Alerta

ELECTROLYTES THAT INCLUDE LITHIUM IODIDE AND BATTERIES THAT INCLUDE SUCH ELECTROLYTES

Resumen de: WO2025081003A1

Presented herein are, infer alia, electrolytes for electrochemical cells, such as lithium sulfur secondary batteries. The electrolytes comprise one or more lithium salts. One or more of the lithium salts is lithium iodide. Lithium iodide is a primary electrolytic salt. Secondary batteries that include the disclosed electrolytes are also disclosed.

LOWER CASE AND CASE HAVING SAME, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: EP4794082A1

0001 A lower case (10) and a case (100) having same, a battery pack (1000), and an electric device (10000), The lower case (10) is used for the battery pack (1000), and the lower case (10) comprises: a bottom plate (11) extending in a first direction within a horizontal plane, wherein two side edges of the bottom plate (11) in a second direction within the horizontal plane are provided with first connecting portions, the first connecting portions are used for connecting an upper case (20) of the battery pack (1000), and the first direction intersects with the second direction; and first side plates (12), wherein there are two first side plates (12) respectively arranged at two ends of the bottom plate (11) in the first direction, the first side plates (12) are vertically arranged, and the lower ends of the first side plates (12) are fully welded to the bottom plate (11).

BUSBAR, BATTERY PACK, AND VEHICLE

Resumen de: EP4794108A1

0001 A vehicle (1) having a battery pack (10), the battery pack (10) having a busbar (200). The busbar (200) comprises: a non-conductive sealing pressing plate (2003), a first connecting component (2001), and a second connecting component (2002). The first connecting component (2001) is disposed at a first end of the non-conductive sealing pressing plate (2003), and the second connecting component (2002) is disposed at a second end of the non-conductive sealing pressing plate (2003), the first connecting component (2001) being electrically connected to the second connecting component (2002).

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: EP4794049A1

0001 This application discloses a secondary battery and an electronic device. The secondary battery includes a packaging bag, an electrode assembly, a first tab, a first insulation tape, and a second insulation tape. The electrode assembly is accommodated in the packaging bag. The first tab is electrically connected to the electrode assembly and protrudes out of the packaging bag along a first direction. The electrode assembly assumes a jelly-roll structure and includes a first end surface, a first side surface, a first curved surface, and a second side surface. The first side surface, the first curved surface, and the second side surface are disposed around a periphery of the first end surface. The first insulation tape includes a tape body and a first protruding portion. The tape body is bonded to the first side surface, the first curved surface, and the second side surface separately. The first protruding portion exceeds a negative electrode plate of the electrode assembly along the first direction. The first protruding portion includes a first section and a second section. The second insulation tape is bonded to the first end surface, the first section, and the second section separately. In this way, this application can improve the hot box test pass rate of the secondary battery.

SYSTEMS AND METHODS FOR CONTROLLED BATTERY HEATING

Resumen de: WO2025081083A1

Systems and methods for low temperature charging a battery, which may be performed alone or in combination with heating a battery. In some aspects, the low temperature charging method involves obtaining a susceptance response of a battery, and upon a change in the susceptance response of the battery, altering a charge signal to the battery. It is understood that changes in susceptance are correlated with phase changes of a battery electrolyte – e.g., as a battery warms from a low temperature where the electrolyte is partially or completely frozen (solid) to a higher temperature where it changes to a liquid state, there is a change in susceptance. As the electrolyte changes from solid to liquid as understood from a change in the susceptance response, the charge may be increased as the electrolyte thaws.

BATTERY PACK AND STRUCTURE

Resumen de: EP4794074A1

Provided is a battery pack including a mica plate that is resistant to damage and is lightweight. The battery pack of the present invention includes a module with a plurality of battery cells; a case containing the module; and a mica plate disposed between the module and the case and having a first main face and a second main face opposite to the first main face, the battery pack further including an attaching member disposed on a surface of the mica plate to fix the mica plate, an area S1 of the attaching member being not less than 5.8 × 10^-6 times an area S2 of the mica plate in a plan view of the mica plate.

QUALITY CONTROL SYSTEM FOR SECONDARY BATTERY AND QUALITY CONTROL METHOD USING SAME

Resumen de: EP4794017A1

In order to provide a secondary battery quality control system and a secondary battery quality control method that allow performance of a completed secondary battery to be predicted on the basis of structure information of an electrode mixture sheet produced during manufacturing steps, the following configuration is provided. There are provided the quality control system for a secondary battery includes: a storage unit that stores a performance prediction model obtained by formulating correlation between structure information of an electrode mixture sheet and performance information of the secondary battery manufactured by applying the electrode mixture sheet; and a performance prediction unit that inputs the structure information of the newly manufactured electrode mixture sheet to the performance prediction model to predict electrode performance of the secondary battery manufactured by applying the electrode mixture sheet, and the secondary battery quality control method.

MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4793239A1

The present invention relates to a method for manufacturing a positive electrode active material for a lithium secondary battery, the method comprising: preparing a manganese-excess transition metal precursor having a molar ratio (Mn/M) of manganese (Mn) to transition metal (M) of 0.5 to 0.75; oxidizing the transition metal precursor by performing a first calcination; and forming a lithium and manganese-excess lithium transition metal oxide by lithiating the oxidized transition metal precursor through a second calcination.

BATTERY AND ELECTRIC DEVICE

Resumen de: EP4794077A1

Disclosed in the present invention are a battery and an electric device. The battery comprises: a case; battery cell rows each comprising a plurality of battery cells arranged in a first direction, wherein the plurality of battery cell rows are stacked in a second direction to form a battery cell array and placed in the case; and an elongated component, wherein at least one elongated component is provided on the surface of the side of the battery cell rows facing away from a bottom plate of the case in a third direction, the elongated component extends in the first direction and is connected to at least one battery cell in the battery cell rows, and the first direction is perpendicular to both the second direction and the third direction.

BATTERY AND ELECTRIC DEVICE

Resumen de: EP4794078A1

0001 Disclosed are a battery and an electric device. The battery comprises a case; battery cell rows, each comprising a plurality of battery cells arranged in a first direction, wherein the plurality of battery cell rows are stacked in a second direction to form a battery cell array and are placed in the case; and a thermal management part disposed on the sides of the plurality of battery cells in a third direction for heat exchange with the battery cells, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

ELECTROLYTE INJECTION SYSTEM AND ELECTROLYTE INJECTION METHOD

Resumen de: EP4794113A1

0001 An electrolyte injection system (100) and an electrolyte injection method. The electrolyte injection system (100) comprises an electrolyte injection device (110), an upper computer (120) and a control device (130), wherein the electrolyte injection device (110) comprises at least one electrolyte injection pump (111); the control device (130) is configured to send to the upper computer (120) pump information of a target electrolyte injection pump (111a) currently to be subjected to electrolyte preparation in the electrolyte injection device (110); the upper computer (120) is configured to: acquire pump information from the control device (130), determine, on the basis of the pump information and from among bearing positions of a battery cell tray currently entering the electrolyte injection device (110), a target bearing position currently corresponding to the target electrolyte injection pump (111a), determine, on the basis of a first correlation, a target electrolyte injection parameter corresponding to the target bearing position, with the first correlation comprising electrolyte injection parameters respectively corresponding to at least one bearing position, and issue the target electrolyte injection parameter to the target electrolyte injection pump (111a); and the target electrolyte injection pump (111a) is configured to perform electrolyte preparation according to the target electrolyte injection parameter, and after electrolyte preparation, perform electrolyte

BATTERY COMPRISING AT LEAST ONE STACK OF ELECTRICAL CELLS AND ASSOCIATED ELASTIC DEVICE FOR COMPENSATING FOR GAPS

Resumen de: WO2025078776A1

The invention relates to a battery (1) for storing electrical energy, comprising: at least one stack (7) of electrical cells (6); and a housing including a base (3) to which the stack (7) of cells of the battery (1) is attached. The battery (1) comprises: at least two compression plates (8) which are arranged on either side of the stack; means (10) for attaching the compression plates (8) to the base (3); at least one tie rod (12) which is capable of pressing the compression plates (8) against the cells (6) of the stack (7); and at least one elastic device (15) for compensating for gaps in the stack in a direction of dimensional variation of the stack, the device comprising at least one flat-wire wave spring.

MEASURING DEVICE AND MEASURING METHOD FOR DETERMINING AT LEAST ONE PROPERTY OF A PLANAR ELEMENT OF THE BATTERY CELL-PRODUCING INDUSTRY

Resumen de: WO2025078694A1

The invention relates to a measuring device (10) for determining at least one property of a planar element (31) of the battery cell-producing industry, wherein the measuring device (10) is arranged in a measuring relationship to a surface (32) of a planar element (31) placed at the top of an element stack (30) and is configured to determine image data of the surface (32), comprising a data processing device (50) which is configured to process the determined image data and herefrom to determine at least one property of the planar element (31). The measuring device (10) has at least one laser measuring device (51) which is configured to measure the distance to the surface (32) of the planar element (31) by means of a laser beam (57) directed onto the planar element, wherein the data processing device (50) is configured to link the determined image data and the distance data from the at least one laser measuring device (51).

POSITIVE ELECTRODE ACTIVE MATERIAL POWDER AND METHOD FOR MANUFACTURING A POSITIVE ELECTRODE ACTIVE MATERIAL

Resumen de: WO2025078476A1

The present invention relates to a method for reducing a Na-loss in preparing a positive electrode active material powder comprising particles having a substantially octahedral shape, comprising: mixing a Li source, a precursor comprising transition metals and a sintering flux to obtain a mixture; and heating the mixture to obtain a heated material, wherein the transition metals comprise Ni, optionally Co, and optionally Mn, wherein the sintering flux is Na2CO3, and wherein the Na-loss is a difference between a first Na content in the mixture and a second Na content in the heated material, the first and second Na contents being measured via ICP-OES and being relative to a total amount of the transition metals.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME

Resumen de: EP4794025A1

The present invention is a negative electrode active material containing negative electrode active material particles, in which the negative electrode active material particles contain a porous carbon structure, a low-valent nano silicon oxide in an amorphous state is dispersed within the porous carbon structure, the low-valent nano silicon oxide includes states represented by SiOx where "x" is less than 1.0, and the low-valent nano silicon oxide has a particle size of 50 nm or less on average, the particle size being determined by image processing of a cross-sectional TEM image. This provides the negative electrode active material capable of increasing a capacity thereof while maintaining battery characteristics.

SOLVENTLESS ELECTRODES

Resumen de: CN122070610A

An electrode for an energy storage device is disclosed, the electrode comprising a solvent-free electrode film. The solventless film includes a porous network of active material joined together by binder particles. The binder particles comprise a high density polyethylene polymer.

BATTERY, BATTERY PACK AND ENERGY STORAGE SYSTEM

Resumen de: EP4794110A1

0001 This application provides a battery, a battery pack, and an energy storage system. The battery includes a housing, an electrode assembly, a Mylar film, an insulating porous film, and a bottom tray. The electrode assembly, the Mylar film, the insulating porous film, and the bottom tray are all accommodated in the housing. A bottom surface of the electrode assembly, the Mylar film, the insulating porous film, and the bottom tray are sequentially stacked, and the insulating porous film on the bottom surface includes a plurality of through holes. The through hole of the insulating porous film can reduce flow of dust that falls off from the electrode assembly between the electrode assembly and the housing, and reduce a possibility that a micro short circuit is formed between the bottom surface of the electrode assembly and the housing.

BATTERY PACK HAVING MULTIPLE CONTACT POINTS AT POSITIVE AND NEGATIVE TERMINALS

Resumen de: EP4794090A1

The present application relates to the technical field of new energy batteries, and in particular to a battery pack with multiple contact points for positive and negative terminals, which includes a battery pack housing, chutes are defined on two side walls of the battery pack housing, battery-side contact elements are located in the chutes, ribs for insertion into the chutes are arranged on a device housing of a charging and discharging device, and tool-side contact elements for cooperating with the battery-side contact elements are arranged on the ribs.

VENTING SYSTEM

Resumen de: EP4793174A1

An aircraft has an energy storage system comprising a first battery 6a comprising first and second battery modules 10, 11. A venting system 7 is provided comprising a first battery module exhaust 18, a second battery module exhaust 19 and a first battery manifold 20 arranged to connect the first and second battery module exhausts to a first flow path extending to an exhaust port 8 of the aircraft. The first battery manifold 20 includes a first valve 28 comprising a first flap 29 having a first position in which fluid flow from one of the first and second battery module exhausts is restricted; a second position in which fluid flow from the other of the first and second battery module exhausts is restricted; and a neutral position in which fluid can flow from both first and second battery module exhausts to the first flow path. The first valve 28 is biassed towards the neutral position. The venting system of the present invention is more lightweight than was hitherto achievable, protects other modules and components of the energy storage system from the heat of gas emissions and reduces pressure losses, so that the emitted gas is more likely to exit the aircraft, typically via a burst disc

NOTCHING MOLD AND METHOD FOR NOTCHING AN ELECTRODE PLATE

Resumen de: EP4793008A1

0001 A notching mold (10) comprises a lower plate(110); an upper plate (120) disposed above the lower plate (110); a die plate (410) disposed on the lower plate (120) and supporting a die (420); the die (420); a punch plate (510) between the upper plate (120) and the die plate (410); a punch pusher (530) between the upper plate (120) and the die plate (410); a punch (520) below the punch plate (510) and the punch pusher (530) and above the die plate (410); and a guide post (700) connected to the die plate (410) and the punch (520), wherein the die (420) comprises an opening (OP), wherein the punch (520) is coupled with the punch plate (510), wherein the punch (520) comprises a first region (1A) configured to be inserted into the opening (OP) and a second region (2A) disposed outside the opening (OP), and wherein the guide post (700) is configured to guide movement of the punch (520).

BATTERY PROTECTION PLATE, BATTERY PACK, AND VEHICLE

Resumen de: EP4793035A1

0001 A battery protection plate (100), a battery pack, and a vehicle are provided, which relate to the technical field of battery packs. The battery protection plate (100) includes a base layer (1) and an energy-absorbing layer (2). The energy-absorbing layer (2) is arranged on a side of the base layer (1). A tensile strength and an elastic modulus of the base layer (1) are greater than a tensile strength and an elastic modulus of the energy-absorbing layer (2), and an elongation at break of the energy-absorbing layer (2) is greater than an elongation at break of the base layer (1).

APPARATUS FOR CLEANING ELECTRODE ROLLING ROLL

Resumen de: EP4792944A1

0001 According to one embodiment of the present disclosure, provided is a device for cleaning an electrode rolling roll, comprising: a cleaning member provided so as to allow a surface of the electrode rolling roll to come into contact with a cleaning cloth, a spray nozzle that sprays a cleaning liquid onto the cleaning cloth, a control unit that adjusts the sprayed amount of the cleaning liquid, and a monitoring unit that monitors the sprayed amount of the cleaning liquid, wherein the cleaning liquid is a distilled water, and wherein the control unit adjusts the amount of the cleaning liquid sprayed once by the spray nozzle so as to be within a range of 0.05 ml to 0.2 ml.

BATTERY PACK AND ENERGY STORAGE DEVICE

Resumen de: EP4794060A1

Embodiments of this application relate to the field of energy storage technologies, and a battery pack and an energy storage device are provided. A heating film is disposed in the battery pack, to increase a temperature of an operating environment of a cell in the battery pack. Wiring density of heating wires at different positions in the heating film is controlled, to control heating efficiency at the different positions in the heating film, and selectively heat cells at the different positions to different extents, so that different cells of the battery pack can be heated to a preset temperature range. In this way, temperatures of the different cells of the battery pack may be neither excessively low to result in low charging/discharging efficiency, and nor excessively high to affect a service life or safety performance of the cells. Therefore, a service life and safety performance of the battery pack are effectively improved while charging/discharging efficiency of the battery pack is ensured, thereby improving a service life and safety of the energy storage device.

POSITIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND BATTERY

Resumen de: EP4794020A1

0001 A positive electrode active material includes a secondary particle (2), wherein: the secondary particle (2) includes a first particle group, a second particle group, and a carbon layer (1c); each of the first particle group and the second particle group is composed of primary particles (1); the first particle group has a larger average particle diameter than the second particle group; the primary particles contain an olivine-type compound; the carbon layer (1c) covers at least part of a surface of the primary particle (1) and satisfies a relationship of T < T where T represents an average thickness of the carbon layer (1) on the primary particles (1) belonging to the first particle group; and T represents an average thickness of the carbon layer (1c) on the primary particles (1) belonging to the second particle group.