LG ENERGY SOLUTION, LTD. patent applications published on November 30th, 2023

Patent applications for LG ENERGY SOLUTION, LTD. on November 30th, 2023

ULTRASONIC WELDING APPARATUS AND ULTRASONIC WELDING METHOD (18031508)

Main Inventor

Jin Yong LEE

Brief explanation

The patent application describes an ultrasonic welding apparatus that includes several components for efficient welding.

• The apparatus includes a pressing force measuring anvil with a sensor to measure the pressing force.
• A horn is installed above the pressing force measuring anvil and can move vertically. It presses the anvil when it moves downward.
• A horn down stroke adjustment part is included to adjust the down stroke of the horn. This ensures that the pressing force of the horn falls within a preset range.
• The apparatus also includes a welding anvil, which supports the welding target members to be welded by the horn. The position of the welding anvil is changed to align with the pressing force measuring anvil after the down stroke of the horn is adjusted.
• The purpose of this apparatus is to provide precise control over the pressing force of the horn during ultrasonic welding, resulting in more accurate and efficient welding processes.

Abstract

An ultrasonic welding apparatus includes: a pressing force measuring anvil including a pressing force measuring sensor; a horn which is installed to vertically move above the pressing force measuring anvil and presses the pressing force measuring anvil when moving downward; a horn down stroke adjustment part that adjusts a down stroke of the horn so that a pressing force of the horn is within a preset pressing force range; and a welding anvil on which welding target members to be welded by the horn are and supportable by the welding anvil and of which a position is changed to a position of the pressing force measuring anvil so that the welding anvil is positioned under the horn after the down stroke of the horn is adjusted to be within the preset pressing force range.

Notching Apparatus and Method of Electrode Substrate (18032405)

Main Inventor

Chang Bum Ahn

Brief explanation

- The patent application describes a notching apparatus and method for an electrode substrate.

- The purpose of the invention is to address the issue of contamination of an electrode current collector during the notching process. - The apparatus includes a die member and a punch member. - The electrode substrate is placed on the die member, and the punch member moves up and down towards the die member. - The punch member has a punch with one or more punching oil supply holes on its wall surface. - The punching oil is applied to the outer surface of the punch through these holes. - This helps prevent contamination of the electrode current collector by forming a barrier of punching oil. - Additionally, the holes in the punch allow for the discharge of any foreign objects generated during the punching process. - Overall, the invention aims to improve the efficiency and cleanliness of the notching process for electrode substrates.

Abstract

A notching apparatus and method for an electrode substrate can improve the conventional problem of contamination of an electrode current collector by forming a punching oil supply hole in a punch and applying the punching oil to a wall surface of the punch through the punching oil supply hole, and can also discharge foreign objects generated when punching an electrode through the hole formed in the punch. The notching apparatus for the electrode substrate includes a die member on which the electrode substrate is disposed; and a punch member provided to be spaced above the die member and provided with a punch that moves up and down toward the die member. A wall surface of the punch is provided with one or more punching oil supply holes for applying the punching oil to an outer surface of the punch.

METHOD FOR PRE-DETECTING DEFECTIVE POROUS POLYMER SUBSTRATE FOR SEPARATOR (18032565)

Main Inventor

Won-Sik BAE

Brief explanation

- The patent application describes a method for pre-detecting defective porous polymer substrates used as separators.

- The method involves selecting a porous polymer substrate with multiple pores and observing it using a scanning electron microscope (SEM) to obtain an image. - The average value of the pore distribution index (PDI) is quantified and then corrected to obtain a more accurate value. - If the corrected average value of PDI is determined to be 60 a.u. or less, the porous polymer substrate is classified as a good product. - If the corrected average value of PDI is determined to be larger than 60 a.u., the porous polymer substrate is classified as a defective product.

Abstract

Disclosed is a method for pre-detecting a defective porous polymer substrate for a separator, including selecting a porous polymer substrate having a plurality of pores; observing the selected porous polymer substrate with a scanning electron microscope (SEM) to obtain an image of the porous polymer substrate; quantifying the average value of pore distribution index (PDI); correcting the quantified average value of pore distribution index to obtain the corrected average value of pore distribution index; determining whether or not the corrected average value of pore distribution index is 60 a.u. (arbitrary unit) or less; and classifying the porous polymer substrate as a good product, when the corrected average value of pore distribution index is determined to be 60 a.u. or less, and classifying the porous polymer substrate as a defective product, when the corrected average value of pore distribution index is determined to be larger than 60 a.u.

Battery Cell Diagnosing Apparatus and Method (18200158)

Main Inventor

Sun-Jong Lee

Brief explanation

The patent application describes a battery cell diagnosing apparatus.

• The apparatus includes a current measuring unit to measure the current of a battery cell.
• It also includes a voltage sensing unit to sense the cell voltage of the battery cell.
• A first control unit is present to transmit information about the battery cell, including data from the current measuring unit and the voltage sensing unit, to an external device.
• The first control unit can receive diagnostic information of the battery cell, based on the transmitted information, from the external device.
• The first control unit is further capable of diagnosing an abnormal state of the battery cell based on the received diagnostic information and the transmitted information.

Abstract

Disclosed is a battery cell diagnosing apparatus, which includes a current measuring unit configured to measure a current of a battery cell; a voltage sensing unit configured to sense a cell voltage of the battery cell; and a first control unit configured to transmit first information of the battery cell including data obtained from the current measuring unit and the voltage sensing unit to an external device, receive second information including diagnostic information of the battery cell obtained based on the first information from the external device, and diagnose an abnormal state of the battery cell based on the first information and the second information.

Negative Electrode For Secondary Battery, Manufacturing Method Thereof, and Secondary Battery Comprising the Same (18027467)

Main Inventor

Daeeun Yu

Brief explanation

The abstract of the patent application describes a negative electrode for a secondary battery, where a layer of negative electrode active material is applied on a current collector surface.

• The invention is related to a negative electrode design for secondary batteries.
• The negative electrode includes a current collector, which is a conductive material that collects and carries the electric charge.
• The current collector has at least one surface where a layer of negative electrode active material is applied.
• The negative electrode active material is responsible for storing and releasing energy during the battery's charging and discharging cycles.
• By forming the negative electrode active material layer on the current collector, the efficiency and performance of the secondary battery can be improved.
• This design allows for better utilization of the active material, leading to enhanced battery capacity and longer lifespan.
• The patent application focuses on the technical details and manufacturing process of this negative electrode structure.

Abstract

A negative electrode for a secondary battery in which a negative electrode active material layer is formed on at least one surface of a current collector.

NEGATIVE ELECTRODE FOR SECONDARY BATTERY, NEGATIVE ELECTRODE SLURRY AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE (18029664)

Main Inventor

Keiko MATSUBARA

Brief explanation

- The patent application describes a negative electrode for a secondary battery that has improved life characteristics.

- The negative electrode includes a graphite-based material and a silicon-based material as the negative electrode active material, along with a conductive material. - The graphite-based material used in the electrode is a granulated product of artificial graphite with natural graphite. - Some of the natural graphite in the granulated product is partially exfoliated to form an exfoliated portion. - The exfoliated portion is either in contact with the silicon-based material or another granulated product of artificial graphite with natural graphite, or it forms a composite with the silicon-based material. - The invention aims to enhance the performance and lifespan of secondary batteries by utilizing a specific combination of materials in the negative electrode.

Abstract

Provided are a negative electrode for a secondary battery having improved life characteristics, a negative electrode slurry and a method for manufacturing a negative electrode. The negative electrode for a secondary battery includes at least a graphite-based material and a silicon-based material, as a negative electrode active material, and a conductive material, wherein the graphite-based material includes a granulated product of artificial graphite with natural graphite, at least a part of natural graphite in the granulated product is exfoliated partially to form an exfoliated portion, and the exfoliated portion is in contact with the silicon-based material or another granulated product of artificial graphite with natural graphite, or forms a composite with the silicon-based material.

Method for Manufacturing Positive Electrode for Lithium Secondary Battery and Positive Electrode for Lithium Secondary Battery Manufactured Thereby (18032437)

Main Inventor

Tae Gon Kim

Brief explanation

The patent application describes a method for manufacturing a positive electrode for a lithium secondary battery. Here are the key points:

• The method involves mixing a lithium transition metal oxide and a carbon-based material with a low density in a mechanofusion manner. This forms a positive electrode active material with a carbon coating layer.
• The positive electrode active material is then dry mixed with a binder to create a dry mixture.
• The dry mixture is applied onto a positive electrode current collector.
• The resulting positive electrode is suitable for use in a lithium secondary battery.

Abstract

A method for manufacturing a positive electrode for a lithium secondary battery includes i) mixing a lithium transition metal oxide and a carbon-based material having a density of 0.05 g/cc or less in a mechanofusion manner to form a positive electrode active material including a carbon coating layer, ii) dry mixing the positive electrode active material and a binder to form a dry mixture, and iii) applying the dry mixture on a positive electrode current collector. A positive electrode for a lithium secondary battery manufactured by the method is also provided.

Method of Preparing Lithium Secondary Battery and Lithium Secondary Battery Prepared Thereby (18027688)

Main Inventor

So Ra Baek

Brief explanation

- The patent application describes a method for preparing a lithium secondary battery.

- The method involves specific steps to simplify the preparation process. - The innovation aims to improve the efficiency and effectiveness of lithium secondary battery production. - The patent application does not provide further details about the specific steps involved in the method.

Abstract

A method of preparing a lithium secondary battery includes:

Lithium Secondary Battery and Method of Manufacturing the Same (18031387)

Main Inventor

Chi Ho Jo

Brief explanation

The patent application describes a lithium secondary battery and a method of manufacturing it. 

• The battery includes a positive electrode additive that reduces the amount of oxygen gas generated during charging/discharging.
• The ratio of initial charge capacity to initial discharge capacity is adjusted within a specific range to improve battery performance.
• The battery inhibits self-discharging and improves operating voltage by enhancing the open circuit voltage during initial activation and high-temperature storage.
• This lithium secondary battery is suitable for use as a power source for mid-to-large devices like electric vehicles.

Abstract

A lithium secondary battery and a method of manufacturing the lithium secondary battery are provided. In the lithium secondary battery, a positive electrode additive represented by Formula 1 as an irreversible additive is included in a positive electrode mixture layer, and a ratio (CC/DC) of an initial charge capacity (CC) to an initial discharge capacity (DC) is adjusted within a specific range, thereby reducing the amount of oxygen gas generated in the charging/discharging of the lithium secondary battery, and at the same time, inhibiting self-discharging and improving an operating voltage by improving the open circuit voltage of the battery in initial activation and/or subsequent high-temperature storage. The lithium secondary battery including the same can be effectively used as a power source for mid-to-large devices such as electric vehicles.

SLURRY COMPOSITION, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME (18030958)

Main Inventor

Choonghyeon Lee

Brief explanation

The patent application describes a slurry composition for use in manufacturing a positive electrode for a lithium secondary battery. The slurry composition includes several components such as a positive electrode active material, an electrically conductive material, a binder, a thickener, an additive, and a solvent. 

• The slurry composition improves the processability in the slurry coating process for manufacturing the positive electrode.
• The slurry composition contains a thickener called lithiated carboxymethyl cellulose, which helps to provide thixotropy.
• Thixotropy allows the slurry to have sufficient flowability and flexibility to adapt to changes in the slurry coating rate.
• The slurry composition also includes an additive called a carbodiimide-based compound, which further enhances its processability.
• The overall innovation of this patent application lies in the improved slurry composition that enables a more efficient and flexible manufacturing process for lithium secondary batteries.

Abstract

A slurry composition, and a positive electrode and a lithium secondary battery including the same are provided. The slurry composition includes a positive electrode active material, an electrically conductive material, a binder, a thickener comprising a lithiated carboxymethyl cellulose, an additive comprising a carbodiimide-based compound, and a solvent, and provides an improved processability in a slurry coating process for manufacturing a positive electrode for a lithium secondary battery due to its thixotropy by which sufficient flowability to flexibly respond to changes in slurry coating rate is secured.

Pouch Sealing Apparatus (18032587)

Main Inventor

Ja Young Seo

Brief explanation

The abstract describes a pouch sealing apparatus designed to seal a pouch for batteries.

• The pouch has an upper and lower section and is used to hold an electrode assembly and electrolytic solution.
• The apparatus includes a mounting unit for placing the pouch, a press roller to move the electrolytic solution into the pouch, and a sealing tool to seal the pouch.
• The press roller heats up using a heating portion and fuses the upper and lower sections of the pouch together while rolling.

Abstract

A pouch sealing apparatus configured to seal a pouch for batteries includes an upper pouch and a lower pouch, the pouch being configured to receive an electrode assembly and an electrolytic solution. The pouch sealing apparatus includes a mounting unit configured to allow a pouch receiving portion to be seated thereon, a press roller configured to move the electrolytic solution into the pouch receiving portion while rolling from open ends of the upper pouch and the lower pouch toward the pouch receiving portion, and a sealing tool configured to seal parts of the upper pouch and the lower pouch to be sealed, wherein the press roller fuses the upper pouch and the lower pouch in contact with each other while being heated by a heating portion added to a part of the roller and rolling.

Method And Apparatus For Manufacturing Unit Cell (18032734)

Main Inventor

Dong Hyeuk Park

Brief explanation

The present invention is an apparatus for manufacturing a unit cell.

• The apparatus includes two separators that can move in a longitudinal direction and are cut at intervals between adjacent electrodes.
• There is a first roller positioned on one side of the separators and a second roller positioned on the opposite side.
• The second roller is aligned with the first roller along an axis and has an oval shape with a long axis and a short axis.
• The second roller contacts the second separator and presses both separators against the first roller at portions between adjacent electrodes.
• Either the lower roller or the upper roller is heated.
• The purpose of this invention is to simplify the manufacturing process of unit cells.

Abstract

The present invention relates to an apparatus for manufacturing a unit cell, comprising: a first separator and a second separator configured to move in a longitudinal direction, the first and second separators configured to be cut at intervals between adjacent electrodes; a first roller positioned on a first side of the first and second separators; and second roller positioned on a second side of the first and second separators opposite the first side wherein the second roller is aligned with the first roller along an axis and defines an oval shape having a long axis and a short axis, wherein, the second roller is configured to contact the second separator and press the first and second separators against the first roller at portions of the first and second separators which are between adjacent electrodes, and at least one of the lower roller or the upper roller is heated.

Method for Manufacturing Electrode Assembly, Sealing Unit Used for the Same, and Electrode Assembly Manufactured by Sealing Unit (18033498)

Main Inventor

Se Young Oh

Brief explanation

The patent application describes a sealing unit for an electrode stack used in a device.

• The sealing unit includes a sealing part and a body part.
• The sealing part has a sealing groove that is recessed inward.
• The sealing part includes a bottom surface, a first inclined surface, and a second inclined surface.
• The bottom surface forms the bottom of the sealing groove.
• The first inclined surface extends upward from the bottom surface.
• The second inclined surface extends downward from the bottom surface.

Abstract

A sealing unit includes a sealing part configured to seal an electrode stack formed by alternately stacking electrodes and separators and a body part extending from the sealing part, wherein a sealing groove that is recessed inward is formed in the sealing part, and the sealing part includes a bottom surface forming the bottom of the sealing groove, a first inclined surface that is an inclined surface extending to be inclined upward from the bottom surface, and a second inclined surface that is an inclined surface extending to be inclined downward from the bottom surface.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY COMPRISING SAME (18032523)

Main Inventor

Guilong Jin

Brief explanation

The patent application describes an electrode assembly and a secondary battery that includes multiple electrode structures, a solid electrolyte layer, and polymer layers at both ends of the assembly.

• The electrode assembly consists of several electrode structures.
• Each electrode structure includes a positive electrode, a negative electrode, and a solid electrolyte layer.
• Polymer layers are present at both ends of the electrode assembly.
• The electrode assembly is used in a secondary battery.

Abstract

An electrode assembly and a secondary battery comprising the same are provided. The electrode assembly includes a plurality of electrode structures, each of which comprising a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode, and polymer layers at both ends of the electrode assembly.

Battery Apparatus, Battery Management System and Diagnosis Method (18031946)

Main Inventor

Hangon Park

Brief explanation

The patent application describes a battery apparatus with multiple battery packs and switches.

• The apparatus has a first switch connected to the first battery pack and a first link terminal.
• A second switch is connected to the second terminal of the first battery pack and a second link terminal.
• A third switch is connected to the first terminal of a second battery pack and the first link terminal.
• A fourth switch is connected to the second terminal of the second battery pack and the second link terminal.
• A first diagnosis circuit includes a first capacitor that charges the voltage of the first battery pack when the first and second switches are closed.
• A second diagnosis circuit includes a second capacitor that charges the voltage of the second battery pack when the third and fourth switches are closed.

Abstract

In a battery apparatus, a first switch is connected between a first terminal of a first battery pack and a first link terminal, a second switch is connected between a second terminal of the first battery pack and a second link terminal, a third switch is connected between a first terminal of a second battery pack and the first link terminal, and a fourth switch connected between a second terminal of the second battery pack and the second link terminal. A first diagnosis circuit includes a first capacitor for charging a voltage of the first battery pack when the first switch and the second switch are closed, and a second diagnosis circuit includes a second capacitor for charging a voltage of the second battery pack when the third switch and the fourth switch are closed.

Method for Manufacturing Pouch Case of Secondary Battery, and Pouch Film of Secondary Battery and Pouch Case of Secondary Battery (18032951)

Main Inventor

Kyoung Ha Kim

Brief explanation

The patent application describes a method for manufacturing a pouch case for a secondary battery. The method involves measuring the elongation rate of a pouch film without the need for separate sampling. The elongation rate is determined by the color of the outer layer of the pouch film. 

• The method involves stacking a metal layer above an inner layer and then stacking an outer layer with colored dye particles above the metal layer to create a pouch film.
• The pouch film is then formed into a three-dimensional shape to accommodate an electrode assembly.
• The elongation rate of the pouch film is measured by analyzing the color of the outer layer.
• This measurement helps determine if the elongation has reached critical levels where a crack is about to occur or if it has already reached a defective level where a crack is occurring.

Abstract

During a process of manufacturing a pouch case by forming a pouch film, an elongation rate can be measured by the color of an outer layer of the pouch film without separate sampling, and it can be determined whether or not elongation has occurred which causes a critical level in which a crack is about to occur or a defective level in which a crack is occurring. A method for manufacturing a pouch case of a secondary battery according to the present invention includes: stacking a metal layer above an inner layer and stacking an outer layer, which includes colored dye particles, above the metal layer, thereby producing a pouch film; forming the pouch film into a three-dimensional shape so that an electrode assembly is accommodated therein; and measuring an elongation rate of the pouch film through color of the outer layer.

Battery Pack and Vehicle (18032627)

Main Inventor

Bo-Ra Jeon

Brief explanation

The patent application describes a battery pack and a vehicle that includes the battery pack. 

• The battery pack is designed to increase the space efficiency of the installation site.
• The battery pack includes at least one battery module and a cooling unit.
• The cooling unit has a refrigerant passage for the flow of refrigerant.
• The cooling unit is in a plate shape and serves as a mounting platform for the battery module.
• The cooling unit has either a convex part or a concave part where the battery module is not mounted.
• The convex part is raised in the upper direction, while the concave part is lowered in the lower direction.
• This design allows for better utilization of space and efficient cooling of the battery module.

Abstract

Provided are a battery pack with increased space efficiency of an installation site and a vehicle including the battery pack. The battery pack includes at least one battery module; and a cooling unit having a refrigerant passage configured to allow a refrigerant to flow therein, having a plate shape such that the at least one battery module is mounted thereon, and including at least one of a convex part in which a part on which the battery module is not mounted is convex in an upper direction, and a concave part in which another part on which the battery module is not mounted is concave in a lower direction.

CYLINDRICAL BATTERY CELL, AND BATTERY PACK AND VEHICLE COMPRISING SAME (18031847)

Main Inventor

Kwang-Su HWANGBO

Brief explanation

The abstract describes a cylindrical battery cell design with specific components and their functions. 

• The battery cell includes an electrode assembly with two electrode tabs.
• The electrode assembly is housed in a battery can, which is connected to one of the electrode tabs.
• A top cap is used to cover the opening of the battery can and is connected to the other electrode tab.
• The top cap is electrically insulated from the battery can.
• A terminal extension member is attached to the top of the battery can and is also electrically insulated from the top cap.

Abstract

A cylindrical battery cell includes an electrode assembly including a first electrode tab and a second electrode tab, a battery can in which the electrode assembly is received, the battery can being electrically connected to the second electrode tab, a top cap to cover a top opening of the battery can, the top cap being electrically connected to the first electrode tab and electrically insulated from the battery can, and a terminal extension member coupled to a top of the battery can and electrically insulated from the top cap.

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME (18029690)

Main Inventor

Subin PARK

Brief explanation

The abstract describes a battery module design for a battery cell stack.

• The battery module includes a stack of multiple battery cells arranged in a vertical direction.
• An exterior member surrounds the front, rear, and lateral sides of the battery cell stack.
• A sensing block is positioned at the front and rear sides of the battery cell stack.
• An elastic member is placed between the exterior member and the lateral side of the battery cell stack.
• The design aims to provide a compact and efficient battery module for various applications.

Abstract

A battery module includes a battery cell stack including a plurality of battery cells stacked in a first direction; an exterior member configured to surround front and rear sides and two opposite lateral sides of the battery cell stack; a sensing block positioned at front and rear sides of the battery cell stack; and an elastic member disposed between the exterior member and the lateral side of the battery cell stack.

BATTERY MODULE HAVING STRUCTURE ENABLING UNIFORM PRESSURE TO BE APPLIED DURING SWELLING, AND BATTERY PACK AND VEHICLE COMPRISING SAME (18032336)

Main Inventor

Dong-Wook KIM

Brief explanation

The patent application describes a battery module with a unique design for its housing.

• The battery module includes a cell stack, which is a collection of multiple battery cells.
• The housing of the battery module consists of a base plate, a cover plate, and a connector.
• The base plate covers the lower surface of the cell stack, while the cover plate covers the upper surface.
• The base plate and the cover plate have a curved shape, with the central region closer to the cell stack than the edge regions.
• The connector connects the base plate and the cover plate, and it also accommodates the cell stack.
• The curved shape of the base plate and the cover plate helps optimize the placement of the cell stack within the housing.
• This design may improve the overall performance and efficiency of the battery module.

Abstract

A battery module including a cell stack including a plurality of battery cells; and a housing including a base plate covering a lower surface of the cell stack, a cover plate covering an upper surface of the cell stack, and a connector connecting the base plate and the cover plate, and accommodating the cell stack. The base plate and the cover plate have a curved shape so that the central region thereof is located closer to the cell stack than the edge regions.

BATTERY MODULE, BATTERY PACK, VEHICLE, AND METHOD FOR MANUFACTURING BATTERY MODULE (18031638)

Main Inventor

Do-Hyeon KIM

Brief explanation

The patent application describes a battery module that consists of multiple battery cells arranged in a specific direction with a certain gap between them. The module also includes a cell frame that has a space to hold the battery cells and a foam member that fills the gaps between the cell frame and the battery cells, as well as between the battery cells themselves.

• Battery module with multiple battery cells arranged in a specific direction
• Battery cells are spaced apart from each other by a certain interval
• Cell frame included in the module provides a receiving space for the battery cells
• Foam member is filled in the gaps between the cell frame and the battery cells
• Foam member is also filled between the battery cells themselves
• The foam member helps to secure the battery cells in place and provides cushioning
• The arrangement and use of the foam member improve the stability and safety of the battery module.

Abstract

A battery module includes a plurality of battery cells arranged in at least one direction and spaced apart from one another by a certain interval, a cell frame including a receiving space in which the plurality of battery cells are accommodated, and a foam member filled in at least one of between the cell frame and the plurality of battery cells and between the plurality of battery cells.

BATTERY MODULE, BATTERY PACK, AND VEHICLE INCLUDING THE SAME (18033147)

Main Inventor

Chang-Hun LEE

Brief explanation

The patent application describes a battery module that includes a cell assembly, a module case, and a connector.

• The cell assembly contains at least one battery cell.
• The module case houses the cell assembly.
• The connector is mounted on the module case.
• The connector includes a terminal for electrical connection with the battery cell.
• The connector also has a housing that surrounds the terminal.
• A connector header body is coupled to the connector housing and inserted into the module case.
• A connector gasket, with a high melting point of 1000° C. or higher, is located between the module case and the connector header body.
• The purpose of the invention is to provide a battery module with improved electrical connection and thermal resistance.

Abstract

A battery module includes a cell assembly including at least one battery cell, a module case in which the cell assembly is accommodated, and a connector mounted on the module case. The connector includes a connector terminal for electrical connection with the battery cell, a connector housing surrounding the connector terminal, a connector header body coupled to the connector housing and mounted on the module case in such a manner that at least a part of the connector header body is inserted into the module case, and a connector gasket located between the module case and the connector header body and having a melting point of 1000° C. or higher.

SEPARATOR INCLUDING INORGANIC MATERIAL HAVING CORE-SHELL STRUCTURE AND METHOD OF MANUFACTURING THE SAME (18032713)

Main Inventor

Ji Su LEE

Brief explanation

The patent application describes a separator for use in various applications, such as batteries or fuel cells.

• The separator has a porous structure and a coating layer on at least one surface.
• The coating layer is made of a surface-modified inorganic material.
• The surface-modified inorganic material consists of particles with a core-shell structure.
• The core of the particle is an inorganic material, while the shell is a polymer bonded to the surface of the inorganic particle.
• This design enhances the performance and durability of the separator.
• The separator can be used in various applications, including batteries and fuel cells.

Abstract

A separator including a separator substrate having a porous structure and a coating layer on at least one surface of the separator substrate. The coating layer includes a surface-modified inorganic material, wherein the surface-modified inorganic material includes particles having a core-shell structure wherein a polymer is bonded to a surface of an inorganic particle.

BATTERY PACK AND ELECTRONIC DEVICE COMPRISING SAME (18031645)

Main Inventor

Sung-Jin OH

Brief explanation

The patent application discusses a battery pack that includes a battery cell and a Protection Circuit Module (PCM).

• The battery pack has a battery cell with two electrode leads.
• The PCM includes a Printed Circuit Board (PCB) with two connection terminals that are connected to the electrode leads.
• The PCM also includes a thermally contracting tube that surrounds the PCB.
• The purpose of the PCM is to prevent overcharging of the battery cell.

Abstract

Discussed is a battery pack, which may include a battery cell having a pair of electrode leads, and a Protection Circuit Module (PCM) including a Printed Circuit Board (PCB) having a pair of connection terminals respectively coupled to the pair of electrode leads and a thermally contracting tube configured to surround the PCB, the PCM being configured to prevent overcharging of the battery cell.