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SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, SECONDARY BATTERY AND ELECTRICAL DEVICE

Resumen de: EP4604209A1

Provided in the present application is a silicon-based negative electrode active material. The silicon-based negative electrode active material includes silicate containing alkaline earth metal elements, and the silicon-based negative electrode active material contains both K element and P element.

SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4604202A1

A silicon-based negative electrode active material, comprising Si and MSiO3, where M comprises one or more alkaline earth metal elements, has, in an XRD diffraction pattern of the silicon-based negative electrode active material, a first diffraction peak at a diffraction angle 20 between 26° and 26.8° having a half peak width of βA, and a second diffraction peak at a diffraction angle 2θ between 31° and 32° having a half peak width of βB, where in the silicon-based negative electrode active material, it has 1.5 ≤ βA / βB ≤ 5.0.

FILLER COMPOSITION, COMPOSITE MATERIAL AND COMPOSITE MATERIAL LAYER WITH THERMAL BARRIER PROPERTIES

Resumen de: WO2024118886A1

The subject application relates to a filler composition, composite material and composite material layer with thermal barrier properties. The present disclosure relates to a filler composition may include a ceramization filler component at a content of at least about 75 wt.% and not greater than about 95 wt.% for a total weight of the filler composition, a structure promoter component at a content of at least about 0.1 wt.% and not greater than about 7.0 wt.% for a total weight of the filler composition, a flux component at a content of at least about 0.1 wt.% and not greater than about 7.0 wt.% for a total weight of the filler composition, and a flame retardant component at least about 5.0 wt.% and not greater than about 20.0 wt.% for a total weight of the filler composition.

CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, CATHODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY

Resumen de: EP4604212A1

The positive electrode active material according to the present invention includes a single particle composed of one single nodule, a quasi-single particle, which is a composite of at most 30 nodules, or a combination thereof, wherein the positive electrode active material includes a lithium nickel-based oxide having a molar ratio of Ni of at least 60 mol% in the total moles of transition metals, and a negative skewness factor (NSF) represented by Equation 1 below is 0.20 to 0.35: NSF=D50−D10/ImaxIn Equation 1 above, D50 is a particle diameter at a cumulative volume of 50% in a volume cumulative particle size distribution graph of the positive electrode active material, D10 is a particle diameter at a cumulative volume of 10% in a volume cumulative particle size distribution graph of the positive electrode active material, and Imax is a maximum volume fraction in the volume cumulative particle size distribution graph of the positive electrode active material.

COOLING FLOOR MEMBER AND METHOD FOR MANUFACTURING COOLING FLOOR MEMBER

Resumen de: EP4604271A1

A cooling floor member (100) is a cooling floor member (100) for cooling a battery cell, including a metal underfloor material (101), a flat plate-like metal floorboard (102) which is arranged face to the metal underfloor material (101), and which has a surface opposite to the metal underfloor material (101) that comes into contact with the battery cell, a partition member (105) inserted between the metal underfloor material (101) and the flat plate-like metal floorboard (102) without being joined thereto, and a joint (130) in which the outer peripheral edge of the metal underfloor material (101) and the outer peripheral edge of the flat plate-like metal floorboard (102) are directly and continuously joined, wherein a region surrounded by the metal underfloor material (101), the flat plate-like metal floorboard (102), and the partition member (105) is a cooling liquid flow path (104) through which a cooling liquid flows.

A METHOD TO OBTAIN PURE GRAPHITE FROM LEACH RESIDUE OF SPENT LITHIUM-ION BATTERIES

Resumen de: CN120152939A

With the wide use of lithium ion batteries (LIBs), the recovery and reuse of LIBs attract wide attention. However, recycling and recovery of graphite anode material are neglected due to low added values and harsh separation steps. Although some direct physical recovery methods have been reported, all these methods are limited by harsh separation steps and laboratory scale. The invention relates to a method for recovering high-purity graphite from extraction residues of waste lithium ion batteries. The method is simple and easy to implement, and 99.9% pure graphite is provided. In addition, the method for recovering the high-purity graphite is clean, green, environmentally friendly and commercially feasible.

TERMINAL BLOCK, TERMINAL BLOCK ASSEMBLY AND BATTERY MODULE

Resumen de: EP4604263A1

A terminal block (11), a terminal block assembly (10) and a battery module (100) are provided. The terminal block (11) includes at least two cell connection bodies (111, 112) and a terminal connection body (113). The at least two cell connection bodies (111, 112) are arranged at intervals, and the cell connection bodies (111, 112) are configured to connect with poles of cells. The terminal connection body (113) is connected between two adjacent cell connection bodies (111, 112). The cell connection body (111, 112) is provided with an accommodating groove (11b), which is configured to accommodate and mount a temperature sensor.

APPARATUS FOR MANUFACTURING SECONDARY BATTERY AND METHOD FOR MANUFACTURING SECONDARY BATTERY USING SAME

Resumen de: EP4604190A1

Example embodiments provide a secondary battery manufacturing apparatus. The secondary battery manufacturing apparatus includes a drying chamber, and a water spray device configured to spray water onto an electrode sheet in the drying chamber, in which the water spray device includes a nozzle configured to be rotated.

BATTERY CELL, BATTERY, ELECTRIC DEVICE, AND ASSEMBLY METHOD FOR BATTERY CELL

Resumen de: EP4604302A1

A battery cell, a battery, an electric device, and an assembly method for a battery cell. The battery cell comprises: a case assembly, which comprises a case and first post terminals, wherein the case comprises a case body and a case cover, the case body having an opening, the case cover covering the opening, and the case body being provided with the first post terminals; and a battery cell assembly, which comprises an active substance coating portion and electrically conductive portions, wherein the active substance coating portion is accommodated in the case body, and the electrically conductive portions are electrically connected to the active substance coating portion and the first post terminals. The present application can reduce the probability of cracking occurring at a weld joint between the case body and the case cover during use of the battery, thereby improving the reliability of the battery cell.

BATTERY MODULE AND BATTERY PACK INCLUDING SAME

Resumen de: EP4604310A1

The present invention relates to a battery module. The battery module includes a pouch-type cell provided with an electrode assembly, a pouch-type exterior configured to accommodate the electrode assembly, and an electrode lead electrically connected to the electrode assembly to extend to the outside of the pouch-type exterior, and a support frame provided with a lower plate disposed to correspond to a bottom surface of the pouch-type cell, and a pair of side plates extending upward from both ends of the lower plate in a width direction, respectively, to define an accommodate space for accommodating at least a portion of the pouch-type cell together with the lower plate, wherein the electrode lead is disposed on an upper portion of the pouch-type exterior so as to be exposed to the outside of the support fame through an upper opening of the support frame.

BATTERY MODULE

Resumen de: EP4604286A1

A battery module according to an embodiment of the present invention may include: a module frame; a plurality of pouch-type battery cells disposed parallel to each other within the module frame; and a plurality of vent holes defined to pass through one surface of the module frame. Each of pouch-type battery cells may include: an electrode assembly provided with an electrode lead; a battery case comprising an accommodation part configured to accommodate the electrode assembly, a short-side sealing part which is disposed on a portion of a circumference of the accommodation part and from which the electrode lead protrudes, and a long-side sealing part disposed on the other portion of the circumference of the accommodation part and folded toward the accommodation part; and a plurality of fixing members attached to the battery case to fix the long-side sealing part in a folded state and arranged to be spaced apart from each other in a longitudinal direction of the long-side sealing part. In each of the vent holes, an area that does not overlap the fixing member may be wider than an area that overlaps the fixing member.

BATTERY PACK AND VEHICLE

Resumen de: EP4604291A1

A vehicle with a battery pack. The battery pack comprises a tray, a cell module and a liquid cooling plate. The tray comprises a tray bottom plate and tray side beams, wherein the tray bottom plate and the tray side beams are connected to form an accommodating space; the cell module is located in the accommodating space and comprises a plurality of cells, w herein each cell is provided with a first explosion-proof valve; and the liquid cooling plate is located between the cell module and the tray bottom plate and is arranged on the tray bottom plate, and the liquid cooling plate is provided with a plurality of through holes, each through hole penetrating through a first surface and a second surface of the liquid cooling plate. The cell module is in contact with the first surface, and the first explosion-proof valves of the cells are opposite the through holes; and a first channel is formed between the second surface of the liquid cooling plate and the tray bottom plate, and a second channel, which is in communication with the first channel, is formed in the tray side beams, so that a smoke flow generated at the cell module flows to the second channel.

BATTERY PACK ASSEMBLY AND ELECTRIC VEHICLE

Resumen de: EP4603312A1

An electric vehicle, provided with a battery pack assembly. The battery pack assembly comprises a frame, a composite cold plate and at least one battery cell; the frame comprises a tray and exhaust channels in communication with the outside; the exhaust channels are arranged on two opposite sides of the tray; the composite cold plate is arranged on the tray; the composite cold plate comprises a flow passage plate, and a concave rib-convex rib structure is formed on the surface of the flow passage plate; a concave rib is arranged between every two adjacent convex ribs; cold plate flow passages are defined by concave ribs and the tray, and the cold plate flow passages are in communication with the exhaust channels; the battery cell is arranged on the composite cold plate; poles of the battery cell face the composite cold plate; a first explosion-proof valve is provided on the side of the battery cell facing the composite cold plate, and the first explosion-proof valve is in communication with the cold plate flow passages.

SELF-CHECKING-BASED FIRE-FIGHTING AIR INTAKE AND DISCHARGE CONTROL SYSTEM, AND CONTROL METHOD

Resumen de: EP4603927A1

A self-checking-based fire-fighting air intake and discharge control system, which is applied to measure a combustible gas in an energy storage container (40). The fire-fighting air intake and discharge control system comprises: a gas measurement module (11), which is used for measuring the concentration of a combustible gas in an energy storage container (40); an air intake and discharge module (12), which is used for controlling the circulation of the gas in the energy storage container (40); and a control module (10), which is used for controlling the operation of the gas measurement module (11) and the operation of the air intake and discharge module (12), and controlling, when the concentration of the combustible gas exceeds a preset concentration threshold value, the air intake and discharge module (12) to discharge the combustible gas. The fire-fighting air intake and discharge control system can automatically detect a fault problem of the system and feed back same in a timely manner, and can also measure multiple environmental factors; and the system regularly performs self-checking, and stores and uploads data, and an operation and maintenance person can retrieve operation data, predetermines an on-site operation situation, and maintains the system and a device.

FLUID SPRAYING DEVICE FOR DRYING ELECTRODE SHEET AND ELECTRODE SHEET DRYING DEVICE INCLUDING SAME

Resumen de: EP4604189A1

According to exemplary embodiments, a fluid spraying device for drying electrode sheets is provided. The fluid spraying device for drying electrode sheets includes: a fluid storage tank; a plurality of flow paths in fluid communication with the fluid storage tank; a first side nozzle coupled to one of the plurality of flow paths; a second side nozzle coupled to one of the plurality of flow paths; at least one center nozzle coupled to one of the plurality of flow paths, wherein the first and second side nozzles and the center nozzle are configured to be movable in a first direction perpendicular to the machine direction (MD) of the electrode sheet.

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4604254A1

The embodiment of the present application provides an electrode assembly, a battery cell, a battery, and an electric apparatus, which belong to the technical field of batteries. Here, the electrode assembly comprises a plurality of structural units laminated in a first direction, the structural unit comprising a first plate and a second plate. The first electrode plate comprises a bending section and a plurality of straight sections, and two adjacent straight sections are spaced apart in a first direction and connected to one bent section. The second plate has a polarity opposite to that of the first plate, and alternates with the straight sections in the first direction. This structure can reduce the deflection of the electrode assembly during molding, thereby reducing the risk of misalignment between the plates to improve the reliability of the electrode assembly.

SODIUM BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4604241A1

Embodiments of this application provide a sodium battery cell, a battery, and a power consuming apparatus. The sodium battery cell includes: a negative electrode plate, a positive electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer. The positive electrode plate includes a positive electrode current collector and a positive electrode film layer. At least one of the negative electrode film layer, the positive electrode film layer, and the electrolyte solution includes a lithium-containing compound. The technical solution of this application can improve the cycle performance of the sodium battery cell.

WINDING DEVICE

Resumen de: EP4604225A1

Disclosed is a winding device in the present disclosure. The winding device includes a material-placing mechanism, a mounting table, a winding member and a restraining member, wherein the material-placing mechanism is configured to convey a material strip; the winding member includes a winding needle base and a plurality of winding needles provided on the winding needle base, the winding needle base is rotatably provided on the mounting table, with a winding needle gap formed between the plurality of winding needles and configured to allow the material strip to pass through; the restraining member is provided outside the winding needle gap and configured to fix the material strip protruding from the winding needle gap with a preset force F1, a winding tension applied to the material strip when the winding needle base drives the winding needle to rotate is F2, and F1 is less than F2 so as to wind both a preset length of the material strip and the material strip protruding from the winding needle gap onto the winding needle when the winding needle base drives the winding needle to rotate. The winding device provided by the present disclosure can ensure the winding performance for small-sized cells.

HEAT EXCHANGE ASSEMBLY, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4604267A1

The present application discloses a heat exchange assembly, a battery and an electrical device. The heat exchange assembly includes a current collecting piece and a plurality of heat exchange pieces. The heat exchange piece is constructed with a first flow channel and a first joint portion communicating with the first flow channel. The current collecting piece is constructed with a second flow channel and a plurality of second joint portions. The plurality of second joint portions each communicate with the second flow channel and are configured to be connected to the first joint portions of the plurality of heat exchange pieces respectively, such that the second flow channel of the current collecting piece communicates with the first flow channels of the plurality of heat exchange pieces. When the heat exchange assembly and battery units form a group, the assembly procedure is simple, and the assembly and fabrication efficiency is high.

SECONDARY BATTERY

Resumen de: EP4604231A1

This secondary battery includes an insulating sheet (700) that covers an electrode assembly, the electrode assembly includes a first surface, the insulating sheet (700) includes a first region (R1) constituted of a vicinity of one end portion of the insulating sheet (700) and a second region (R2) constituted of a vicinity of the other end portion of the insulating sheet (700), the first region (R1) and the second region (R2) cover the first surface, and an overlapping region (OR) in which the second region (R2) overlaps with the first region (R1) is provided, in a width direction of the electrode assembly, the overlapping region (OR) includes a central region (CR) and an end-portion region (PR) located beside each of both sides of the central region (CR), and the central region (CR) is provided with a recess (710s) as a non-overlapping region that reduces an overlapping area of the overlapping region (OR).

ELECTRIC CELL AND METHOD FOR MANUFACTURING SAME

Resumen de: WO2025109480A1

The invention relates to an electric cell (10) comprising - a cylindrical stack (1) that consecutively comprises a first electrode sheet, a first separator, a second electrode sheet having an opposite polarity to the first electrode sheet, and a second separator; - a housing (6) comprising a cylindrical metal casing (61) having an inner face (62) defining a cavity in which the cylindrical stack (1) is accommodated; - a current collector (4) connected to the first electrode sheet; wherein the current collector (4) comprises, on its periphery, a rim (41) that comprises an outer lateral face (42) intended to come into contact with the inner face (62); an inner lateral face (43) opposite the outer lateral face (42); an edge face (44) that connects the outer lateral face and the inner lateral face, and is intended to receive a weld bead (7) to weld the collector (4) to the inner face (62).

GAS-PERMEABLE FILM, POUCH EXTERIOR MATERIAL CONTAINING SAME, AND SECONDARY BATTERY

Resumen de: EP4603280A1

A gas-permeable film of the present disclosure includes a first polymer layer, a second polymer layer, and a third polymer layer interposed between the first polymer layer and the second polymer layer, wherein the third polymer layer includes polypropylene and polytetrafluoroethylene at a weight ratio of 9:1 to 1:9. The gas-permeable film has excellent gas permeability, and thus, when applied to a secondary battery, the gas-permeable film may effectively discharge a gas generated inside the secondary battery.

ANODE FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4604217A1

The anode for lithium secondary batteries according to the present disclosure includes: an anode current collector; and an anode composite layer, containing a silicon-based anode active material and a binder, on the anode current collector, wherein the binder is a crosslinked polymer having an ester bond, and has a melting enthalpy (ΔHm) of 230 J/g or higher as measured by differential scanning calorimetry (DSC).

Bordsystem eines Fahrzeugs und Verfahren zur Bewertung eines SOH einer Hochspannungsbatterie

Resumen de: AT527967A1

Die vorliegende Erfindung betrifft ein Bordsystem (100) und ein Verfahren zur Bewertung eines Alterungszustands (SOH) einer Hochspannungsbatterie (30) mit mehreren Batteriezellen (31). Funktionale Module des Bordsystems und Verfahrensschritte betreffen: ein Einstellen (11, S11) eines Entladeimpulses über einen Messwiderstand (22) und einen Halbleiterschalter (21); ein Messen (12, S12) von Zellspannungen einzelner Batteriezellen (31) in einer vorstimmten Frequenz; ein Bestimmen (13, S13) von Spannungsdifferenzen zwischen minimalen Zellspannungen und maximalen Zellspannungen; ein Bestimmen (14, S14) eines Innenwiderstands der Hochspannungsbatterie (30), und ein Bestimmen (15, S15) eines SOH basierend auf einem Kennfeld.

Matériaux d’électrolytes polymères solides comprenant une matrice de caoutchouc thermoplastique anionique

Nº publicación: FR3159258A1 15/08/2025

Solicitante:

SAFT [FR]
TOTALENERGIES ONETECH [FR]
UNIV DE MONTREAL [CA]
SAFT,
TotalEnergies OneTech,
UNIVERSITE DE MONTREAL

Resumen de: FR3159258A1

Matériaux d’électrolytes polymères solides comprenant une matrice de caoutchouc thermoplastique anionique La présente invention concerne un matériau d’électrolyte polymère solide comprenant un sel de métal alcalin et une matrice de caoutchouc thermoplastique, dans lequel la matrice de caoutchouc thermoplastique comprend un mélange d'au moins une phase élastomère réticulée et d'au moins une phase polymère thermoplastique, ladite phase élastomère réticulée comprenant des chaînes de polymère élastomère portant un ou des groupements anioniques. Figure pour l'abrégé : Néant