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NONAQUEOUS ELECTROLYTIC SOLUTION AND NONAQUEOUS ELECTROLYTIC SOLUTION BATTERY INCLUDING NONAQUEOUS ELECTROLYTIC SOLUTION

Resumen de: EP4708437A1

The present invention relates to a nonaqueous electrolytic solution comprising an electrolyte, a nonaqueous solvent, a compound represented by general formula (I), and at least one specific anion-containing compound selected from an anion-containing compound having a P=O bond and a P-F bond, an anion-containing compound having an S=O bond and an S-F bond, and an alkyl sulfate anion-containing compound, in which the mass ratio of the compound represented by the general formula (I) to the specific anion-containing compound satisfies a specific range. The present invention also relates to a nonaqueous electrolytic solution battery comprising a negative electrode and a positive electrode capable of occluding and releasing metal ions, and the nonaqueous electrolytic solution.

SEPARATOR FOR SODIUM BATTERY, SECONDARY BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4708542A1

The present application relates to the field of battery technologies, and specifically, to a separator for a sodium battery, a secondary battery, and an electric apparatus. The separator for the sodium battery has a first surface and a second surface along its thickness direction, and a porosity of the separator decreases gradually from the first surface to the second surface. The separator with this structure has a certain rigidity, facilitating its ability to resist swelling and deformation of a positive electrode plate and a negative electrode plate to a certain extent, while also having a certain compressibility, effectively ensuring sufficient infiltration of an electrolyte, thereby mitigating the rapid degradation of the cycle life of a battery caused by volume swelling during the use of the sodium battery.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4708548A1

The present application provides a battery cell, a battery, and a power consuming apparatus, and belongs to the field of battery technologies. The battery cell includes a shell, an electrode assembly, a first terminal post, and a second terminal post. The shell has a circular wall portion. The electrode assembly is accommodated in the shell. The first terminal post and the second terminal post have opposite polarities. The first terminal post and the second terminal post are spaced apart on the wall portion and are both electrically connected to the electrode assembly. A minimum distance between the first terminal post and a central axis of the wall portion is greater than a minimum distance between the second terminal post and the central axis of the wall portion in a radial direction of the wall portion. The battery cell implements a structure in which the first terminal post surrounds the exterior of the second terminal post in an arc extension direction, so as to facilitate distinguishing and avoid errors in a formation process of the battery cell. The battery cell does not need to be secondarily positioned but a positive probe and a negative probe of a formation device are configured into an annular structure in which an outer ring surrounds an inner ring, thereby facilitating optimization of a cycle time of the battery cell.

ASSEMBLY METHOD FOR SECONDARY BATTERY, SECONDARY BATTERY, BATTERY PACK, AND ELECTRONIC DEVICE

Resumen de: EP4708551A1

Disclosed are an assembly method for a secondary battery (1), a secondary battery (1), a battery pack (8) and an electronic device (9). The assembly method for the secondary battery (1) includes the following steps: an assembly step, assembling a current collector (30) and a terminal (40), so that a wall portion (405) of the terminal (40) abuts against the current collector (30); a welding step, irradiating a laser spot on the wall portion (405), and moving the laser spot along a helical trajectory, welding the wall portion (405) and the current collector (30) to form a weld mark (60), wherein, on a cross-section passing through a terminal axis, the weld mark (60) extends from a first end (60a) located on a surface of the wall portion (405) facing away from the current collector (30) to a second end (60b) located inside the current collector (30).

SECONDARY BATTERY, BATTERY ASSEMBLY, AND ELECTRONIC DEVICE

Resumen de: EP4708420A1

A secondary battery (300) including a housing (320) having an end wall and a sidewall, a positive electrode sheet, a first separator (210), a negative electrode sheet (220), a second separator (210), a first collector plate (310), and a first insulation film (230) is provided. An opening (330) is formed on one side of the sidewall facing away from the end wall. The positive electrode sheet, the first separator (210), the negative electrode sheet (220), and the second separator (210) are stacked and wound sequentially to form an electrode assembly (200) accommodated in the housing (320). The first collector plate (310) is disposed on one end of the electrode assembly (200) facing the opening (330), and the housing (320) is electrically connected to the negative electrode tab (221) through the first collector plate (310). The first insulation film (230) is wrapped around an outer periphery of the electrode assembly (200).

BATTERY PACK AND VEHICLE COMPRISING SAME

Resumen de: EP4708511A1

Disclosed is a battery pack having a stable fixing structure. The battery pack includes a pack case having a predetermined accommodation space; and a cell array stack including a plurality of cell array structures that are stacked in multi stages, the cell array stack having a case mounting portion fixed to at least one side wall of the pack case.

Lithium ion battery pack and charging system

Resumen de: GB2643966A

A lithium ion battery pack (10) comprises: a lithium ion battery cell (20); a housing in which the lithium ion battery cell (20) is built and which is provided with a positive electrode terminal (Pvcc+), a negative electrode terminal (Pvcc-), and communication terminals (Pcl+, Pcl-); a BMS circuit (110) which is built in the housing and which includes a control unit that controls charging and discharging of the lithium ion battery cell (20); a communication IC (40) which causes terminal voltage values of the lithium ion battery cell (20) to output to the outside through the communication terminals (Pcl+, Pcl-) without passing through the BMS circuit (110); a first relay circuit (61) which, upon receiving a first control signal from the control unit of the BMS circuit (110), conducts or cuts off power supply to the lithium ion battery cell (20) through the positive electrode terminal (Pvcc+) and the negative electrode terminal (Pvcc-); an LDO (51) which supplies power to the control unit; and an LDO(52) which supplies power to the communication IC (40) separately from the LDO (51).

NEGATIVE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, NEGATIVE ELECTRODE COMPOSITION, NEGATIVE ELECTRODE COMPRISING SAME FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING NEGATIVE ELECTRODE

Resumen de: EP4708395A1

The present application relates to a negative electrode active material, a method for manufacturing a negative electrode active material, a negative electrode composition, a negative electrode for a lithium secondary battery including the same, and a lithium secondary battery including a negative electrode.

SECONDARY BATTERY MANUFACTURING SYSTEM AND SECONDARY BATTERY MANUFACTURING METHOD

Resumen de: EP4708372A1

Example embodiments of the present technology provide a battery cell formation device. The apparatus includes: a driving part including a driving plate and driving rods configured to move the driving plate in a first direction; and a support part including a support plate and elastic elements connected to the support plate, in which the support plate is spaced apart from the driving plate in the first direction and includes steps protruding in the first direction.

APPARATUS AND METHOD FOR FOLDING SIDES OF POUCH-TYPE BATTERY AND DIE FOR THE SAME

Resumen de: EP4708418A1

An apparatus and a method for folding sides of a pouch-type battery and a die for the same are disclosed. The apparatus for folding sides of a pouch-type battery includes a die including a folding formation space including an inlet through which a side of a pouch-type battery enters, an outlet through which the side of the pouch-type battery exits, and a side opening formed on one side of the die to guide the side of the pouch-type battery to pass therethrough, and a transfer unit that transfers the pouch-type battery along a longitudinal direction of the die. A space between the inlet and the outlet of the folding formation space is formed so that the side of the pouch-shaped battery having entered the inlet is gradually folded while moving and finally the outlet has a final folding shape.

CORE-SHELL/GLASSY SOLID-STATE ELECTROLYTE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4707258A1

Provided in the present disclosure is a composite material, which comprises LiAlPO4(OH)xF1-x and Al(H2PO4)3 compounded on the surface of the LiAlPO4(OH)xF1-x, wherein 0≤x≤1. A corresponding core-shell/glassy solid-state electrolyte material is also prepared in the present disclosure. The composite solid electrolyte has good ionic conductivity, good flexibility, a stable composite structure and thermal stability, such that when being applied to positive electrode coating, the composite solid electrolyte can slow down reduction in the capacity of a positive electrode by a coating layer, effectively remove alkaline residual lithium left on the surface in the preparation process of a positive electrode material, and convert the residual lithium into Li3PO4 favorable for ionic conductivity of the coating layer and AlPO4 capable of protecting the positive electrode. Moreover, Li3AlF6 is more stable to HF, and the good flexibility of a glassy structure thereof is beneficial to effective interfacial contact between the positive electrode and an electrolyte solution of the electrolyte, such that good interfacial ion conduction is achieved.

POWER SUPPLY MODULE AND ENERGY STORAGE SYSTEM

Resumen de: EP4709068A1

This application provides a power module and an energy storage system. The power module includes a housing, a connector, an inductor, a cold plate, and an air-liquid heat exchanger. The connector, the air-liquid heat exchanger, the cold plate, and the inductor are sequentially arranged inside the housing along a first direction. The housing includes a front plate and a rear plate. The front plate and the rear plate are oppositely arranged along the first direction. The connector is arranged between the air-liquid heat exchanger and the front plate along the first direction. The connector includes a cold plate inlet, a heat exchanger inlet, a cold plate outlet, and a heat exchanger outlet. Along a second direction, the cold plate inlet and the cold plate outlet are adjacently arranged, and the heat exchanger inlet and the heat exchanger outlet are adjacently arranged. Along a third direction, the heat exchanger inlet and one of the cold plate inlet and the cold plate outlet are adjacently arranged, and the heat exchanger outlet and the other one of the cold plate inlet and the cold plate outlet are adjacently arranged. The third direction, the second direction, and the first direction are perpendicular to each other. The power module in this application has a small size, and has good heat dissipation effect for various heat-generating components, and can reduce heat dissipation costs.

METHOD FOR RECYCLING GRAPHITE AND RECYCLED GRAPHITE

Resumen de: AU2024265063A1

The present disclosure concerns a method (100) for producing recycled graphite, the method (100) comprising the steps of providing a reclaimed graphite concentrate comprising any one or more of carboxymethyl cellulose and styrene-butadiene rubber, pre-treating (120) the reclaimed graphite concentrate by subjecting the reclaimed graphite concentrate to an oxidizing environment at a temperature in the range 250 - 380 °C, thereby reducing the total concentration of carboxymethyl cellulose and styrene- butadiene rubber to less than 0.25 %, and thermally treating (130) the pre-treated reclaimed graphite concentrate by subjecting the pre-treated reclaimed graphite concentrate to a non-oxidizing environment at a temperature of at least 2300 °C. The invention also describes a recycled graphite, use of a recycled graphite, and a battery comprising a recycled graphite.

DEVICE FOR CONTROLLING AT LEAST ONE ELECTRIC MOTOR OF A VEHICLE

Resumen de: WO2024227995A1

The invention relates to a device for controlling an electric motor (7) of a vehicle (1), comprising: a pedal assembly (14); means (23) for estimating state variables (Xi) each making it possible to estimate the value of one force from a set of forces (Fload) opposing or contributing to the progress of the vehicle (1); wherein the control means (25) comprise a memory storing a set of steady states (SSmap) of the pedal assembly (14) defining the instantaneous power (Pssp user) for keeping the speed (v) of the vehicle (1) constant according to the values of the state variables (Xi); the control means (25) being configured to accelerate or decelerate the vehicle (1) if the power applied by the user (Puser) is higher or lower, respectively, than the instantaneous power for keeping the speed of the vehicle constant (Pssp user).

ENERGY STORAGE SYSTEM

Resumen de: EP4708494A2

An energy storage system includes a module unit comprising the plurality of battery modules. The plurality of battery modules each accommodates a plurality of cell units. Each of the plurality of cell units comprise a plurality of battery cells arranged in a first direction and are arranged in a second direction, perpendicular to the first direction. A pipe portion is connected to a fire extinguishing tank storing a fire extinguishing agent and extends into the module unit. The pipe portion includes a main pipe extending from the fire extinguishing tank and a sub-pipe branched from the main pipe. One end of the sub-pipe is connected to a first branch point of the main pipe, and another end of the sub-pipe is connected to a second branch point of the main pipe. The sub-pipe extends to pass through all the plurality of battery modules.

MANUFACTURING METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4708425A1

The manufacturing method of the nonaqueous electrolyte secondary battery is provided, which includes a construction step for constructing a secondary battery whose volume is equal to or more than at least 500 cm³, an initial electrically charging step for electrically charging the secondary battery until a SOC becomes 20% to 39%, a high temperature aging step for heating up and holding the secondary battery in a high temperature range, a room temperature aging step for cooling down the secondary battery being in the high temperature range and then holding the secondary battery in a room temperature range, and an inspecting resistance step for calculating an internal resistance of the secondary battery while the secondary battery is maintained in the room temperature range.

ENERGY STORAGE SYSTEM

Resumen de: EP4708457A1

The present disclosure provides an energy storage system (10). The energy storage system (10) includes: a plurality of battery modules (40) each of which battery module (40) includes a plurality of battery cells (50); a first cooling system (100) that cools a first battery module set (42) among the plurality of battery modules (40); a second cooling system (102) that cools a second battery module set (44) among the plurality of battery modules (40); a central valve (300) that controls a flow of a refrigerant between the first cooling system (100) and the second cooling system (102); and a battery management system (200) that monitors and controls operations of the plurality of battery modules (40), the first cooling system (100), the second cooling system (102), and the central valve (300). The battery management system (200) controls the central valve (300) to control the flow of the refrigerant between the first cooling system (100) and the second cooling system (102) depending on whether an abnormality occurs in the operation of any one of the first cooling system (100) and the second cooling system (102).

BATTERY DIAGNOSIS APPARATUS AND BATTERY DIAGNOSIS METHOD

Resumen de: EP4707837A1

Disclosed is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a processor configured to control a stimulation application device to intermittently apply a second electric stimulation greater than a first electric stimulation to a target cell during a state change period, and a communication unit configured to obtain current time series data during the state change period and voltage time series data representing a change history of a full-cell voltage of the target cell during rest periods of the second electric stimulation applied in the state change period. The processor generates a measurement full-cell profile based on the current time series data and the voltage time series data, and analyzes the measurement full-cell profile to estimate a negative electrode loading amount.

THERMAL MANAGEMENT SYSTEM FOR ENERGY STORAGE CHARGING PILE, AND ENERGY STORAGE CHARGING PILE

Resumen de: EP4707052A1

Embodiments of the present disclosure provide an energy storage charging pile thermal management system and an energy storage charging pile. The system includes: a first liquid cooling loop in which a first cooling pipeline passes through a battery and a heat exchange module, where a first coolant in the first cooling pipeline is an insulating liquid or a non-insulating liquid; and a second liquid cooling loop in which a second cooling pipeline passes through a charging module and the heat exchange module, where a second coolant in the second cooling pipeline is an insulating liquid. The first cooling pipeline and the second cooling pipeline perform heat exchange through the heat exchange module. A charging converter is electrically connected to the battery, and a charging gun is electrically connected to the charging converter through a charging wiring harness. The charging module includes the charging gun and the charging wiring harness, the charging gun being electrically connected to the battery through the charging wiring harness; and the second cooling pipeline is disposed along the charging wiring harness and passes through the charging gun. In this way, in the event of coolant leakage caused by damage to the charging wiring harness, the use of insulating second coolant for cooling can reduce the occurrence of electrical leakage.

POSITIVE ELECTRODE ACTIVE MATERIAL, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4708388A1

The present invention relates to a positive electrode active material capable of improving performance of a lithium secondary battery, wherein it relates to a positive electrode active material including a lithium composite transition metal oxide in a form of a single particle; and a coating portion which is formed on the lithium composite transition metal oxide and includes an amorphous lithium compound, wherein the coating portion includes a first coating portion; and a second coating portion, wherein the first coating portion is in a form of a discontinuously formed island, and the second coating portion is in a form of a continuously formed coating layer, wherein the first coating portion and the second coating portion each independently include boron (B) and cobalt (Co), and optionally include at least one coating element selected from the group consisting of Co, Al, Ba, Ce, Cr, F, Mg, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, S, Sr, Ta, La, and Hf, and a positive electrode and a lithium secondary battery which include the same.

BATTERY CELL HAVING IMPROVED STRUCTURE AND BATTERY MODULE INCLUDING SAME

Resumen de: EP4708472A1

Disclosed are a battery cell with an improved structure and a battery module including the same, and more particularly a battery cell including an electrode assembly having an electrode tab protruding therefrom, the electrode assembly including a positive electrode, a separator, and a negative electrode, a pair of cover separators located so as to wrap the electrode assembly, the pair of cover separators including a first cover separator and a second cover separator, a pouch case configured to receive the electrode assembly and the pair of cover separators, an electrode lead having one side connected to the electrode tab and an other side protruding outward from the pouch case, and an insulating film located between the pouch case and the electrode lead and a battery module including the same.

ENERGY STORAGE DEVICE COMPRISING BATTERY MODULES

Resumen de: EP4708499A1

An energy storage device according to the present disclosure comprises a plurality of battery modules including a plurality of battery cells; a case for accommodating the battery modules; and a support frame for supporting a plurality of the battery modules in the case, wherein the support frame comprises a lower support member on which at least one battery module is supported, and an upper support member on which at least one battery module is supported.

FLEXIBLE HEAT-RESISTANT TAPE AND BUSBAR COMPRISING SAME

Resumen de: EP4707354A1

Disclosed is a heat resistant tape including a flexible tape base material, an adhesive layer added to an outer surface of one side of the tape base material, and a heat resistant layer located on a surface of the adhesive layer, wherein the heat resistant tape is reliably attached and secured by the adhesive layer exposed as the tape base material is stretched.

SECONDARY BATTERY AND SECONDARY BATTERY MODULE INCLUDING SAME

Resumen de: EP4708526A1

A secondary battery (1), including an electrode assembly (50) including a first electrode (300), a second electrode (302), and a separator (304), a case (20) configured to accommodate the electrode assembly (50), the case (20) having one opening, a cap plate (11) coupled to the one opening of the case (20), the cap plate (11) including an injection port (12) into which an electrolyte is injected, and a gas discharge portion (100) coupled to the injection port (12) of the cap plate (11), the gas discharge portion (100) configured to discharge gas generated inside the case (20).

LEAD TAB WITH IMPROVED WELDING PERFORMANCE

Nº publicación: EP4708426A1 11/03/2026

Solicitante:

FLEXION CO LTD [KR]
Flexion Co., Ltd

Resumen de: EP4708426A1

The present invention provides a lead tab comprising: a metal substrate including aluminum; and a metal layer disposed on both sides of the metal substrate; wherein the metal layer comprises 70 to 99.9 wt% of chromium and wherein the lead tab has an ultrasonic welding strength of 70 kgf/mm² or more.