LG Energy Solution, Ltd. patent applications published on December 14th, 2023

Patent applications for LG Energy Solution, Ltd. on December 14th, 2023

Pressing Apparatus Including Fluid and Electrode and Electrode Assembly Manufacturing Method Using the Same (17914102)

Main Inventor

Byeong Kyu Lee

Brief explanation

The present invention is a pressing apparatus and method that can uniformly press an object using a pressure adjustment portion containing a fluid, regardless of the object's shape.

• The invention is a pressing apparatus that can apply uniform pressure to objects of different shapes.
• The apparatus includes a pressure adjustment portion that contains a fluid, allowing for precise pressure control.
• The pressing method involves using the pressing apparatus to uniformly press an object.
• The pressure adjustment portion ensures that the object is pressed evenly, regardless of its shape.

Potential Applications

• Manufacturing processes that require uniform pressing of objects.
• Printing and embossing industries where consistent pressure is needed.
• Medical applications such as compression therapy or orthopedic devices.
• Food processing where uniform pressing is necessary for consistent results.

Problems Solved

• Uneven pressing of objects with irregular shapes.
• Lack of precise pressure control in pressing operations.
• Inability to apply uniform pressure to objects of different sizes and shapes.

Benefits

• Ensures uniform pressing of objects, resulting in consistent quality.
• Provides precise pressure control for accurate and reliable results.
• Versatile and adaptable to objects of different shapes and sizes.
• Reduces the need for manual adjustments, saving time and effort.

Abstract

The present invention relates to a pressing apparatus capable of uniformly pressing an object to be pressed using a pressure adjustment portion having a fluid contained therein irrespective of the shape of the object and a pressing method using the same.

BATTERY MODULE TRANSFER JIG (18035823)

Main Inventor

Tae Nam KIM

Brief explanation

The patent application describes a battery module transfer jig that allows for easy and safe separation of a battery module from a battery module rack. The jig includes a base plate with a transfer roller for horizontal movement of the battery module, guide rollers on the sides of the base plate, a winch for separating the battery module from the rack, and a mounting unit on the lower part of the base plate.

• The transfer roller facilitates the horizontal transfer of the battery module.
• The guide rollers ensure smooth movement of the battery module.
• The winch is used to separate the battery module from the rack.
• The mounting unit provides stability and support to the jig.

Potential applications of this technology:

• Battery manufacturing facilities
• Electric vehicle production lines
• Energy storage system installations

Problems solved by this technology:

• Difficulties in separating battery modules from racks
• Safety concerns during the separation process
• Time-consuming and labor-intensive manual handling of battery modules

Benefits of this technology:

• Improved work safety
• Easy and efficient separation of battery modules
• Reduced risk of damage to battery modules
• Increased productivity and workflow efficiency

Abstract

Discussed is a battery module transfer jig including a base plate having mounted thereto a transfer roller configured to transfer a battery module in a horizontal direction, a plurality of guide rollers disposed at outer peripheries of opposite sides of the base plate, a winch on the base plate and configured to be coupled to the battery module that is loaded in a battery module rack, the winch further being configured to separate the battery module from the battery module rack, and a mounting unit coupled to a lower part of the base plate, wherein the battery module may be easily and safely separated from the battery module rack, whereby it is possible to improve work safety.

Electrode Drying System (18033602)

Main Inventor

Young-Kuk Ko

Brief explanation

The abstract describes an electrode drying system for drying a solvent in an electrode active material slurry on an electrode sheet. The system includes a drying oven, an air supply member, and a ventilation member. 

• The drying oven is designed to dry the solvent in the electrode active material slurry on an electrode sheet.
• The air supply member supplies air to the drying oven.
• The ventilation member discharges air from the drying oven.
• Part of the discharged air is reintroduced into the air supply member.

Potential Applications:

• This electrode drying system can be used in the manufacturing of various types of batteries, such as lithium-ion batteries or fuel cells.
• It can also be applied in the production of supercapacitors or other energy storage devices that require electrode drying.

Problems Solved:

• The electrode drying system solves the problem of efficiently drying the solvent in an electrode active material slurry on an electrode sheet.
• It ensures uniform drying and prevents the formation of defects or inconsistencies in the electrode.

Benefits:

• The system improves the drying process by recycling part of the discharged air, reducing energy consumption.
• It enhances the overall efficiency of the electrode drying process, leading to cost savings in battery manufacturing.
• The system helps to maintain the quality and performance of the electrodes, resulting in improved battery performance and reliability.

Abstract

An electrode drying system includes a drying oven configured to dry a solvent in an electrode active material slurry on an electrode sheet in which the electrode active material slurry is applied to a current collector, an air supply member configured to supply air to the drying oven, and a ventilation member configured to discharge air from the drying oven. At least part of the air discharged from the ventilation member is introduced into the air supply member again.

NEGATIVE ELECTRODE FOR LITHIUM METAL BATTERY, AND LITHIUM METAL BATTERY COMPRISING SAME (18033013)

Main Inventor

Sun Mi JIN

Brief explanation

The present disclosure is about a negative electrode for a lithium metal battery. It includes a porous substrate, a carbon coating layer on the substrate's surface, and a lithium metal layer on the carbon coating layer. The carbon coating layer consists of carbon particles with a plate-like structure. The patent application also mentions a lithium metal battery that incorporates this electrode.

• The negative electrode for a lithium metal battery has a porous substrate.
• A carbon coating layer is applied to the surface of the porous substrate.
• On top of the carbon coating layer, a lithium metal layer is positioned.
• The carbon coating layer is made up of carbon particles with a plate-like structure.
• The patent application also covers a lithium metal battery that uses this electrode.

Potential Applications

This technology can be applied in various fields, including:

• Electric vehicles
• Portable electronic devices
• Renewable energy storage systems
• Grid-scale energy storage

Problems Solved

The negative electrode addresses several challenges faced by lithium metal batteries, such as:

• Formation of dendrites that can cause short circuits and reduce battery life.
• Limited cycle life due to the degradation of the electrode materials.
• Low energy density compared to other battery technologies.

Benefits

The use of this negative electrode offers several advantages:

• Improved battery performance and cycle life.
• Enhanced safety by reducing the risk of short circuits.
• Higher energy density, leading to longer-lasting batteries.
• Compatibility with various applications, including electric vehicles and renewable energy storage.

Abstract

The present disclosure relates to a negative electrode for a lithium metal battery comprising a porous substrate; a carbon coating layer formed on the surface of the porous substrate; and a lithium metal layer positioned on the carbon coating layer, wherein the carbon coating layer comprises carbon particles having a plate-like structure, and a lithium metal battery comprising the same.

Positive Electrode for Lithium Secondary Battery and Lithium Secondary Battery Including the Same (18034991)

Main Inventor

Hyeong II Kim

Brief explanation

The abstract describes a positive electrode for a lithium secondary battery that includes a positive electrode active material layer, a conductive agent, and a binder. The positive electrode active material is represented by Formula 1 and has a minimum crystalline size. The lithium secondary battery includes this positive electrode.

• The positive electrode for a lithium secondary battery includes a specific positive electrode active material, conductive agent, and binder.
• The positive electrode active material has a minimum crystalline size.
• The lithium secondary battery incorporates this positive electrode.

Potential Applications

• Lithium secondary batteries
• Energy storage systems
• Portable electronic devices

Problems Solved

• Enhancing the performance of lithium secondary batteries
• Improving the energy density and capacity of batteries
• Increasing the lifespan and stability of batteries

Benefits

• Higher energy density and capacity of lithium secondary batteries
• Improved performance and efficiency of energy storage systems
• Longer lifespan and enhanced stability of batteries

Abstract

A positive electrode for a lithium secondary battery includes a positive electrode active material layer including: a first positive electrode active material represented by Formula 1 and having a crystalline size of  nm or more; a conductive agent including single-walled carbon nanotubes (SWCNTs); and a binder. A lithium secondary battery includes the positive electrode.

ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME (18033164)

Main Inventor

Ki Tae KIM

Brief explanation

==Abstract==

The abstract describes an electrode for a lithium secondary battery, which includes an active layer consisting of an electrode active material, an electrically conductive material, and a binder. The binder is fiberized in multiple directions.

Patent/Innovation Explanation

• The electrode is designed for use in a lithium secondary battery.
• It includes an active layer that consists of three components: an electrode active material, an electrically conductive material, and a binder.
• The binder is fiberized in multiple directions, which enhances its performance and functionality within the electrode.

Potential Applications

• Lithium secondary batteries used in various electronic devices, such as smartphones, laptops, and electric vehicles.
• Energy storage systems for renewable energy sources, such as solar and wind power.

Problems Solved

• Enhances the performance and functionality of the electrode in a lithium secondary battery.
• Improves the overall efficiency and lifespan of the battery.
• Provides better stability and reliability during charging and discharging cycles.

Benefits

• Increased energy density and capacity of lithium secondary batteries.
• Longer battery life and improved performance.
• Enhanced safety and stability during operation.
• Potential for faster charging and discharging rates.

Abstract

An electrode for a lithium secondary battery. The electrode includes an active layer. The active layer includes an electrode active material, an electrically conductive material, and a binder. The binder is fiberized in multiple directions.

SECONDARY BATTERY COMPRISING ELECTRODE TAB PROVIDED WITH INSULATION COATING LAYER (18239592)

Main Inventor

Joo-Sung LEE

Brief explanation

The patent application describes a secondary battery with an improved insulation coating layer on the electrode tab, which prevents detachment and maintains excellent insulation to minimize internal short-circuits and ensure safety.

• The secondary battery includes an electrode assembly with an electrode tab extended from an electrode current collector.
• The electrode tab is coated with an insulation coating layer containing an inorganic filler and a binder.
• The binder has an electrolyte uptake between 0% and 50%, determined by a specific method.
• The insulation coating layer with a binder having low electrolyte uptake improves adhesion and prevents detachment from the electrode tab.
• This ensures an excellent insulation state in the secondary battery, minimizing the risk of internal short-circuits and enhancing safety.

Potential Applications

• This technology can be applied in various secondary battery systems, such as lithium-ion batteries, nickel-metal hydride batteries, and others.
• It can be used in portable electronic devices, electric vehicles, renewable energy storage systems, and other applications that rely on secondary batteries.

Problems Solved

• Detachment of the insulation coating layer from the electrode tab can lead to internal short-circuits in secondary batteries, posing safety risks.
• The improved insulation coating layer with a binder having low electrolyte uptake solves this problem by enhancing adhesion and preventing detachment.

Benefits

• Enhanced safety: The improved insulation coating layer minimizes the risk of internal short-circuits, ensuring the safety of the secondary battery.
• Improved adhesion: The binder with low electrolyte uptake improves the adhesion of the insulation coating layer, preventing detachment from the electrode tab.
• Maintained insulation state: The insulation coating layer maintains an excellent insulation state, preventing electrical leakage and ensuring the proper functioning of the secondary battery.

Abstract

Provided is a secondary battery which includes an electrode assembly having an electrode tab extended from an electrode current collector, wherein the electrode tab is provided with an insulation coating layer containing an inorganic filler and a binder, the binder has an electrolyte uptake more than 0% and less than 50%, and the electrolyte uptake is determined by a predetermined method. In the secondary battery according to the present disclosure, the insulation coating layer provided in the electrode tab includes a binder having a low electrolyte uptake, and thus the insulation coating layer has improved adhesion and is prevented from detachment from the electrode tab. As a result, it is possible to maintain an excellent insulation state and to minimize an internal short-circuit in a secondary battery, thereby ensuring safety.

Unit Cell and Method and Apparatus for Manufacturing A Unit Cell (18033508)

Main Inventor

Dong Hyeuk Park

Brief explanation

The patent application describes an apparatus for manufacturing a unit cell by cutting separators between sets of adjacent electrodes. The apparatus includes a lower block, an upper block, and a cutter.

• The lower and upper separators continuously move in a longitudinal direction during the manufacturing process.
• The electrodes are stacked between the separators and on the upper separator.
• The lower block is positioned under the lower separator, and the upper block is vertically aligned with the lower block above the upper separator.
• The cutter is installed at the lower end of the apparatus and can access both the inside and outside of the separators.
• The upper block descends to press the separators against the surface of the lower block.
• The upper and/or lower blocks can be heated to a predetermined temperature to thermally fuse the pressed points of the separators.
• The cutter protrudes from the upper block to cut the separators at the pressed points.

Potential applications of this technology:

• Manufacturing unit cells for various electronic devices, such as batteries or fuel cells.
• Mass production of unit cells for commercial use in energy storage systems or electric vehicles.

Problems solved by this technology:

• Efficient and precise cutting of separators between electrodes in the manufacturing process.
• Ensuring proper alignment and fusion of the separators for optimal performance of the unit cells.

Benefits of this technology:

• Increased production efficiency due to continuous movement of the separators.
• Improved accuracy and consistency in cutting and fusing the separators.
• Enhanced performance and reliability of the manufactured unit cells.

Abstract

An apparatus for manufacturing a unit cell cuts lower and upper separators between sets of adjacent electrodes. In a state of a process of manufacturing the unit cell, the lower and upper separators continuously move in a longitudinal direction; and the electrodes are stacked between the separators and on the upper separator, respectively. The apparatus includes a lower block disposed under the lower separator and an upper block vertically aligned with the lower block above the upper separator. A lower end of a cutter is installed for access to the inside and outside. The upper block descends to press the separators to a surface of the lower block. One or both of the upper and lower blocks is heated to a predetermined temperature to thermally fuse pressed points of the separators. The cutter protrudes from the upper block to perform cutting at points at which the separators are pressed.

BIPOLAR ALL-SOLID-STATE BATTERY INCLUDING POROUS SUPPORT LAYER (18033764)

Main Inventor

Jung Pil LEE

Brief explanation

The abstract describes a patent application for a bipolar all-solid-state battery with a porous support layer. The battery consists of multiple unit cells connected in series, each containing a positive electrode, a solid electrolyte, and a negative electrode. The first porous support layer is provided at the interface between the unit cells.

• The patent application is for a bipolar all-solid-state battery with a porous support layer.
• The battery includes multiple unit cells connected in series.
• Each unit cell contains a positive electrode, a solid electrolyte, and a negative electrode.
• A first porous support layer is provided at the interface between the unit cells.

Potential Applications

• Electric vehicles
• Portable electronics
• Renewable energy storage systems

Problems Solved

• Improved battery performance and efficiency
• Enhanced stability and safety
• Increased energy density

Benefits

• Longer battery life
• Faster charging times
• Higher energy storage capacity
• Safer operation

Abstract

A bipolar all-solid-state battery including a porous support layer is provided. The bipolar all-solid-state battery comprises (a) two or more unit cells each including a positive electrode, a solid electrolyte, and a negative electrode being connected to each other in series and a first porous support layer provided at an interface therebetween; or (b) two or more unit cells each including a positive electrode, a solid electrolyte, and a second porous support layer being connected to each other in series.

Battery Apparatus, Battery Management System and Precharging Method (18033008)

Main Inventor

Hangon Park

Brief explanation

The patent application describes a battery apparatus with two precharge switches connected to a capacitor in an external device. 

• The first precharge switch is connected to a terminal of the first battery pack, and the second precharge switch is connected to a terminal of the second battery pack.
• A first precharge control circuit controls the operation of the first precharge switch based on the voltage difference between the first battery pack and the capacitor.
• A second precharge control circuit controls the operation of the second precharge switch based on the voltage difference between the second battery pack and the capacitor.
• A processor transfers control signals to the precharge control circuits to control the operation of the precharge switches.

Potential applications of this technology:

• Electric vehicles: This battery apparatus can be used in electric vehicles to efficiently precharge the batteries before connecting them to the main power system.
• Renewable energy storage: The technology can be applied in renewable energy storage systems to precharge the batteries before connecting them to the grid.
• Portable electronic devices: The battery apparatus can be used in portable electronic devices to improve the efficiency and safety of battery charging.

Problems solved by this technology:

• Efficient precharging: The precharge switches and control circuits ensure that the batteries are properly precharged before connecting them to the external device, improving overall battery performance.
• Voltage regulation: The voltage difference between the batteries and the capacitor is monitored and controlled, preventing any potential damage to the batteries or the external device.
• Safety: The precharge control circuits ensure that the precharging process is done safely, minimizing the risk of electrical hazards.

Benefits of this technology:

• Improved battery performance: Proper precharging ensures that the batteries are at the optimal voltage level, enhancing their overall performance and lifespan.
• Enhanced safety: The control circuits prevent any voltage imbalances or potential damage to the batteries or the external device, ensuring safe operation.
• Efficient charging: The precharge switches and control circuits optimize the charging process, reducing energy waste and improving overall charging efficiency.

Abstract

In a battery apparatus, a first precharge switch is connected between a terminal of a first battery pack and a capacitor of an external apparatus, and a second precharge switch is connected between a terminal of a second battery pack and the capacitor. A first precharge control circuit controls an operation of the first precharge switch based on a difference between a voltage of the first battery pack and a voltage of the capacitor, and a second precharge control circuit controls an operation of the second precharge switch based on a difference between a voltage of the second battery pack and the voltage of the capacitor. A processor transfers a first control signal for controlling the first precharge switch to the first precharge control circuit, and transfers a second control signal for controlling the second precharge switch to the second precharge control circuit.

BATTERY PROTECTION METHODS AND SYSTEMS (18034307)

Main Inventor

Jae Hyung KIM

Brief explanation

The present invention is a battery protection method and system that aims to prevent safety issues such as ignition or heating. It introduces a method of classifying protection operations based on the likelihood of these safety issues occurring. Additionally, the invention implements protection algorithms corresponding to each classification while maintaining the existing protection operation/release condition.

• The invention includes a method and system for permanently blocking battery operation if the battery bank continues to experience overvoltage even after the initial action.
• The invention checks for overvoltage in a specific battery bank and takes primary measures to prevent overcharging.
• The invention aims to prevent safety issues in advance by implementing proactive protection measures.

Potential applications of this technology:

• Electric vehicles: This battery protection method and system can be applied to electric vehicles to ensure the safety of the battery and prevent potential hazards.
• Energy storage systems: Battery protection is crucial in energy storage systems to prevent accidents and ensure the longevity of the batteries.
• Portable electronic devices: This technology can be implemented in smartphones, laptops, and other portable electronic devices to enhance battery safety.

Problems solved by this technology:

• Safety concerns: The invention addresses safety issues such as ignition or heating that can occur in batteries.
• Overvoltage protection: The method and system prevent overvoltage in battery banks, which can lead to battery damage or safety hazards.
• Proactive measures: By implementing protection algorithms based on the likelihood of safety issues, the invention takes proactive measures to prevent accidents.

Benefits of this technology:

• Enhanced battery safety: The battery protection method and system provide an additional layer of safety to prevent accidents and ensure the safe operation of batteries.
• Extended battery lifespan: By preventing overvoltage and other safety issues, the invention helps prolong the lifespan of batteries.
• Proactive protection: The classification of protection operations and implementation of corresponding algorithms allow for proactive measures to prevent safety issues before they occur.

Abstract

The present invention relates to a battery protection method and system, and relates to a method of classifying protection operations based on the possibility of occurrence of safety issues such as ignition/heating, and additionally implementing protection algorithms corresponding to each while maintaining the existing protection operation/release condition, and relates to a method and system for protecting a battery in a way to prevent safety issues in advance by permanently blocking battery operation if the over voltage of the battery bank continues to occur even after the first action before reaching the cell unbalance protection operation condition, check whether an over voltage occurs in a specific battery bank, and take the primary measures to prevent overcharge of the battery bank.

BATTERY SYSTEM HAVING A BATTERY MODULE (18239175)

Main Inventor

Atish Bharat Dahitule

Brief explanation

The abstract describes a battery system that includes a battery module with retention housings to hold a battery cell retention frame. The retention housings have inlet and outlet ports for fluid cooling or can be air cooled. The retention housings also provide improved structural integrity to the battery module.

• The battery system utilizes retention housings to hold a battery cell retention frame.
• The retention housings have inlet and outlet ports for fluid cooling or can be air cooled.
• The battery cell retention frame can cool cylindrical battery cells.
• The retention housings improve the structural integrity of the battery module.

Potential Applications

This technology can be applied in various industries and applications, including:

• Electric vehicles
• Energy storage systems
• Portable electronic devices
• Renewable energy systems

Problems Solved

The battery system addresses the following problems:

• Overheating of battery cells
• Structural integrity of the battery module
• Cooling efficiency in battery systems

Benefits

The benefits of this technology include:

• Improved cooling of battery cells
• Enhanced structural integrity of the battery module
• Versatility in cooling options (fluid or air cooling)
• Potential for increased battery lifespan and performance

Abstract

A battery system includes a battery module that utilizes the first and second retention housings to hold a battery cell retention frame therein that can be either air cooled or fluid cooled. In particular, the first and second retention housings have an inlet port and an outlet port, respectively, for routing fluid through the battery cell retention frame for cooling cylindrical battery cells thereon. Alternately, the battery cell retention frame can be air cooled for cooling the cylindrical battery cells. Also, the first and second retention housings provide improved structural integrity to the battery module.

Battery Cell, and Battery Module, Battery Pack and Vehicle Including the Same (17899858)

Main Inventor

Seung-Byung Lee

Brief explanation

The abstract describes a patent application for a battery cell with enhanced safety and improved cooling performance. The battery cell includes an electrode assembly, a cell case, an electrode lead, and a tab protection module.

• The electrode assembly consists of a cell body and an electrode tab attached to one side of the cell body.
• The cell case is designed to accommodate the electrode assembly.
• An electrode lead is drawn out of the cell case and connected to the electrode assembly through the electrode tab.
• A tab protection module is housed within the cell case and covers a portion of the electrode tab.
• The tab protection module includes a heat dissipating material that helps to discharge heat to the outside.

Potential applications of this technology:

• Electric vehicles
• Portable electronic devices
• Renewable energy storage systems

Problems solved by this technology:

• Enhanced safety by providing a protective covering for the electrode tab
• Improved cooling performance by incorporating a heat dissipating material

Benefits of this technology:

• Reduced risk of thermal runaway and other safety hazards
• Increased efficiency and lifespan of the battery cell
• Enhanced overall performance of battery modules and packs

Abstract

A battery cell having an electrode tab with enhanced safety and improved cooling performance, and a battery module, a battery pack and a vehicle including the same is provided. The battery cell includes an electrode assembly including a cell body and an electrode tab provided to at least one side of the cell body, a cell case configured to accommodate the electrode assembly, an electrode lead drawn out of the cell case and connected to the electrode assembly through the electrode tab at a coupling portion, and a tab protection module accommodated in the cell case and covering at least a part of the electrode tab, the tab protection module including a heat dissipating material configured to discharge heat to the outside through at least a part thereof.

Battery Pack and Device Including the Same (18033453)

Main Inventor

Byung Do Jang

Brief explanation

The abstract describes a battery pack with a battery module, a module frame, a heat sink, a pack refrigerant pipe, a cooling port, and a cooling connector. The cooling port has an inclination part with a narrowing width towards the cooling connector, and a sealing member is located between the inclination part and the cooling connector.

• The battery pack includes a battery module with stacked battery cells, a module frame, and a heat sink.
• A pack refrigerant pipe allows refrigerant to flow through the battery pack.
• The cooling port is connected to a through hole in the heat sink.
• The cooling connector connects the pack refrigerant pipe and the cooling port.
• The cooling port has an inclination part with a narrowing width towards the cooling connector.
• A ring-shaped sealing member is located between the inclination part and the cooling connector.

Potential Applications

• Electric vehicles: The battery pack can be used in electric vehicles to efficiently cool the battery cells and prevent overheating.
• Energy storage systems: The technology can be applied in energy storage systems to maintain optimal temperature conditions for the battery cells.

Problems Solved

• Overheating: The cooling system in the battery pack helps prevent overheating of the battery cells, which can improve their performance and lifespan.
• Efficient cooling: The design of the cooling port with the narrowing width helps to enhance the efficiency of the cooling process.

Benefits

• Improved battery performance: By preventing overheating, the battery pack can help maintain the performance and longevity of the battery cells.
• Enhanced safety: Efficient cooling can reduce the risk of thermal runaway and other safety hazards associated with overheating batteries.
• Increased energy efficiency: The cooling system allows for better heat dissipation, which can improve the overall energy efficiency of the battery pack.

Abstract

A battery pack according to one embodiment of the present disclosure includes a battery module that includes a battery cell stack in which a plurality of battery cells are stacked, a module frame that houses the battery cell stack and a heat sink located below the module frame; a pack refrigerant pipe through which a refrigerant flows; a cooling port that is connected to a through hole formed in the heat sink; and a cooling connector that connects the pack refrigerant pipe and the cooling port, wherein the cooling port includes an inclination part formed on an outer peripheral surface of the cooling port, wherein a width in a horizontal direction of the inclination part becomes narrowed as it goes in the direction in which the cooling connector is located, and wherein a ring-shaped sealing member is located between the inclination part and the cooling connector.

Battery Module, and Battery Pack and Vehicle Including the Same (18034950)

Main Inventor

Eun-Ah Ju

Brief explanation

The abstract describes a battery module that includes a sub module with multiple battery cells and a cooling fin between them. It also has a module housing, a front sealing plate with a cooling liquid inlet, a rear sealing plate with a cooling liquid outlet, and a sensing assembly to measure battery cell voltage.

• The battery module includes a sub module with multiple battery cells and a cooling fin between them.
• It has a module housing that can accommodate the sub module.
• A front sealing plate covers an opening on one side of the module housing and has a cooling liquid inlet.
• A rear sealing plate covers an opening on the other side of the module housing and has a cooling liquid outlet.
• A sensing assembly is included to measure the voltage of the battery cells.

Potential applications of this technology:

• Electric vehicles: This battery module can be used in electric vehicles to provide power and cooling for the battery cells.
• Renewable energy storage: The battery module can be used in renewable energy storage systems to store and release energy efficiently.
• Portable electronics: This technology can be applied to portable electronic devices to improve battery performance and cooling.

Problems solved by this technology:

• Overheating: The cooling fin and the cooling liquid inlet/outlet help dissipate heat and prevent overheating of the battery cells.
• Voltage monitoring: The sensing assembly allows for accurate measurement of the battery cell voltage, which is crucial for monitoring battery health and performance.

Benefits of this technology:

• Improved battery performance: The cooling system helps maintain optimal operating temperatures, which can enhance the overall performance and lifespan of the battery cells.
• Enhanced safety: By preventing overheating, this technology reduces the risk of thermal runaway and potential battery failures.
• Accurate voltage monitoring: The sensing assembly ensures accurate voltage measurement, enabling better battery management and maintenance.

Abstract

A battery module includes a sub module including a cell stack assembly having a plurality of battery cells and a cooling fin interposed between adjacent battery cells; a module housing configured to accommodate the sub module; a front sealing plate configured to cover an opening at one longitudinal side of the module housing and having a cooling liquid inlet; a rear sealing plate configured to cover an opening at the other longitudinal side of the module housing and having a cooling liquid outlet; and a sensing assembly configured to sense voltage of the battery cell.

Pouch Film for Secondary Battery and Manufacturing Method Thereof (18033628)

Main Inventor

Yong Kim

Brief explanation

The abstract describes a pouch film for a secondary battery and a method for manufacturing it. The film includes a stretchable auxiliary layer with multiple layers having different elongation rates, which improves the moldability of the pouch and reduces the risk of breakage. This leads to reduced defect rates and manufacturing costs.

• The pouch film for a secondary battery includes a stretchable auxiliary layer with multiple layers.
• The layers in the auxiliary layer have different elongation rates.
• The stress at the interface of each layer is relieved, improving the moldability of the pouch.
• The risk of breakage of the pouch is significantly reduced.
• Defect rates in the pouch manufacturing process are reduced.
• Manufacturing costs are reduced as a result.

Potential Applications

This technology can be applied in the manufacturing of pouch films for secondary batteries used in various electronic devices, such as smartphones, laptops, tablets, and electric vehicles.

Problems Solved

1. Improved moldability: The stretchable auxiliary layer with multiple layers and different elongation rates relieves stress at the interface, enhancing the moldability of the pouch. 2. Reduced risk of breakage: The design of the pouch film significantly reduces the risk of breakage, ensuring the integrity and durability of the secondary battery. 3. Reduced defect rates: By improving the moldability and reducing the risk of breakage, the technology helps to reduce defect rates in the pouch manufacturing process.

Benefits

1. Cost reduction: The reduced defect rates and improved manufacturing process lead to lower manufacturing costs. 2. Enhanced product reliability: The reduced risk of breakage ensures the reliability and longevity of the secondary battery. 3. Improved manufacturing efficiency: The improved moldability of the pouch film streamlines the manufacturing process, increasing efficiency.

Abstract

A pouch film for a secondary battery and a method for manufacturing the same. In some embodiments, the pouch film includes a stretchable auxiliary layer that is a multi-layered structure comprising a plurality of layers, wherein layers in the plurality of layers have different elongation rates. The stress at the interface of each layer is relieved and the moldability of a pouch is improved. The risk of breakage of a pouch is significantly reduced and defect rates are reduced in a pouch manufacturing process, thereby reducing manufacturing costs.

SECONDARY BATTERY, BATTERY PACK, AND AUTOMOBILE (18035706)

Main Inventor

Minki JO

Brief explanation

The abstract describes a secondary battery design that includes an electrode assembly, a battery can, a top cap, a conductive washer, and an insulative member. The top cap is connected to the first electrode tab, while the battery can is connected to the second electrode tab. The conductive washer is connected to the battery can and covers the opening portion of the battery can. An insulative member is placed between the top cap, battery can, and conductive washer to provide electrical insulation.

• The secondary battery design includes an electrode assembly, battery can, top cap, conductive washer, and insulative member.
• The top cap is connected to the first electrode tab, while the battery can is connected to the second electrode tab.
• A conductive washer is placed between the battery can and the opening portion, covering it.
• An insulative member is provided between the top cap, battery can, and conductive washer to ensure electrical insulation.
• The top cap has two surfaces, with the second surface having a protruding portion exposed through a hole in the conductive washer.

Potential applications of this technology:

• Secondary batteries in various electronic devices such as smartphones, laptops, and tablets.
• Energy storage systems for renewable energy sources like solar and wind power.
• Electric vehicles and hybrid vehicles.

Problems solved by this technology:

• Provides electrical insulation between different components of the secondary battery, reducing the risk of short circuits and other electrical issues.
• Ensures proper electrical connection between the electrode assembly, battery can, top cap, and conductive washer.
• Protects the battery from external elements and damage.

Benefits of this technology:

• Improved safety and reliability of secondary batteries.
• Enhanced performance and efficiency of the battery system.
• Simplified design and assembly process for secondary batteries.

Abstract

A secondary battery includes an electrode assembly having a first electrode tab and a second electrode tab, a battery can electrically connected to the second electrode tab and having an opening portion accommodating the electrode assembly, a top cap covering the opening portion of the battery can and electrically connected to the first electrode tab, a conductive washer electrically connected to the battery can and adjoining a peripheral portion of the opening portion, and an insulative member provided between the top cap and the battery can and the conductive washer electrically connected to the battery can, the insulative member being configured to electrically insulate the top cap and at least one of the battery can and the conductive washer. The top cap includes first and second surfaces facing each other, the second surface having a protruding portion exposed through a hole formed in a central portion of the conductive washer.

Method of Sealing Pouch-Type Battery Case and Pouch-Type Secondary Battery (18200104)

Main Inventor

Myung Bin Kwon

Brief explanation

The present disclosure describes a method for sealing a pouch-type battery case consisting of two case units. The case units have accommodation portions and extensions that partially surround the accommodation portions. The electrode assembly is placed between the accommodation portions of the case units. The method involves a bending operation, a first sealing operation, and a second sealing operation. 

• The first and second case units have accommodation portions and extensions.
• The electrode assembly is placed between the accommodation portions of the case units.
• The first sealing operation bonds the first regions or second regions of the extensions adjacent to one side or the other.
• The second sealing operation bonds the seventh or eighth regions of the extensions positioned at the one side or the other side of the electrode assembly facing each other.

Potential applications of this technology:

• Pouch-type battery manufacturing
• Battery assembly in electronic devices
• Energy storage systems

Problems solved by this technology:

• Ensures a secure and reliable seal for the battery case
• Prevents leakage of electrolyte or other battery components
• Provides structural integrity to the battery assembly

Benefits of this technology:

• Simplifies the sealing process for pouch-type battery cases
• Enhances the overall performance and safety of the battery
• Reduces the risk of battery failure or damage due to improper sealing.

Abstract

The present disclosure provides a method of sealing a pouch-type battery case including first and second case units. An electrode assembly accommodated in the first and second case units. The method including a bending operation, a first sealing operation, and a second sealing operation. Each of the first and second case units including an accommodation portion and an extension at least partially surrounding the accommodation portion. The electrode assembly being disposed between the accommodation portions of the first and second case units. First regions or second regions of the extensions of the first and second case units adjacent to an end portion of one side or the other are bonded. In the second sealing operation, seventh or eighth regions of the extensions of the first and second case units positioned at the one side or the other side of the electrode assembly facing each other are bonded.

Battery Cell, and Battery Module, Battery Pack and Vehicle Including the Same (17969322)

Main Inventor

Kyoung-Soon Yoon

Brief explanation

The patent application describes a battery cell that enhances safety and controls internal pressure. It also includes a battery module, a battery pack, and a vehicle incorporating the same.

• The battery cell consists of an electrode assembly with a cell body and an electrode tab attached to one side.
• A cell case is designed to accommodate the electrode assembly.
• An electrode lead is connected to the electrode tab and extends from the cell case.
• A tab protection module is housed within the cell case and covers a portion of the electrode tab.
• A venting module is connected to the tab protection module and releases venting gas from the cell case.

Potential Applications

• Electric vehicles
• Portable electronic devices
• Renewable energy storage systems

Problems Solved

• Reinforces safety of the electrode tab
• Controls internal pressure of the battery cell
• Prevents damage to the electrode tab

Benefits

• Enhanced safety features
• Improved control over internal pressure
• Protection against damage or failure of the electrode tab

Abstract

Disclosed is a battery cell capable of reinforcing safety of an electrode tab and controlling an internal pressure of the battery cell, and a battery module, a battery pack and a vehicle including the same. The battery cell includes an electrode assembly including a cell body and an electrode tab coupled to at least one side of the cell body, a cell case configured to accommodate the electrode assembly therein, an electrode lead coupled to the electrode tab and extending from the cell case, a tab protection module accommodated in the cell case and configured to cover at least a portion of the electrode tab, and a venting module coupled to the tab protection module and configured discharge a venting gas out of the cell case.

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18035862)

Main Inventor

Kwangmo KIM

Brief explanation

The patent application describes a battery module that includes a stack of battery cells, a module frame, and an end plate. The module frame has a venting part with an inlet port and an outlet port, which is covered by a barrier layer.

• The battery module includes a stack of battery cells that are stacked in one direction.
• A module frame houses the battery cell stack and has an inner and outer surface.
• An end plate is coupled with the module frame and covers the front or rear surface of the battery cell stack.
• The module frame is formed with at least one venting part in the form of a hole.
• The venting part has an inlet port formed on the inner surface and an outlet port formed on the outer surface.
• The hole of the venting part is covered by a barrier layer.

Potential Applications

• Electric vehicles: The battery module can be used in electric vehicles to provide power for propulsion.
• Energy storage systems: The battery module can be utilized in energy storage systems to store and release electricity as needed.
• Portable electronics: The compact and efficient battery module can be integrated into portable electronic devices such as smartphones and laptops.

Problems Solved

• Thermal management: The venting part with the barrier layer helps in dissipating heat generated during battery operation, preventing overheating and improving safety.
• Protection against external elements: The barrier layer covering the venting part prevents dust, moisture, and other contaminants from entering the battery module, ensuring its longevity and reliability.

Benefits

• Improved safety: The venting part with the barrier layer helps in preventing thermal runaway and potential battery failures.
• Enhanced performance: The efficient thermal management provided by the venting part allows the battery cells to operate at optimal temperatures, improving their performance and lifespan.
• Compact design: The battery module's stack configuration and the integration of the venting part within the module frame result in a compact and space-saving design.

Abstract

A battery module includes a battery cell stack in which a plurality of battery cells are stacked in one direction, a module frame that houses the battery cell stack and has an inner surface and an outer surface, and an end plate that is coupled with the module frame and covers the front surface or the rear surface of the battery cell stack. The module frame is formed with at least one venting part in the form of a hole that defines an inlet port formed on the inner surface and an outlet port formed on the outer surface. The hole of the venting part is covered by a barrier layer.

Battery Cell and Battery Module Comprising Same (18036531)

Main Inventor

Dae-Woong Song

Brief explanation

The patent application describes a battery cell with a unique sealing structure and a gas discharge guiding unit. 

• The battery cell includes a battery case with an accommodation portion for an electrode assembly and a sealing portion that seals the outer periphery of the case.
• An electrode lead is electrically connected to an electrode tab in the assembly.
• A lead film is located at the sealing portion of the electrode lead.
• A gas discharge guiding unit is inserted in the lead film.
• The sealing portion consists of a first sealing portion on the gas discharge guiding unit and a second sealing portion on both sides of the first sealing portion.
• The width of the first sealing portion is smaller than the width of the second sealing portion, based on the protruding direction of the electrode lead.

Potential applications of this technology:

• Battery cells used in various electronic devices such as smartphones, laptops, and electric vehicles.
• Energy storage systems for renewable energy sources like solar and wind power.

Problems solved by this technology:

• Provides a reliable sealing structure for the battery cell, preventing gas leakage and improving safety.
• The gas discharge guiding unit helps to efficiently release any gas generated during battery operation.

Benefits of this technology:

• Enhanced safety due to improved sealing and gas discharge capabilities.
• Increased reliability and lifespan of the battery cell.
• Suitable for various applications and environments.

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; an electrode lead electrically connected to an electrode tab included in the electrode assembly; and a lead film located at a portion corresponding to the sealing portion in at least one of an upper portion and a lower portion of the electrode lead, wherein a gas discharge guiding unit is inserted in the lead film, the sealing portion includes a first sealing portion located on the gas discharge guiding unit and a second sealing portion located at both sides of the first sealing portion, and based on a protruding direction of the electrode lead, a width of the first sealing portion is smaller than a width of the second sealing portion.

POLYOLEFIN SEPARATOR FOR AN ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING SAME (18127299)

Main Inventor

Kyeong-Hui BAE

Brief explanation

The abstract describes a polyolefin separator for an electrochemical device. The separator has pores with specific size ranges and is made of a polyolefin resin with a specific polydispersity index (PDI). The separator also has certain mechanical properties, such as strain rate and recovery time.

• The polyolefin separator has an average pore size of 20 nm to 40 nm and a maximum pore size of 50 nm or less.
• The polyolefin resin used in the separator has a polydispersity index (PDI) ranging from 2.5 to 4.2.
• The separator has a strain rate of 25% or less when a tensile stress is applied at 60°C at 15 MPa for 60 seconds.
• The separator has a recovery time of 200 seconds or less to reach a recovery rate of 70% after removing a tensile stress applied at 70°C at 2 MPa for 180 seconds.

Potential applications of this technology:

• Lithium-ion batteries
• Fuel cells
• Capacitors

Problems solved by this technology:

• Enhances the performance and safety of electrochemical devices by providing a separator with specific pore size and mechanical properties.
• Improves the stability and efficiency of the electrochemical device by preventing the formation of dendrites and short circuits.

Benefits of this technology:

• Improved safety due to the prevention of dendrite formation and short circuits.
• Enhanced performance and efficiency of electrochemical devices.
• Longer lifespan of the electrochemical device.

Abstract

A polyolefin separator for an electrochemical device, the separator having a plurality of pores having an average pore size of 20 nm to 40 nm and a maximum pore size of 50 nm or less and including a polyolefin resin having a polydispersity index (PDI) of in a range of 2.5 to 4.2. The polyolefin separator may have a strain rate of 25% or less as measured when a tensile stress is applied at 60° C. at 15 MPa for 60 seconds, and the polyolefin separator may have a recovery time of 200 seconds or less to reach a recovery rate of 70% as measured after removing a tensile stress applied at 70° C. at 2 MPa for 180 seconds.

Battery Management Apparatus (18033601)

Main Inventor

Yeong Ju Kang

Brief explanation

The abstract describes a battery management apparatus that includes a shunt resistor connected to a battery and a voltage generation unit. The voltage generation unit generates two output values that have a difference corresponding to the voltage applied to the shunt resistor when charging over-current or discharging over-current flows in the shunt resistor.

• The battery management apparatus includes a shunt resistor connected to a battery.
• A voltage generation unit is configured to generate a first output value and a second output value.
• The difference between the first and second output values corresponds to the magnitude of the voltage applied to the shunt resistor.
• This difference is specifically related to charging over-current or discharging over-current flowing in the shunt resistor.

Potential applications of this technology:

• Battery management systems in electric vehicles.
• Energy storage systems for renewable energy sources.
• Portable electronic devices with rechargeable batteries.

Problems solved by this technology:

• Accurate monitoring of charging and discharging currents in a battery.
• Detection of over-current conditions in a battery system.

Benefits of this technology:

• Improved safety by detecting over-current conditions.
• Enhanced battery management and optimization.
• Accurate monitoring of battery performance and health.

Abstract

A battery management apparatus includes a shunt resistor connected to a battery and a voltage generation unit configured to generate a first output value and a second output value which have a difference therebetween corresponding to a magnitude of a voltage applied to the shunt resistor, in which the difference between the first output value and the second output value corresponds to the magnitude of the voltage applied to the shunt resistor when charging over-current or discharging over-current flows in the shunt resistor.

BATTERY PROTECTION CIRCUIT HAVING SECONDARY PROTECTION IC FUNCTION, METHOD FOR MEASURING VOLTAGE OF SERIES-CONNECTED CELLS USING SAME, AND BATTERY PROTECTION METHOD (18030415)

Main Inventor

Jong Kyung LEE

Brief explanation

The present invention is a battery protection circuit that incorporates a secondary protection IC function and a voltage measurement method for series-connected cells. It eliminates the need for a separate secondary protection IC by utilizing a switch and an MCU to measure the voltage of the cells.

• The invention is a battery protection circuit that includes a secondary protection IC function.
• The circuit utilizes a switch and an MCU to measure the voltage of series-connected cells.
• It eliminates the need for a separate secondary protection IC.
• The voltage measurement method is implemented using the switch and MCU.
• The invention simplifies the battery protection circuit design.

Potential applications of this technology:

• Battery-powered devices such as smartphones, tablets, and laptops.
• Electric vehicles and hybrid vehicles.
• Renewable energy storage systems.
• Portable electronic devices like cameras, drones, and wearables.

Problems solved by this technology:

• Eliminates the need for a separate secondary protection IC, reducing cost and complexity.
• Simplifies the design of battery protection circuits.
• Provides an efficient and reliable method for measuring the voltage of series-connected cells.

Benefits of this technology:

• Cost-effective solution by eliminating the need for a separate secondary protection IC.
• Simplifies the manufacturing process of battery-powered devices.
• Provides accurate voltage measurement for series-connected cells.
• Enhances the safety and performance of battery systems.

Abstract

The present invention relates to a battery protection circuit implementing a secondary protection IC function and a voltage measurement method of series-connected cells using the same, and more particularly, to a battery protection circuit that implements a secondary protection IC function that measures the voltage of series-connected cells using a switch and an MCU without a separate secondary protection IC, and a voltage measurement method for series-connected cells using the same.