Difference between revisions of "LG ENERGY SOLUTION, LTD. patent applications published on October 5th, 2023"

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'''Summary of the patent applications from LG ENERGY SOLUTION, LTD. on October 5th, 2023'''
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LG Energy Solution, Ltd. has recently filed several patents related to battery technology. These patents focus on improving safety, performance, and lifespan of batteries, as well as handling large amounts of electrical current. Some notable applications include:
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* A connector designed to handle large amounts of electrical current. It includes a temperature sensor and a fan unit to regulate the temperature of the terminal member.
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* A lithium secondary battery with a detection probe containing a metal oxide placed on the side surface of the negative electrode mixture layer.
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* A secondary battery with a gas discharge portion designed to discharge only gas, enhancing the safety of the battery.
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* A battery module with multiple battery cells stacked together, enclosed within a module case. It includes a blocking member to prevent heat transfer and the spread of flames between cells.
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* A battery module with multiple battery cells and a gas venting member to allow gas to be vented out from the cells.
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* A battery pack with an anti-fire venting unit that allows gas generated by the battery module to escape from the pack case, reducing the risk of fire.
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* A secondary battery with a vent member made up of three or more layers, each with a different melting point, to control the release of gas in case of an emergency.
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* A secondary battery with a battery case divided into three sealing regions, including a reinforcement-sealing region with a compressed surface and raised surfaces.
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* A battery cell with a gas discharge portion that can be inserted into a sealed area and protrude from the case, allowing for the controlled release of gas.
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These patents demonstrate LG Energy Solution's commitment to developing innovative battery technologies that prioritize safety, performance, and longevity. By addressing issues such as heat transfer, gas discharge, and flame spread, these inventions aim to enhance the overall reliability and efficiency of battery systems.
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==Patent applications for LG ENERGY SOLUTION, LTD. on October 5th, 2023==
 
==Patent applications for LG ENERGY SOLUTION, LTD. on October 5th, 2023==
  
Line 5: Line 24:
 
'''Inventor'''
 
'''Inventor'''
 
Young-Jin Kim
 
Young-Jin Kim
 
'''Brief explanation'''
 
This abstract describes a battery diagnosis apparatus that can determine the presence of lithium deposition in a battery. The apparatus includes a voltage sensor and a current sensor to measure the battery voltage and current. A control circuit uses these measurements to determine a capacity curve, which shows the relationship between the battery voltage and charge capacity during a constant current charging period. The control circuit then determines a differential curve, which shows the relationship between the battery voltage and differential capacity. Using a linear approximation algorithm, the control circuit finds an approximate straight line of the differential curve. Based on this line, the control circuit can determine whether lithium deposition is present in the battery.
 
 
'''Abstract'''
 
A battery diagnosis apparatus includes a voltage sensor to generate a voltage signal indicating a battery voltage of a battery, a current sensor to generate a current signal indicating a battery current of the battery and a control circuit. The control circuit determines a capacity curve indicating a relationship between the battery voltage and a charge capacity in a set voltage range based on the voltage signal and the current signal collected at each unit time for a constant current charging period. The control circuit determines a differential curve indicating a relationship between the battery voltage and a differential capacity in the set voltage range based on the capacity curve. The control circuit determines an approximate straight line of the differential curve using a linear approximation algorithm, and determines whether lithium deposition is present in the battery based on the approximate straight line.
 
  
 
===Battery Diagnosing Apparatus and Method (18022600)===
 
===Battery Diagnosing Apparatus and Method (18022600)===
Line 16: Line 29:
 
'''Inventor'''
 
'''Inventor'''
 
Yoon-Jung Bae
 
Yoon-Jung Bae
 
'''Brief explanation'''
 
The abstract describes a battery diagnosing apparatus that can determine the state of a battery's negative electrode. The apparatus includes a profile generating unit that creates a differential profile, which shows the relationship between the battery's voltage and its differential capacity. A control unit then receives this profile and identifies a target peak in it. The control unit also uses a reference profile to determine the behavior pattern of the target peak. By comparing this behavior pattern with a set of preset behavior types, the apparatus can diagnose the state of the battery's negative electrode.
 
 
'''Abstract'''
 
A battery diagnosing apparatus includes a profile generating unit configured to generate a differential profile representing a corresponding relationship between a voltage of a battery and a differential capacity for the voltage of the battery and a control unit configured to receive the differential profile from the profile generating unit, determine a target peak in the differential profile, determine a behavior pattern of the target peak based on a reference peak included in a preset reference profile, and diagnose a state of a negative electrode of the battery by comparing the behavior pattern determined for the target peak with a plurality of preset behavior types.
 
  
 
===DISCHARGE VOLTAGE GRAPH PREDICTION METHOD AND BATTERY SYSTEM USING THE SAME (18025110)===
 
===DISCHARGE VOLTAGE GRAPH PREDICTION METHOD AND BATTERY SYSTEM USING THE SAME (18025110)===
Line 27: Line 34:
 
'''Inventor'''
 
'''Inventor'''
 
Sun Jong LEE
 
Sun Jong LEE
 
'''Brief explanation'''
 
The abstract describes a method for predicting the discharge graph of a battery cell. This method involves measuring the time it takes for the battery cell voltage to decrease to certain limit voltages during constant current discharges. By analyzing these measurements, a proportional constant and an index parameter can be calculated to determine the relationship between the constant current and the discharge time. This method can help in predicting the performance of a battery cell during discharging.
 
 
'''Abstract'''
 
A method for predicting a constant current discharge graph for a battery cell according to one feature of the invention includes: measuring a first time required for the battery cell voltage to decrease to a first discharge limit voltage by a first constant current discharge; measuring a second time required for the battery cell voltage to decrease to a second discharge limit voltage by a second constant current discharge; and calculating a proportional constant and an index parameter in the relationship between the constant current and the discharge time during a discharging based on the first constant current and the first time, and the second constant current and the second time.
 
  
 
===Relay Switch Device Integrated With Pre-Charge System (18022599)===
 
===Relay Switch Device Integrated With Pre-Charge System (18022599)===
Line 38: Line 39:
 
'''Inventor'''
 
'''Inventor'''
 
Won-Tae Lee
 
Won-Tae Lee
 
'''Brief explanation'''
 
The abstract describes a relay switch device that consists of a relay housing and various terminals. The device includes upper fixing terminals and lower fixing terminals, which are arranged in a specific configuration. The circuit mode switch module allows for the selective contact between the upper and lower fixing terminals by moving a certain distance.
 
 
'''Abstract'''
 
Provided is a relay switch device including a relay housing, a first upper fixing terminal and a second upper fixing terminal arranged side by side over an inside and an outside of the relay housing, a first lower fixing terminal electrically connected to the first upper fixing terminal and arranged under the first upper fixing terminal to be apart a predetermined distance from the first upper fixing terminal, and a second lower fixing terminal electrically connected to the second upper fixing terminal and arranged under the second upper fixing terminal to be apart a predetermined distance from the second upper fixing terminal, and a circuit mode switch module provided to selectively contact the first and second upper fixing terminals or the first and second lower fixing terminals by moving a predetermined distance.
 
  
 
===METHOD OF PREPARING NEGATIVE ELECTRODE (18022781)===
 
===METHOD OF PREPARING NEGATIVE ELECTRODE (18022781)===
Line 49: Line 44:
 
'''Inventor'''
 
'''Inventor'''
 
Hyun Chul KIM
 
Hyun Chul KIM
 
'''Brief explanation'''
 
The abstract describes a method for preparing a negative electrode. This involves creating a structure using expanded natural graphite and then soaking it in a pre-lithiation solution. The soaked structure is then charged electrochemically to a specific level, between 10% and 20% of its total charge capacity.
 
 
'''Abstract'''
 
A method of preparing a negative electrode which includes preparing a negative electrode structure including expanded natural graphite, impregnating the negative electrode structure with a pre-lithiation solution to form an impregnated negative electrode structure, and pre-lithiating the impregnated negative electrode structure by electrochemically charging the impregnated negative electrode structure to 10% to 20% of charge capacity of the negative electrode structure.
 
  
 
===NEGATIVE ELECTRODE AND SECONDARY BATTERY COMPRISING THE NEGATIVE ELECTRODE (18017991)===
 
===NEGATIVE ELECTRODE AND SECONDARY BATTERY COMPRISING THE NEGATIVE ELECTRODE (18017991)===
Line 60: Line 49:
 
'''Inventor'''
 
'''Inventor'''
 
Su Min LEE
 
Su Min LEE
 
'''Brief explanation'''
 
The abstract describes a negative electrode for a secondary battery. The electrode includes a layer of negative electrode active material, which consists of two types of SiO particles. The first type has a size range of 0.1 µm to 0.6 µm, while the second type has a size range of 3 µm to 8 µm. The weight ratio of the two types of particles is between 1:2 and 1:100. The electrode also contains a conductive agent called single-walled carbon nanotubes. The abstract also mentions that the disclosure is related to a secondary battery that includes this negative electrode.
 
 
'''Abstract'''
 
The present disclosure relates to a negative electrode, which includes a negative electrode active material layer including a negative electrode active material and a conductive agent. The negative electrode active material includes a first active material and a second active material, wherein the first active material includes SiO particles (0<x<2), and the second active material includes SiO particles (0<y<2), wherein the SiO particles have a D of 0.1 µm to 0.6 µm, the SiO particles have a D of 3 µm to 8 µm, and a weight ratio of the SiO particles to the SiO particles is in a range of 1:2 to 1:100. The conductive agent includes single-walled carbon nanotubes. The present disclosure also relates to a secondary battery including the same.
 
  
 
===Insulating Composition for Electrode Having Excelling Wet Adhesion and Preparation Method Thereof (18020586)===
 
===Insulating Composition for Electrode Having Excelling Wet Adhesion and Preparation Method Thereof (18020586)===
Line 71: Line 54:
 
'''Inventor'''
 
'''Inventor'''
 
Sang A Choi
 
Sang A Choi
 
'''Brief explanation'''
 
The abstract describes a new insulating material and its preparation method. This material has excellent adhesion when exposed to a liquid electrolyte, which is advantageous because it can prevent the migration of lithium ions in the electrode's overlay region. This suppression of ion migration helps to control capacity expression and other related issues.
 
 
'''Abstract'''
 
The present technology relates to an insulating composition having excellent wet adhesion and a preparation method thereof, and since an insulating coating layer has excellent wet adhesion in a liquid electrolyte, there is an advantage in that migration of lithium ions in an overlay region of an electrode can be blocked to suppress capacity expression and the like.
 
  
 
===Electrode (18024531)===
 
===Electrode (18024531)===
Line 82: Line 59:
 
'''Inventor'''
 
'''Inventor'''
 
Geun Sung Lee
 
Geun Sung Lee
 
'''Brief explanation'''
 
The abstract describes an electrode design that includes a current collector and an active material layer. This design aims to improve the adhesion force between particles within the electrode, as well as the adhesion force between the active material layer and the current collector. The electrode is able to achieve this without relying heavily on binders in the active material layer. The abstract also mentions that this electrode design can be used in an electrochemical element and a secondary battery.
 
 
'''Abstract'''
 
An electrode has a current collector and an active material layer, which can provide an electrode capable of ensuring high levels of adhesion force between particles, and adhesion force between the active material layer and the current collector compared with a binder content in the active material layer. An-electrochemical element and a secondary battery comprising the electrode are also provided.
 
  
 
===POSITIVE ELECTRODE FOR LITHIUM-SULFUR BATTERY AND LITHIUM-SULFUR BATTERY COMPRISING SAME (18024230)===
 
===POSITIVE ELECTRODE FOR LITHIUM-SULFUR BATTERY AND LITHIUM-SULFUR BATTERY COMPRISING SAME (18024230)===
Line 93: Line 64:
 
'''Inventor'''
 
'''Inventor'''
 
Da Young KANG
 
Da Young KANG
 
'''Brief explanation'''
 
The abstract describes a positive electrode for a lithium-sulfur battery. The electrode is made of a sulfur-carbon composite with multiple carbon coating layers on its surface. This design enhances the electrochemical reactivity of the electrode, resulting in a lithium-sulfur battery with high capacity, high output, and long cycle life.
 
 
'''Abstract'''
 
The present disclosure relates to a positive electrode for a lithium-sulfur battery, comprising a sulfur-carbon composite having a plurality of island-shaped carbon coating layers on its surface, and a lithium-sulfur battery including the same. The positive electrode for a lithium-sulfur battery according to the present disclosure has an excellent electrochemical reactivity, which allows the lithium-sulfur battery including the same to have high capacity, high output and long cycle life.
 
  
 
===APPARATUS AND METHOD FOR CONTINUOUSLY MANUFACTURING ELECTRODE (18022934)===
 
===APPARATUS AND METHOD FOR CONTINUOUSLY MANUFACTURING ELECTRODE (18022934)===
Line 104: Line 69:
 
'''Inventor'''
 
'''Inventor'''
 
Suk KIM
 
Suk KIM
 
'''Brief explanation'''
 
The abstract describes an apparatus used for manufacturing electrodes. It consists of guide rollers that move an electrode plate. The apparatus is capable of detecting defects on the electrode plate and cutting it at the start of the defect to create a defective electrode plate. A first taping part connects the defective electrode plate to a defective electrode roll. The apparatus also cuts the electrode plate at the end of the defect to create a normal electrode plate. This normal electrode plate is then connected to a normal electrode roll in a second cutting part. Finally, the apparatus winds and transports the normal electrode roll.
 
 
'''Abstract'''
 
An apparatus for manufacturing an electrode includes a plurality of guide rollers configured to transport an electrode plate. The apparatus detects a defect on the electrode plate being transported and cut, upon detecting the defect, the electrode plate at a starting part of the defect on the electrode plate to form a defective electrode plate. The apparatus also includes a first taping part connecting the defective electrode plate to a defective electrode roll. The apparatus cuts the electrode plate at an ending part of the defect on the electrode plate to form a normal electrode plate. The apparatus connects the normal electrode plate separated from the defective electrode plate in the second cutting part with a normal electrode roll. The apparatus winds and transports the normal electrode roll.
 
  
 
===Cutting Device, and Lamination Apparatus and Lamination Method for Secondary Battery Comprising the Same (18024637)===
 
===Cutting Device, and Lamination Apparatus and Lamination Method for Secondary Battery Comprising the Same (18024637)===
Line 115: Line 74:
 
'''Inventor'''
 
'''Inventor'''
 
Seo Jun Lee
 
Seo Jun Lee
 
'''Brief explanation'''
 
The abstract describes a lamination apparatus used for manufacturing secondary batteries. It consists of a lamination device and a cutting device. The lamination device includes a supply unit that provides electrodes and a bonding unit that bonds the electrodes to a separation sheet, creating a radical unit sheet. The cutting device then cuts the separation sheet of the radical unit sheet, resulting in a radical unit composed of a separator and the electrodes. The cutting device includes a transfer conveyor, a laser cutting unit that uses a laser to cut the separation sheet, a discharge conveyor, and an adjusting unit that controls the cutting speed based on the distance between the transfer and discharge conveyors.
 
 
'''Abstract'''
 
A lamination apparatus for a secondary battery comprises a lamination device and a cutting device. The supply unit supplies electrodes disposed on a separation sheet and a bonding unit which bonds the separation sheet and electrodes to manufacture a radical unit sheet. The cutting device cuts the separation sheet of the radical unit sheet to manufacture a radical unit constituted of a separator and the electrodes. The cutting device comprises a transfer conveyor, which transfers the radical unit sheet, a laser cutting unit, which irradiates a laser onto and thereby cuts the separation sheet of the radical unit sheet to manufacture the radical unit, a discharge conveyor, which transfers the radical unit cut by the laser cutting unit, and an adjusting unit which adjusts a speed for cutting the separation sheet passing through the laser cutting unit depending on a spaced distance between the transfer conveyor and the discharge conveyor.
 
  
 
===MEANDERING CORRECTION DEVICE FOR ELECTRODE AND MEANDERING CORRECTION METHOD FOR ELECTRODE (18011720)===
 
===MEANDERING CORRECTION DEVICE FOR ELECTRODE AND MEANDERING CORRECTION METHOD FOR ELECTRODE (18011720)===
Line 126: Line 79:
 
'''Inventor'''
 
'''Inventor'''
 
Dong Wook KIM
 
Dong Wook KIM
 
'''Brief explanation'''
 
This abstract describes an apparatus and method for correcting the meandering of an electrode. The apparatus includes a determination edge position sensor (EPS) that measures the edge position of the electrode. The edge position is then compared to a reference value, and a feedback control system adjusts the position of the electrode to match the reference value. Additionally, a line edge position control (EPC) unit corrects the direction in which the electrode is transferred by comparing data on the determination EPS edge position values over time. The feedback control system ensures that the determination EPS edge position values converge to the determination EPS edge reference value.
 
 
'''Abstract'''
 
An apparatus and method for correcting meandering of an electrode are provided. An edge position of the electrode is feedback-controlled so that a determination edge position sensor (EPS) edge position value matches a determination EPS edge reference value, and a line edge position control (EPC) unit is feedback-controlled so that a direction in which the electrode is transferred from a line EPC roller is corrected by comparing pieces of data on the determination EPS edge position values when the determination EPS edge position values change over time to converge to the determination EPS edge reference value by the feedback control, and the determination EPS edge reference value.
 
  
 
===METHOD OF MANUFACTURING SECONDARY BATTERY (18022909)===
 
===METHOD OF MANUFACTURING SECONDARY BATTERY (18022909)===
Line 137: Line 84:
 
'''Inventor'''
 
'''Inventor'''
 
Jeonghui HAN
 
Jeonghui HAN
 
'''Brief explanation'''
 
This abstract describes a method for manufacturing a secondary battery. The process involves creating an electrode assembly by winding a first electrode, a second electrode, and a separator together. A tape is then attached to cover the outer edge of the electrode assembly. The assembly is placed in a battery casing with an open end, and the tape is removed by pulling a portion of it towards the open end of the casing.
 
 
'''Abstract'''
 
A method of manufacturing a secondary battery includes manufacturing an electrode assembly by winding a first electrode, a second electrode, and a separator together; attaching a tape to cover an outermost edge portion of the electrode assembly; accommodating the electrode assembly in a battery casing having an open end; and removing the tape attached to the electrode assembly from the electrode assembly. The tape includes a first portion attached to the electrode assembly, and a second portion extending from the first portion in a first direction towards the open end of the battery casing. In the removing the tape, the tape is removed by pulling the second portion.
 
  
 
===MEANDERING CORRECTION DEVICE FOR ELECTRODE AND MEANDERING CORRECTION METHOD FOR ELECTRODE (18011719)===
 
===MEANDERING CORRECTION DEVICE FOR ELECTRODE AND MEANDERING CORRECTION METHOD FOR ELECTRODE (18011719)===
Line 148: Line 89:
 
'''Inventor'''
 
'''Inventor'''
 
Dong Wook KIM
 
Dong Wook KIM
 
'''Brief explanation'''
 
The abstract describes an apparatus and method for correcting the meandering of an electrode. The apparatus includes an edge position sensor (EPS) that measures the position of the electrode's edge. The EPS edge position value is compared to a reference value, and feedback control is used to adjust the position of the electrode's edge. The apparatus also includes a line edge position control (EPC) unit and an input clamp unit, which are also feedback-controlled to correct the direction of electrode transfer and the inclination of an input clamp roller. The feedback control is based on comparing the EPS edge position values over time to converge to the EPS edge reference value.
 
 
'''Abstract'''
 
An apparatus and method for correcting meandering of an electrode are provided. An edge position of the electrode is feedback-controlled so that a determination edge position sensor (EPS) edge position value matches a determination EPS edge reference value, and each of a line edge position control (EPC) unit and an input clamp unit is feedback-controlled so that a direction in which the electrode is transferred from a line EPC roller is corrected and an input inclination of an input clamp roller is corrected by comparing pieces of data on the determination EPS edge position values when the determination EPS edge position values change over time to converge to the determination EPS edge reference value by the feedback control, and the determination EPS edge reference value.
 
  
 
===LITHIUM SECONDARY BATTERY (18025163)===
 
===LITHIUM SECONDARY BATTERY (18025163)===
Line 159: Line 94:
 
'''Inventor'''
 
'''Inventor'''
 
Jihoon AHN
 
Jihoon AHN
 
'''Brief explanation'''
 
The abstract describes a lithium secondary battery that consists of multiple unit cells. Each unit cell contains a positive electrode, a negative electrode, and a separator. The battery also includes a solid-state lithium nitrate holder, an electrolyte solution, and a battery case. All these components are contained within the battery case.
 
 
'''Abstract'''
 
A lithium secondary battery includes a cell stack having one or more unit cells. Each of the one or more unit cells includes a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode. The lithium secondary battery includes a lithium nitrate holder in a solid state, an electrolyte solution, and a battery case. The cell stack, the lithium nitrate holder in the solid state, and the electrolyte solution are in the battery case.
 
  
 
===ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME (18011473)===
 
===ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME (18011473)===
Line 170: Line 99:
 
'''Inventor'''
 
'''Inventor'''
 
Dojoong LEE
 
Dojoong LEE
 
'''Brief explanation'''
 
The abstract describes a new electrolyte solution for lithium secondary batteries. This solution includes magnesium chloride, which helps to create a protective layer on the battery electrodes, preventing the consumption of salts and additives in the electrolyte. This improves the lifetime of the battery. The electrolyte solution also contains a first solvent with oxygen or sulfur atoms, a second solvent with compounds like ethers, esters, amides, or carbonates, a lithium salt, magnesium chloride, and lithium nitrate.
 
 
'''Abstract'''
 
Disclosed is an electrolyte solution for a lithium secondary battery capable of improving the lifetime of a lithium secondary battery, by including a certain amount of magnesium chloride (MgCl) in the electrolyte to form a stable electrode protective layer that prevents the consumption of salts and additives in the electrolyte solution, and a lithium secondary battery comprising the same. The electrolyte solution for the lithium secondary battery comprises a first solvent comprising a heterocyclic compound containing at least one of an oxygen atom and a sulfur atom; a second solvent comprising at least one of an ether-based compound, an ester-based compound, an amide-based compound, and a carbonate-based compound; a lithium salt; magnesium chloride; and lithium nitrate.
 
  
 
===Apparatus and Method for Battery Lamination Processing (18024920)===
 
===Apparatus and Method for Battery Lamination Processing (18024920)===
Line 181: Line 104:
 
'''Inventor'''
 
'''Inventor'''
 
Dae Bong Lim
 
Dae Bong Lim
 
'''Brief explanation'''
 
The abstract describes a machine used for processing batteries. This machine includes a roller that applies pressure to a layered structure of electrodes and separators. The roller presses the outer surface of the layered structure as it moves in a specific direction.
 
 
'''Abstract'''
 
A battery lamination processing apparatus includes a pressure roller that presses an electrode laminate, wherein the electrode laminate includes a first electrode, a second electrode, and a first separator, and wherein the pressure roller presses the outer surface of the electrode laminate along a travelling direction of the electrode laminate.
 
  
 
===METHOD FOR CHARGING AND DISCHARGING SECONDARY BATTERY (18022935)===
 
===METHOD FOR CHARGING AND DISCHARGING SECONDARY BATTERY (18022935)===
Line 192: Line 109:
 
'''Inventor'''
 
'''Inventor'''
 
Chan Soo JUN
 
Chan Soo JUN
 
'''Brief explanation'''
 
This abstract describes a method for charging and discharging a secondary battery. The method involves pre-lithiating a negative electrode that contains a silicon-based active material. A secondary battery is then prepared using this pre-lithiated negative electrode, along with a positive electrode, a separator, and an electrolyte. The secondary battery is then charged and discharged through at least one cycle. The charging and discharging process is performed in a way that maintains a specific difference between the charge state of the pre-lithiated negative electrode and its discharge state of charge. Specifically, this difference is set to be between 18% and 32%.
 
 
'''Abstract'''
 
Methods for charging and discharging a secondary battery are disclosed, which includes: pre-lithiating a negative electrode comprising a silicon-based active material; preparing a secondary battery including the pre-lithiated negative electrode, a positive electrode, a separator, and an electrolyte; and electrochemically charging and discharging the secondary battery with at least one cycle, wherein the electrochemical charging and discharging of the secondary battery is performed so that a difference between a charge SOC and a discharge state of charge (SOC) of the pre-lithiated negative electrode is 18% to 32%.
 
  
 
===BATTERY MANAGEMENT APPARATUS AND METHOD (18013159)===
 
===BATTERY MANAGEMENT APPARATUS AND METHOD (18013159)===
Line 203: Line 114:
 
'''Inventor'''
 
'''Inventor'''
 
Du-Seong YOON
 
Du-Seong YOON
 
'''Brief explanation'''
 
The abstract describes a battery management apparatus that measures the voltage and capacity of a battery cell. It then generates a battery profile based on this information, as well as a reference negative electrode profile and a reference negative electrode differential profile. The apparatus also includes a control unit that receives the generated positive electrode profile and derives a conversion function from a reference positive electrode profile. It uses this function to generate a positive electrode prediction profile and a battery prediction profile for the battery cell.
 
 
'''Abstract'''
 
A battery management apparatus includes: a measuring unit to measure voltage and capacity of a battery cell; a profile generating unit to generate a battery profile representing a correspondence between the voltage and the capacity measured by the measuring unit and generate a positive electrode profile of the battery cell based on the generated battery profile and a reference negative electrode profile and a reference negative electrode differential profile preset for the battery cell; and a control unit configured to receive the generated positive electrode profile from the profile generating unit, derive a conversion function representing conversion information from the reference positive electrode profile to the generated positive electrode profile, generate a positive electrode prediction profile for the battery cell from the reference positive electrode profile based on the derived conversion function, and generate a battery prediction profile for the battery cell based on the generated positive electrode prediction profile.
 
  
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME AND MANUFACTURING METHOD OF THE SAME (18022481)===
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME AND MANUFACTURING METHOD OF THE SAME (18022481)===
Line 214: Line 119:
 
'''Inventor'''
 
'''Inventor'''
 
Honggoo HAN
 
Honggoo HAN
 
'''Brief explanation'''
 
The abstract describes a battery module that consists of a stack of battery cells with electrode leads protruding from it. The battery cell stack is covered by two sensing blocks, one on the front surface and one on the rear surface, and an elastic member covers the side surfaces of the sensing blocks and the battery cell stack. Some of the electrode leads are bent and joined together after passing through a slit in one of the sensing blocks, forming an electrode lead assembly. The elastic member then covers the electrode lead assembly.
 
 
'''Abstract'''
 
A battery module including a battery cell stack in which a plurality of battery cells are stacked with a plurality of electrode leads protruding from the battery cell stack; a first sensing block and a second sensing block that cover the front surface and the rear surface of the battery cell stack with the plurality of protruding electrode leads, respectively; and an elastic member that covers both side surfaces of each of the first sensing block, the second sensing block, and the battery cell stack. At least two of the electrode leads are bent and joined after passing through a slit in the first sensing block or a slit in the second sensing block to form an electrode lead assembly, and the elastic member covers the electrode lead assembly.
 
  
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022555)===
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022555)===
Line 225: Line 124:
 
'''Inventor'''
 
'''Inventor'''
 
Honggoo HAN
 
Honggoo HAN
 
'''Brief explanation'''
 
The abstract describes a battery module that consists of a stack of battery cells with electrode leads. The battery cell stack is covered by two sensing blocks, one on the front surface and one on the rear surface, where the electrode leads protrude. The sensing blocks are also covered by an elastic member on both side surfaces. Each sensing block has a protrusion that extends in the opposite direction of the battery cell stack.
 
 
'''Abstract'''
 
A battery module includes a battery cell stack in which a plurality of battery cells including electrode leads are stacked; a first sensing block and a second sensing block that cover the front surface and the rear surface of the battery cell stack from which the electrode leads protrude; and an elastic member that covers both side surfaces of the first sensing block, the second sensing block, and the battery cell stack, wherein each of the first sensing block and the second sensing block includes an outer protrusion part that protrudes in a direction opposite to a direction in which the battery cell stack is located.
 
  
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18021154)===
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18021154)===
Line 236: Line 129:
 
'''Inventor'''
 
'''Inventor'''
 
Won Kyoung Park
 
Won Kyoung Park
 
'''Brief explanation'''
 
The abstract describes a battery module and a battery pack that includes the module. The battery module consists of multiple battery cells stacked together, each with a protruding electrode lead. The module also includes a cooling fin positioned between the battery cells. The cooling fin is designed to make contact with a specific area of the battery cell where the electrode lead is located.
 
 
'''Abstract'''
 
A battery module and a battery pack including the same are provided. The battery module includes a battery cell stack in which a plurality of battery cells are stacked, the battery cell including a protruding electrode lead, and a cooling fin located between the battery cells, the cooling fin being disposed so as to come into contact with a region including one end portion of the battery cell in a direction in which the electrode lead protrudes.
 
  
 
===BATTERY PACK AND VEHICLE COMPRISING SAME (18010444)===
 
===BATTERY PACK AND VEHICLE COMPRISING SAME (18010444)===
Line 247: Line 134:
 
'''Inventor'''
 
'''Inventor'''
 
Kwang-Keun OH
 
Kwang-Keun OH
 
'''Brief explanation'''
 
The abstract describes a battery pack designed to be installed in a vehicle. It consists of multiple battery cells, a base plate that supports these cells, and a cross beam unit. The cross beam unit is positioned over a specific length across the width of the base plate and is placed between the battery cells in the lengthwise direction. Its purpose is to attach and secure the adjacent battery cells in the lengthwise direction.
 
 
'''Abstract'''
 
A battery pack configured to be mounted in a vehicle according to an embodiment of the present disclosure includes a plurality of battery cells; a base plate supporting the plurality of battery cells; and a cross beam unit positioned over a predetermined length along a widthwise direction of the base plate, and interposed between the plurality of battery cells in a lengthwise direction of the base plate to attach and fix the facing battery cells in the lengthwise direction.
 
  
 
===Battery Pack and Vehicle Comprising the Same (18024391)===
 
===Battery Pack and Vehicle Comprising the Same (18024391)===
Line 258: Line 139:
 
'''Inventor'''
 
'''Inventor'''
 
Soon-Chang Hong
 
Soon-Chang Hong
 
'''Brief explanation'''
 
The abstract describes a battery pack that consists of two battery modules stacked on top of each other. The modules are covered by top covers, and a cooling device called an inter-top cover part is placed between the top covers. This cooling device has an upper and lower member joined together to create a space for cooling water to flow through. There are gaskets placed at the contact areas between the top covers and the inter-top cover part.
 
 
'''Abstract'''
 
A battery pack includes a first battery module; a first top cover provided on the first battery module; a second battery module mounted on top of the first battery module on the first top cover; a second top cover provided on the second battery module; an inter-top cover part as a cooling device interposed between the first top cover and the second top cover, and including an inter-top cover part upper member and an inter-top cover part lower member joined to each other by brazing to form a cooling water passage space inside, and an inter-top cover part port for entry/exit of cooling water to/from the cooling water passage space; a lower gasket provided at a contact area between the first top cover and the inter-top cover part; and an upper gasket provided at a contact area between the second top cover and the inter-top cover part.
 
  
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022706)===
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022706)===
Line 269: Line 144:
 
'''Inventor'''
 
'''Inventor'''
 
Tae Geun KIM
 
Tae Geun KIM
 
'''Brief explanation'''
 
The abstract describes a battery module that consists of multiple battery cells stacked together. The module is housed in a frame that covers the top, bottom, and sides of the battery cell assembly, with openings in the front and rear. A heat sink is located on the module frame and has cooling flow paths. A venting cover is placed on the heat sink. The battery cell assembly is made up of two separate assemblies arranged in a way that they face each other.
 
 
'''Abstract'''
 
A battery module includes a battery cell assembly in which a plurality of battery cells are stacked; a module frame that houses the upper and lower surface and both side surfaces of the battery cell assembly and is opened in its front and rear surfaces; a heat sink that is located on the module frame, but also includes a plurality of cooling flow paths; and a venting cover that is located on the heat sink, wherein the battery cell assembly includes a first battery cell assembly and a second battery cell assembly, and wherein the first battery cell assembly and the second battery cell assembly are arranged separately in a direction facing each other.
 
  
 
===BATTERY MODULE HAVING COOLING STRUCTURE USING INSULATING OIL, AND BATTERY PACK AND VEHICLE WHICH INCLUDE SAME (18024672)===
 
===BATTERY MODULE HAVING COOLING STRUCTURE USING INSULATING OIL, AND BATTERY PACK AND VEHICLE WHICH INCLUDE SAME (18024672)===
Line 280: Line 149:
 
'''Inventor'''
 
'''Inventor'''
 
Eun-Ah JU
 
Eun-Ah JU
 
'''Brief explanation'''
 
The abstract describes a battery module that consists of several components. These components include a sub-module with multiple battery cells and cooling fins, bus bar frames, a housing with a main section and lower and upper covers, an insulating oil inlet, and an insulating oil outlet. The purpose of the battery module is to supply and discharge insulating oil to and from the sub-module.
 
 
'''Abstract'''
 
A battery module including: a sub-module including a cell stack including a plurality of battery cells and cooling fins located between adjacent battery cells, front and rear bus bar frames coupled to first and second sides of the cell stack in a longitudinal direction of the cell stack, respectively; a housing including a main housing accommodating the sub-module, lower and upper covers covering a lower opening and an upper opening, respectively, of the main housing; an insulating oil inlet passing through a first side of the main housing in a longitudinal direction of the main housing and configured to supply insulating oil into a receiving space of the sub-module; and an insulating oil outlet passing through a second side of the main housing in the longitudinal direction of the main housing and configured to discharge the insulating oil from the receiving space of the sub-module.
 
  
 
===Pouch-Type Secondary Battery and Method for Manufacturing the Same (18020815)===
 
===Pouch-Type Secondary Battery and Method for Manufacturing the Same (18020815)===
Line 291: Line 154:
 
'''Inventor'''
 
'''Inventor'''
 
Se Young Oh
 
Se Young Oh
 
'''Brief explanation'''
 
The abstract describes a type of secondary battery that is designed in a pouch shape. It consists of an electrode assembly, which includes stacked electrodes and separators, and a battery case with a cup-shaped part to hold the electrode assembly. The key feature of this battery is that the difference in width between the cap part of the case and the electrode assembly is 2.5 mm or less.
 
 
'''Abstract'''
 
A pouch-type secondary battery according to an embodiment of the present invention for achieving the above object includes: an electrode assembly in which electrodes and separators are stacked; and a pouch-type battery case comprising a cup part configured to accommodate the electrode assembly therein, wherein a difference in width of the cap part and the electrode assembly is 2.5 mm or less.
 
  
 
===Battery Cell and Battery Module Including the Same (18024576)===
 
===Battery Cell and Battery Module Including the Same (18024576)===
Line 302: Line 159:
 
'''Inventor'''
 
'''Inventor'''
 
Hun-Hee Lim
 
Hun-Hee Lim
 
'''Brief explanation'''
 
The abstract describes a battery cell that has a case with a space for an electrode assembly and a sealed area around it. The cell also has a gas discharge portion that can be inserted into the sealed area and protrude from the case. The gas discharge portion consists of a non-adhesive layer and an adhesive layer, which can be bent to open towards the inside of the case.
 
 
'''Abstract'''
 
Disclosed is a battery cell, which includes a battery case having an accommodation portion in which an electrode assembly is mounted, and a sealing portion formed by sealing an outer periphery thereof. A gas discharge portion can be inserted into the sealing portion. The gas discharge portion can protrude from the inside of the battery case toward the outside of the battery case. The gas discharge portion can include a non-adhesive layer and an adhesive layer located on the non-adhesive layer. The non-adhesive layer and the adhesive layer can be bent to be opened toward the inside of the battery case.
 
  
 
===Secondary Battery, and Apparatus and Method for Manufacturing Secondary Battery (18024540)===
 
===Secondary Battery, and Apparatus and Method for Manufacturing Secondary Battery (18024540)===
Line 313: Line 164:
 
'''Inventor'''
 
'''Inventor'''
 
Won Pill Hwang
 
Won Pill Hwang
 
'''Brief explanation'''
 
The abstract describes a secondary battery that consists of several components, including an electrode assembly, an electrode lead, a battery case, and a lead film. The battery case has a sealing portion that seals an accommodation portion for the electrode assembly. The sealing portion is divided into three regions: a connection-sealing region, a front end-sealing region, and a reinforcement-sealing region in between. The reinforcement-sealing region has a compressed surface that is recessed into the sealing portion, and raised surfaces on either side of the compressed surface that are thicker than the compressed surface. The battery case is made up of a resin layer, a metal layer, and an insulating layer. The resin layer of the raised surfaces is thicker than the resin layer of the compressed surface.
 
 
'''Abstract'''
 
A secondary battery includes: an electrode assembly; an electrode lead; a battery case with an accommodation portion for the electrode assembly and a sealing portion sealing the accommodation portion; and a lead film. The sealing portion includes a connection-sealing region connected to the accommodation portion, a front end-sealing region, and a reinforcement-sealing region therebetween. The reinforcement-sealing region includes a compressed surface, provided in the sealing portion between the connection-sealing region and the front end-sealing region and recessed into the sealing portion, and raised surfaces, provided in the sealing portion between the connection-sealing region and the compressed surface and between the front end-sealing region and the compressed surface and each of which is formed thicker than the compressed surface. The battery case has a resin layer, a metal layer, and an insulating layer. The resin layer of the raised surface is formed thicker than the resin layer of the compressed surface.
 
  
 
===Secondary Battery (18029270)===
 
===Secondary Battery (18029270)===
Line 324: Line 169:
 
'''Inventor'''
 
'''Inventor'''
 
Soo-Ji Hwang
 
Soo-Ji Hwang
 
'''Brief explanation'''
 
This abstract describes a secondary battery that includes an electrode assembly, an electrode lead, a case, a lead film, a vent region, and a vent member. The electrode assembly is the main component of the battery, and the electrode lead is attached to it. The case is designed to hold the electrode assembly. A lead film is formed around a part of the electrode lead and is placed between the electrode lead and the case. The case also has a vent region, and a vent member is inserted into this region. The vent member is made up of three or more layers, with a first resin in the bottom layer, a second resin in the top layer, and a third resin in the middle layer. The second resin has a higher melting point than the first resin, and the third resin has a higher melting point than the second resin.
 
 
'''Abstract'''
 
Disclosed herein is a secondary battery. The secondary battery can include an electrode assembly, an electrode lead attached to the electrode assembly, a case configured to accommodate the electrode assembly, a lead film formed to surround a part of an outer surface of the electrode lead and interposed between the electrode lead and the case, a vent region formed in at least a part of the case, and a vent member inserted into the vent region and having a structure of three or more layers including a first resin in a lowermost layer, a second resin in an uppermost layer, and a third resin in a middle layer. The second resin can be a resin having a higher melting point than the first resin, and the third resin can be a resin having a higher melting point than the second resin.
 
  
 
===BATTERY PACK WITH STRUCTURE FOR REDUCING THE TEMPERATURE OF VENTING GAS AND PREVENTING THE EMISSION OF SPARK (18020560)===
 
===BATTERY PACK WITH STRUCTURE FOR REDUCING THE TEMPERATURE OF VENTING GAS AND PREVENTING THE EMISSION OF SPARK (18020560)===
Line 335: Line 174:
 
'''Inventor'''
 
'''Inventor'''
 
Doo-Han YOON
 
Doo-Han YOON
 
'''Brief explanation'''
 
The abstract describes a battery pack that consists of a battery module, a pack case, and an anti-fire venting unit. The venting unit is designed to allow gas generated by the battery module to escape from the pack case. It includes a temperature reducing tunnel made of porous metal and a mesh cover at the entrance or exit of the tunnel. The purpose of this design is to prevent the battery pack from catching fire by reducing the temperature of the gas and ensuring proper ventilation.
 
 
'''Abstract'''
 
A battery pack includes at least one battery module; a pack case accommodating the battery module; and an anti-fire venting unit positioned on a gas venting path configured to guide gas generated from the battery module to flow out of the pack case, wherein the anti-fire venting unit includes a temperature reducing tunnel made of metal having pores; and a mesh configured to cover at least one of an entrance or an exit of the temperature reducing tunnel.
 
  
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022702)===
 
===BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022702)===
Line 346: Line 179:
 
'''Inventor'''
 
'''Inventor'''
 
Kwangmo KIM
 
Kwangmo KIM
 
'''Brief explanation'''
 
The abstract describes a battery module that consists of multiple battery cells stacked together. The module also includes a housing to hold the battery cells and front and rear end plates to cover the front and back of the cell stack. One of these components (the housing, front end plate, or rear end plate) has a venting part designed to release gas and flame. The venting part is shaped in a way that redirects the path of the gas and flame.
 
 
'''Abstract'''
 
A battery module including a battery cell stack in which a plurality of battery cells are stacked; a housing for housing the battery cell stack; and front and rear end plates for covering the front and rear surfaces, respectively, of the battery cell stack. At least one of the housing, front end plate or rear end plate includes a venting part for discharging gas and flame, and the venting part has a shape that bends a discharge path of the gas and flame.
 
  
 
===BATTERY MODULE, AND BATTERY PACK AND VEHICLE COMPRISING THE SAME (18024292)===
 
===BATTERY MODULE, AND BATTERY PACK AND VEHICLE COMPRISING THE SAME (18024292)===
Line 357: Line 184:
 
'''Inventor'''
 
'''Inventor'''
 
Ju-Hwan SHIN
 
Ju-Hwan SHIN
 
'''Brief explanation'''
 
The abstract describes a battery module that consists of multiple battery cells with electrode leads on one side. These cells are housed in a module housing, which has an exit port on the same side as the electrode leads. This exit port allows gas to be vented out from the battery cells. The module also includes a gas venting member that covers the module housing and has a passage for the gas to move along.
 
 
'''Abstract'''
 
A battery module includes a plurality of battery cells having electrode leads on at least one side; a module housing having an accommodation space in which the plurality of battery cells is received, the module housing including an exit port on the at least one side having the electrode leads of the plurality of battery cells, the exit port through gas vented from the plurality of battery cells exits; and a gas venting member configured to cover at least one side of the module housing, the gas venting member having a passage along which the gas coming out of the exit port moves.
 
  
 
===BATTERY MODULE WITH REINFORCED SAFETY (18128576)===
 
===BATTERY MODULE WITH REINFORCED SAFETY (18128576)===
Line 368: Line 189:
 
'''Inventor'''
 
'''Inventor'''
 
Sung-Hwan JANG
 
Sung-Hwan JANG
 
'''Brief explanation'''
 
The abstract describes a battery module that has been designed to enhance safety in the event of a thermal incident. The module consists of multiple battery cells stacked together, enclosed within a module case. To prevent heat transfer between the cells and the spread of flames, a blocking member is placed between adjacent cells. This blocking member includes a heat transfer preventing unit and a flame transfer preventing unit. The heat transfer preventing unit stops heat from transferring between cells, while the flame transfer preventing unit blocks the spread of flames between cells.
 
 
'''Abstract'''
 
Discussed is a battery module with an improved structure to reinforce safety when a thermal event occurs inside the battery module. The battery module includes a plurality of battery cells stacked in at least one direction; a module case having an inner space and configured to accommodate the plurality of battery cells; and a blocking member interposed between adjacent battery cells of the plurality of battery cells and including a heat transfer preventing unit configured to prevent heat transfer between the adjacent battery cells and a flame transfer preventing unit provided to an inner side of the heat transfer preventing unit and configured to block a flame from spreading between the adjacent battery cells.
 
  
 
===Secondary Battery Including Gas Discharge Portion Configured to Discharge Gas and Secondary Battery Manufacturing Method (18011735)===
 
===Secondary Battery Including Gas Discharge Portion Configured to Discharge Gas and Secondary Battery Manufacturing Method (18011735)===
Line 379: Line 194:
 
'''Inventor'''
 
'''Inventor'''
 
Hun Hee Lim
 
Hun Hee Lim
 
'''Brief explanation'''
 
The abstract describes a secondary battery that has been designed to improve safety, performance, and lifespan. It includes a gas discharge portion that is specifically designed to discharge only gas, which enhances the safety of the battery. The abstract also mentions a secondary battery manufacturing method, which involves an electrode assembly and a case with a receiving portion for the assembly. The case is sealed to create a sealed portion, and within this sealed portion, there is a gas discharge portion. This gas discharge portion has one end in contact with the receiving portion and the other end in contact with the outside, and it is designed to selectively discharge only gas.
 
 
'''Abstract'''
 
A secondary battery includes a gas discharge portion configured to discharge only gas, whereby safety of the secondary battery is improved while performance and lifespan of the secondary battery are improved. Also described are a secondary battery manufacturing method, and more particularly a secondary battery including an electrode assembly and a case including a receiving portion configured to receive the electrode assembly, a sealed portion formed as the result of hermetically sealing the periphery of the receiving portion, and a gas discharge portion disposed in the sealed portion, the gas discharge portion having one end disposed in contact with the receiving portion and the other end disposed in contact with the outside, the gas discharge portion being configured to selectively discharge only gas.
 
  
 
===LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF (18021203)===
 
===LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF (18021203)===
Line 390: Line 199:
 
'''Inventor'''
 
'''Inventor'''
 
Jun Soo PARK
 
Jun Soo PARK
 
'''Brief explanation'''
 
The abstract discusses a lithium secondary battery and a method of manufacturing it. The battery consists of an electrode assembly with a positive electrode, a negative electrode, and a separator in between. The negative electrode includes a current collector and a mixture layer, which is located between the current collector and the separator. Additionally, a detection probe containing a metal oxide is placed on the side surface of the negative electrode mixture layer. The detection probe has a potential plateau ranging from 1.3 V to 1.8 V.
 
 
'''Abstract'''
 
Discussed is a lithium secondary battery and a method of manufacturing the lithium secondary battery. The lithium secondary battery may include an electrode assembly including a positive electrode, a negative electrode, and a separator positioned between the positive electrode and the negative electrode, wherein the negative electrode includes a negative electrode current collector and a negative electrode mixture layer, the negative electrode mixture layer being formed between the negative electrode current collector and the separator, and wherein a detection probe containing a metal oxide has a potential plateau of 1.3 V to 1.8 V is provided on a side surface of the negative electrode mixture layer.
 
  
 
===Connector Including Cooling Fan (18020460)===
 
===Connector Including Cooling Fan (18020460)===
Line 401: Line 204:
 
'''Inventor'''
 
'''Inventor'''
 
Sung-Gyu Kim
 
Sung-Gyu Kim
 
'''Brief explanation'''
 
This abstract describes a connector that is designed to handle large amounts of electrical current. The connector includes a terminal member for transmitting the current, a housing to hold the terminal member, and a temperature sensor attached to the terminal member. There is also a fan unit inside the housing that turns on when the temperature of the terminal member exceeds a certain threshold. Additionally, there is an exhaust cover on the side of the housing that opens and closes due to wind pressure when the fan unit is operating.
 
 
'''Abstract'''
 
A connector for large current according to the present disclosure includes: a terminal member capable of large current transmission; a connector housing in which the terminal member is accommodated; a temperature sensor attached to the terminal member; a fan unit provided in the connector housing, and configured to operate when a temperature of the terminal member is higher than a preset threshold temperature; and an exhaust cover provided on a side of the connector housing and opened/closed by wind pressure when the fan unit operates.
 

Latest revision as of 01:41, 12 October 2023

Summary of the patent applications from LG ENERGY SOLUTION, LTD. on October 5th, 2023

LG Energy Solution, Ltd. has recently filed several patents related to battery technology. These patents focus on improving safety, performance, and lifespan of batteries, as well as handling large amounts of electrical current. Some notable applications include:

  • A connector designed to handle large amounts of electrical current. It includes a temperature sensor and a fan unit to regulate the temperature of the terminal member.
  • A lithium secondary battery with a detection probe containing a metal oxide placed on the side surface of the negative electrode mixture layer.
  • A secondary battery with a gas discharge portion designed to discharge only gas, enhancing the safety of the battery.
  • A battery module with multiple battery cells stacked together, enclosed within a module case. It includes a blocking member to prevent heat transfer and the spread of flames between cells.
  • A battery module with multiple battery cells and a gas venting member to allow gas to be vented out from the cells.
  • A battery pack with an anti-fire venting unit that allows gas generated by the battery module to escape from the pack case, reducing the risk of fire.
  • A secondary battery with a vent member made up of three or more layers, each with a different melting point, to control the release of gas in case of an emergency.
  • A secondary battery with a battery case divided into three sealing regions, including a reinforcement-sealing region with a compressed surface and raised surfaces.
  • A battery cell with a gas discharge portion that can be inserted into a sealed area and protrude from the case, allowing for the controlled release of gas.

These patents demonstrate LG Energy Solution's commitment to developing innovative battery technologies that prioritize safety, performance, and longevity. By addressing issues such as heat transfer, gas discharge, and flame spread, these inventions aim to enhance the overall reliability and efficiency of battery systems.



Contents

Patent applications for LG ENERGY SOLUTION, LTD. on October 5th, 2023

Battery Diagnosis Device, Battery Diagnosis Method, Battery Pack and Electric Vehicle (18011746)

Inventor Young-Jin Kim

Battery Diagnosing Apparatus and Method (18022600)

Inventor Yoon-Jung Bae

DISCHARGE VOLTAGE GRAPH PREDICTION METHOD AND BATTERY SYSTEM USING THE SAME (18025110)

Inventor Sun Jong LEE

Relay Switch Device Integrated With Pre-Charge System (18022599)

Inventor Won-Tae Lee

METHOD OF PREPARING NEGATIVE ELECTRODE (18022781)

Inventor Hyun Chul KIM

NEGATIVE ELECTRODE AND SECONDARY BATTERY COMPRISING THE NEGATIVE ELECTRODE (18017991)

Inventor Su Min LEE

Insulating Composition for Electrode Having Excelling Wet Adhesion and Preparation Method Thereof (18020586)

Inventor Sang A Choi

Electrode (18024531)

Inventor Geun Sung Lee

POSITIVE ELECTRODE FOR LITHIUM-SULFUR BATTERY AND LITHIUM-SULFUR BATTERY COMPRISING SAME (18024230)

Inventor Da Young KANG

APPARATUS AND METHOD FOR CONTINUOUSLY MANUFACTURING ELECTRODE (18022934)

Inventor Suk KIM

Cutting Device, and Lamination Apparatus and Lamination Method for Secondary Battery Comprising the Same (18024637)

Inventor Seo Jun Lee

MEANDERING CORRECTION DEVICE FOR ELECTRODE AND MEANDERING CORRECTION METHOD FOR ELECTRODE (18011720)

Inventor Dong Wook KIM

METHOD OF MANUFACTURING SECONDARY BATTERY (18022909)

Inventor Jeonghui HAN

MEANDERING CORRECTION DEVICE FOR ELECTRODE AND MEANDERING CORRECTION METHOD FOR ELECTRODE (18011719)

Inventor Dong Wook KIM

LITHIUM SECONDARY BATTERY (18025163)

Inventor Jihoon AHN

ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME (18011473)

Inventor Dojoong LEE

Apparatus and Method for Battery Lamination Processing (18024920)

Inventor Dae Bong Lim

METHOD FOR CHARGING AND DISCHARGING SECONDARY BATTERY (18022935)

Inventor Chan Soo JUN

BATTERY MANAGEMENT APPARATUS AND METHOD (18013159)

Inventor Du-Seong YOON

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME AND MANUFACTURING METHOD OF THE SAME (18022481)

Inventor Honggoo HAN

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022555)

Inventor Honggoo HAN

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18021154)

Inventor Won Kyoung Park

BATTERY PACK AND VEHICLE COMPRISING SAME (18010444)

Inventor Kwang-Keun OH

Battery Pack and Vehicle Comprising the Same (18024391)

Inventor Soon-Chang Hong

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022706)

Inventor Tae Geun KIM

BATTERY MODULE HAVING COOLING STRUCTURE USING INSULATING OIL, AND BATTERY PACK AND VEHICLE WHICH INCLUDE SAME (18024672)

Inventor Eun-Ah JU

Pouch-Type Secondary Battery and Method for Manufacturing the Same (18020815)

Inventor Se Young Oh

Battery Cell and Battery Module Including the Same (18024576)

Inventor Hun-Hee Lim

Secondary Battery, and Apparatus and Method for Manufacturing Secondary Battery (18024540)

Inventor Won Pill Hwang

Secondary Battery (18029270)

Inventor Soo-Ji Hwang

BATTERY PACK WITH STRUCTURE FOR REDUCING THE TEMPERATURE OF VENTING GAS AND PREVENTING THE EMISSION OF SPARK (18020560)

Inventor Doo-Han YOON

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18022702)

Inventor Kwangmo KIM

BATTERY MODULE, AND BATTERY PACK AND VEHICLE COMPRISING THE SAME (18024292)

Inventor Ju-Hwan SHIN

BATTERY MODULE WITH REINFORCED SAFETY (18128576)

Inventor Sung-Hwan JANG

Secondary Battery Including Gas Discharge Portion Configured to Discharge Gas and Secondary Battery Manufacturing Method (18011735)

Inventor Hun Hee Lim

LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF (18021203)

Inventor Jun Soo PARK

Connector Including Cooling Fan (18020460)

Inventor Sung-Gyu Kim