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POLYMER, ELECTRODE SHEET, AND BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS RELATED THERETO

Resumen de: EP4570846A1

This application provides a polymer, an electrode plate, and a battery cell, battery, and electric apparatus related thereto. The polymer includes an ether polymer. The ether polymer is made into a sheet structure. The sheet structure undergoes dynamic frequency scanning testing at (Tm+20)°C to obtain an elastic modulus G'-energy loss modulus G" curve, where a slope of the elastic modulus G'-energy loss modulus G" curve is K, 1

ELECTRODE SHEET AND RELATED BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4571894A1

The present application provides an electrode sheet and a related battery cell, a battery, and an electric device. The electrode sheet comprises a current collector and an active material layer arranged on at least one surface of the current collector; the active material layer comprises an active material and an ester polymer; the active material layer satisfies formulae (1)-(3); and as a component of the active material layer, the ester polymer can form uniform high wetting points in the active material layer and uniformly improve the wettability of the active material layer, thereby increasing the overall liquid absorption rate of the active material layer and improving the cycle performance of a battery cell. λ=1−P1P2v=π×d22×h×ρtv/λ>1.00

SECONDARY BATTERY

Resumen de: EP4571950A1

A secondary battery includes an electrode assembly, a case including a first surface that is opened, the case being configured to accommodate the electrode assembly, a first cap plate covering the first surface, a first terminal electrically connected to a first electrode tab of the electrode assembly and configured to penetrate the first cap plate, the first terminal including a first terminal plate and a first set of protrusions that are integrally formed, and a second terminal electrically connected with a second electrode tab of the electrode assembly.

TROLLEY CHANGEOVER CONTROL METHOD AND TROLLEY CHANGEOVER SYSTEM

Resumen de: EP4570451A1

A cart remodeling control method and system are disclosed in the present disclosure. The method includes: acquiring, when a cart to be tested reaches a preset position, current blueprint information of the cart to be tested; receiving target blueprint information sent by a manufacturing execution system, and matching the current blueprint information with the target blueprint information for consistency; controlling, when the current blueprint information is inconsistent with the target blueprint information, a jacking mechanism to perform positioning and jacking actions on the cart to be tested, and then sending a control instruction to a robot; wherein the control instruction is used for controlling a gripper mechanism arranged on the robot to perform a pick-and-place action on at least one position-limiting block on the tray; and determining, when a position of the at least one position-limiting block matches a position-limiting block position in the target blueprint information, that remodeling of the cart to be tested is successful, and controlling the jacking mechanism to perform a releasing action to release the cart to be tested. Therefore, not only labor costs and production costs can be reduced, but also the production efficiency during product remodeling can be improved.

PRE-WELDING ADDRESSING METHOD AND SYSTEM

Resumen de: EP4570421A1

Embodiments of the present disclosure provide a pre-welding addressing method and system. The pre-welding addressing method includes: obtaining product information of a to-be-addressed battery pack, in response to the battery pack getting in position, where the battery pack includes a plurality of cells, and the product information includes initial addressing coordinates of a plurality of cell terminal posts; obtaining positioning deviation values of the plurality of cell terminal posts based respectively on the initial addressing coordinates of the plurality of cell terminal posts, where the positioning deviation values of the cell terminal posts are determined based on addressing images of the cell terminal posts that are acquired by an addressing camera module; and determining target addressing coordinates of the plurality of cell terminal posts based respectively on the initial addressing coordinates of the plurality of cell terminal posts and the positioning deviation values of the plurality of cell terminal posts. As such, positions of the cell terminal posts in the battery pack can be addressed quickly and accurately based on the product information of the battery pack, increasing the addressing efficiency for the cell terminal posts.

BATTERY WELDING SYSTEM AND CONTROL METHOD THEREFOR

Resumen de: EP4570414A1

Embodiments of the present disclosure provide a battery welding system and a control method therefor. The battery welding system includes a welding module including a welding apparatus, a driving assembly and a plurality of range finders, wherein at least some of the range finders are connected to a driving end of the driving assembly, and the driving assembly drives the range finders to move in a first direction such that a separation distance between the range finders in the first direction changes. In the battery welding system in the embodiments of the present disclosure, the driving assembly driving the range finders to move enables the separation distance between the range finders in the first direction to change, so that the separation distance between the range finders can correspond to a separation distance between regions to be welded on the battery without disassembling the range finders. Accordingly, the efficiency of adjusting the separation distance between the range finders is improved, the time is saved, and the workload is reduced.

A GRID-INDEPENDENT MOBILE DEVICE CHARGING SYSTEM AND A METHOD FOR MANAGING THE CHARGING OF MOBILE DEVICES

Resumen de: EP4570569A1

A grid-independent mobile device charging system, comprising: a cloud module (110) designed to analyze system data and determine the operational parameters of individual system modules based on this analysis; a distribution module (120) wirelessly connected to the cloud module (110), designed to receive the operational parameters of individual system modules from the cloud module (110) and transmit them to subsequent modules; a converter module (130) connected to the distribution module (120), designed to receive an authorization code from the user and facilitate information transfer between modules; a battery charging module (140) connected to the converter module (130), designed to charge batteries (142), wherein the battery charging module (140) includes a means for generating energy (141) from renewable sources and batteries (142) for storing the electricity produced by said means for generating energy (141); and a personal transporter charging module (150) connected to the distribution module (120), the converter module (130), and the battery charging module (140), designed to receive and charge the mobile device, wherein the personal transporter charging module (150) comprises at least one charging output (151) designed to charge the mobile device, at least one electrolock (152A) designed to receive and secure the mobile device, and an LED display (153) for determining the status of the charging output (151). The personal transporter charging module (150) monitors the b

BATTERY PACK

Resumen de: EP4572083A1

The present disclosure relates to a battery pack (100), and the technical problem to be solved is to provide a battery pack in which a charger can directly supply power to a battery control circuit (140) that controls the charging and discharging of a battery cell and/or an LED display (160) that displays the amount of charge when the battery cell is coupled to the charger, thereby preventing the degradation of the battery cell and minimizing the current consumption of the battery cell. To this end, the present disclosure provides a battery pack (100) which includes: a charge switch (120) coupled between a battery cell positive terminal and a charger positive terminal (113) and between a pack positive terminal (114) and the charger positive terminal (113); a discharge switch (130) coupled between a battery cell negative terminal and a pack negative terminal (116) and between a charger negative terminal (117) and the pack negative terminal (116); a battery control circuit (140) configured to control the charge switch (120) and the discharge switch (130); and a power supply circuit (150) coupled between the charger positive terminal (113) and the battery control circuit (140), wherein the power supply circuit (150) directly supplies power to the battery control circuit (140) when a battery cell is coupled to a charger.

BATTERY PACK

Resumen de: EP4571982A1

The present technology relates to a battery pack comprising a pack case accommodating a cell stack assembly comprising a plurality of cells, wherein the pack case includes a base plate supporting a lower portion of the cell stack assembly; side walls coupled to a rim of the base plate to support lateral portions of the cell stack assembly; and a separation wall interposed between a pair of neighboring cell stack assemblies and coupled to the base plate, wherein the pack case further includes a hollow part within the separation wall and a truss beam inserted to divide the hollow part.

CELL STACK ASSEMBLY AND BATTERY PACK COMPRISING SAME

Resumen de: EP4571981A1

The present technology relates to a cell stack assembly and a battery pack including the same, the cell stack assembly of the present disclosure includes a cell stack having a plurality of battery cells stacked with electrode leads derived from one or both sides; and a separating member configured to contact a first side surface of at least one battery cell of the cell stack, wherein the separating member including a hollow part therein and a protrusion part on each of both side surfaces.

BATTERY TESTING TOOL, APPLICATION METHOD OF BATTERY TESTING TOOL, AND CONTROL METHOD

Resumen de: EP4571283A1

The present disclosure relates to the field of battery technology, and discloses battery test tooling, and a use method and a control method for battery test tooling. The battery test tooling can improve the versatility of the battery test tooling. The battery test tooling comprises: a bracket, at least two sets of driving assemblies, and pressing members, wherein the driving assemblies are mounted on the bracket; and each set of driving assembly is provided with the pressing member, a pressing face on the pressing member that is away from the bracket being used to abut against a battery to be tested; and each of the pressing members is movable in a direction away from or approaching the bracket under the drive of the driving assembly. The battery test tooling provided in the present application is used to test the battery to be tested.

COVER ASSEMBLY, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4571959A1

The present application is applicable to the field of batteries, and provides a cover assembly, a battery and an electrical device. The cover assembly includes an end cap and an insulator. The end cap includes a cap body and a bulge portion protrusively disposed on the cap body. The bulge portion and the cap body are integrally molded. The insulator is internally provided with a mounting hole, and the bulge portion is clamped in the mounting hole to connect the insulator to the end cap. The cover assembly provided by the present application has good waterproof performance, and is convenient to assemble and relatively low in cost.

BATTERY CELL ASSEMBLY

Resumen de: EP4571998A1

Provided is a battery cell assembly according to example embodiments. The battery cell assembly includes a cell stack, first and second bus bar frames coupled to the cell stack, a first integrated circuit on the first bus bar frame, a second integrated circuit on the second bus bar frame, and a lead cover assembly coupled to the first bus bar frame, in which the lead cover assembly includes a lead cover frame coupled to the first bus bar frame and a third integrated circuit on the lead cover frame.

ELECTRODE MIXTURE FILM, METHOD FOR PREPARING THE SAME, DRY ELECTRODE AND LITHIUM SECONDARY BATTERY WHICH INCLUDE THE SAME

Resumen de: EP4571871A1

The present invention relates to a dry electrode including an electrode mixture film comprising an electrode active material containing a carbon coating layer disposed on the surface of an active material core, and a fibrillized binder, wherein a conductive path connectivity index (CPCI), which is defined by factors such as degree of agglomeration of the binder, volume cumulative average particle diameter D₅₀ of the electrode active material, and thickness of the carbon coating layer of the electrode active material, is 0.9 to 0.45, and preferably the dry electrode includes no conductive material but still has excellent resistance characteristics due to excellent connectivity of a conductive path, and a lithium secondary battery including the dry electrode and thus having excellent output based on excellent resistance characteristics, and preferably including no conductive material and thus having increased capacity to obtain excellent energy density may be provided.

INTEGRATED BATTERY MODULE

Resumen de: EP4571940A1

The present disclosure discloses an integrated battery module, which includes a box, a liquid cooling assembly and cells. The box includes a frame and a bottom supporting plate structure. The bottom supporting plate structure is provided with at least one pressure relief channel and at least one liquid cooling channel. The pressure relief channel is in communication with an explosion-proof valve via a cavity of the frame. The liquid cooling channel is in communication with a liquid cooling flow channel of a liquid cooling plate.

CURRENT COLLECTOR AND PREPARATION DEVICE THEREOF, ELECTRODE SHEET, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4571898A1

An embodiment of this application provides a current collector and a preparation apparatus thereof, an electrode plate, a battery, and an electrical device. The current collector includes a main region and a tab region disposed along a first direction. The main region includes a first metal. The first metal includes at least one of Ni, Fe, or stainless steel. The tab region includes a second metal. The second metal includes at least one of Cu, Ag, Au, or W, and optionally includes Cu. The technical solutions of this application can improve the cycle performance and safety performance of the battery.

BATTERY, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4572000A1

Disclosed is a battery, which includes an electrode assembly; a battery housing having an open portion formed at one side and a closed portion formed at a side opposite to the open portion and configured to accommodate the electrode assembly through the open portion; and an insulator having a cover portion interposed between the closed portion and the electrode assembly and a side portion interposed between an outer circumference of the electrode assembly and a sidewall of the battery housing, the side portion having a stress relieving portion formed in a predetermined depth from an end thereof.

ELECTROLYTE AND LITHIUM ION BATTERY

Resumen de: EP4571922A1

Provided are electrolyte and lithium ion battery. The electrolyte includes an organic solvent, LiPF₆, and an additive, the additive includes heptamethyldisilazane and a cyanosilane compound, and the cyanosilane compound has the following structural formula:formula (I), herein n is any one integer from 1 to 6, R1, R2, and R3 are each independently selected from any one or more of substituted or unsubstituted C₁-C₁₀ alkyl, substituted or unsubstituted C₁-C₁₀ alkoxy, substituted or unsubstituted C₂-C₁₀ alkynyl, substituted or unsubstituted C₆-C₁₂ alkylaryl, and (R4)₃SiO-, and R4 is selected from any one of substitute or unsubstitnted C₁-C₁₀ alkyl. The electrolyte may reduce the low-temperature direct current internal resistance of the lithium ion battery, improve the cycle performance of the lithium ion battery, reduce the growth rate of the direct current internal resistance in the cycle process, and effectively improve the stability and safety of the lithium ion battery on the whole.

BATTERY CELL AND MANUFACTURING METHOD THEREFOR, AND BATTERY AND ELECTRIC DEVICE

Resumen de: EP4571999A1

Embodiments of this application provides a battery cell and a manufacturing method thereof, a battery, and an electric device, and pertains to the field of battery technologies. The battery cell includes an electrode assembly, an electrode lead-out member, and a first insulating member. The electrode assembly includes a main body and a tab extending from the main body. The electrode lead-out member is connected to the tab to lead out electric energy of the electrode assembly. The electrode lead-out member has a first surface facing the main body. The first insulating member covers at least a portion of the first surface. The battery cell provided in the embodiments of this application features high safety.

APPARATUS AND METHOD FOR REMOVING RESIDUAL ELECTROLYTE

Resumen de: EP4572003A1

Apparatus for removing a residual electrolyte, in which a residual electrolyte remaining after an electrolyte injection is removed in a suction manner to solve limitations in dimensional abnormalities, contamination of an upper portion of a cell, and contamination of molding equipment, thereby enabling continuous production and improving product quality and product reliability, and a method for removing a residual electrolyte using the same. An apparatus for removing a residual electrolyte includes a battery cell including an electrode assembly and an electrolyte, a suction part having at least one opening and configured to suction the residual electrolyte remaining in the battery cell, and a pump part connected to the suction part to generate a vacuum pressure, thereby generating suction force.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4571987A1

The present application provides a battery cell, a battery and an electric device, relating to the field of batteries. The battery cell includes electrode assemblies, a shell, and a pressure relief mechanism. The shell is used to accommodate the electrode assemblies. The pressure relief mechanism is provided on a lower portion of the shell and integrally formed with the shell. During normal use of the battery cell, the pressure relief mechanism is located at the lower portion of the shell. Compared with the prior art in which the pressure relief mechanism is welded to the end cover, the present application makes the pressure relief mechanism and the shell formed integrally, thereby avoiding leakage caused by welding defects. In addition, the ability of the pressure relief mechanism to resist external impacts can also be enhanced. At the same time, since the electrolytic solution inside the shell may cause creep deformation or impact on the pressure relief mechanism, that the pressure relief mechanism and the shell are integrally formed can improve the rigidity of the pressure relief mechanism, so that the pressure relief mechanism has a stronger resistance to the creep deformation and impact of the electrolytic solution, which is beneficial to increase the life of the pressure relief mechanism and reduce the risk of leakage in the pressure relief mechanism.

PRE-WELDING POSITIONING SYSTEM AND METHOD

Resumen de: EP4570422A1

The present disclosure discloses a pre-welding positioning system and method, the pre-welding positioning system including: a frame body, a controller, a three-axis mechanism arranged on the frame body, and a vision acquisition system and a fixing component arranged on the three-axis mechanism, where the controller is configured to control the three-axis mechanism to move to a designated position based on product information of a battery pack to be welded; the vision acquisition system is configured to acquire, at the designated position, an image of a positioning component of the battery pack, in response to the three-axis mechanism reaching the designated position; and determine a distance deviation value between the positioning component and a preset reference point based on the acquired detection image; and the controller is further configured to control the three-axis mechanism to drive the fixing component to the positioning component based on the distance deviation value so as to fix the battery pack to the frame body by the fixing component.

SECONDARY BATTERY AND BATTERY MODULE HAVING THE SAME

Resumen de: EP4571949A1

A secondary battery (500), comprising: a battery can (100) having an opening (O) to expose an accommodating space to the outside, a can width (Dcan) in a first direction, and a can length in a second direction crossing the first direction; an electrode assembly (EA) in the accommodating space, and comprising a positive electrode plate (A), a negative electrode plate (C), and a separator (S) between the positive electrode plate (A) and the negative electrode plate (C); a cap assembly (200) electrically connected to the positive electrode plate (A) and the negative electrode plate (C), and having a welding recess (WR) at a peripheral portion of the cap assembly (200), the cap assembly (200) being joined to a welding end (WE) of the battery can 100 via the welding recess (WR) to seal the accommodating space; and a side welding unit (300) joining a side portion of the welding end (WE) of the battery can (100) to a side portion of the cap assembly (200), a surface of the side welding unit (300) being located at a same level as or a level lower than that of an outer peripheral surface (101) of the battery can (100).

DEVICE FOR MANUFACTURING BATTERY MODULE AND METHOD FOR MANUFACTURING BATTERY MODULE

Resumen de: EP4571912A1

An apparatus for manufacturing a battery module according to the present disclosure includes a stack die on which a unit cell group is mounted, the unit cell group including a plurality of battery cells and a cooling tube attached to the plurality of battery cells; a press unit configured to press a plurality of the unit cell groups and a spacer disposed between the unit cell group and the adjacent unit cell group in a direction; and an alignment unit configured to align upper surfaces of the battery cells to a same height by moving the battery cells up/down.

POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE ACTIVE MATERIAL SLURRY, POSITIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL

Nº publicación: EP4571880A1 18/06/2025

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd

Resumen de: EP4571880A1

The objective of the present invention is to provide a positive electrode active material for ensuring excellent cycle characteristics or electrode resistance characteristics, a positive electrode active material slurry, a positive electrode, a lithium ion secondary battery, and a method for preparing a positive electrode active material. A positive electrode active material according to an embodiment contains a mixture of lithium transition metal oxide particles and magnesium fluoride particles and shows a peak at 685 eV to 687 eV in the spectrum of fluorine 1s electrons, as observed by X-ray photoelectron spectroscopy.