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BI-MATERIAL COOLING VALVES

Resumen de: US2024113354A1

A electric vehicle battery thermal regulation system configured to prioritize a flow of cooling fluid past at least one of a battery cell experiencing a thermal event, including a plurality of conduits through which a flow of thermal regulation fluid can flow, portions of the thermal regulation system positioned in close proximity to the at least one of a plurality of battery cells to provide cooling to said plurality of battery cells, wherein the thermal regulation system includes one or more bi-material valves configured to at least one of open or close in response to a change in temperature of the thermal regulation fluid, thereby rerouting a flow of the thermal regulation fluid through the plurality of conduits to prioritize cooling to one or more battery cells experiencing a thermal event.

Method for preparing lithium iron phosphate by recycling waste batteries

Resumen de: GB2637897A

Provided is a method for preparing lithium iron phosphate by recycling waste batteries. First, waste lithium iron phosphate power batteries are pretreated to obtain pure lithium iron phosphate waste; next, each element is supplemented according to a ratio; and a lithium iron phosphate product is prepared by means of spray pyrolysis. The droplets of lithium iron phosphate sprayed by spray pyrolysis have high sphericity and uniform particle size distribution. After high temperature reaction, spherical lithium iron phosphate is obtained. The spheroidization of lithium iron phosphate is beneficial to increase the specific surface area of the material and increase the volume specific energy of the material. When removing impurities, waste heat of high-temperature lithium iron phosphate produced by spraying is used to atomize pure water to remove impurities by spraying, so that the atomized pure water is instantly evaporated, taking away impurities such as hydrogen chloride in the lithium iron phosphate particles. The prepared lithium iron phosphate cathode material has almost the same capacity and charge-discharge performance as the first synthesized lithium iron phosphate cathode material.

COVER DEVICE FOR A BATTERY BOX OF AN ELECTRIC OR HYBRID VEHICLE, COMPRISING INTERMEDIATE SPACERS

Resumen de: WO2024074772A1

The invention relates to a cover device for a flat battery box (2) extending under the floor of an electric or hybrid motor vehicle body with an intermediate air gap, which device comprises a cover (6) comprising a metal sheet having a substantially flat central face with fastening edges along its contour (8), and comprising a plurality of spacer blocks (20, 22) for creating a space to the floor of the body, which spacer blocks are fastened to the top of the central face, each block (20, 22) comprising at least one rigid spacer and one flexible spacer which are stacked.

COOLING DEVICE FOR A BATTERY MODULE

Resumen de: WO2024074500A1

The invention relates to a structure (2) for producing a cooling device (1) for a battery module. According to the invention, the structure (2) comprises a first panel (20) comprising a first cooling circuit (200), a second panel (22) and a third panel (24) comprising a second cooling circuit (240), the first panel (20) being connected to the second panel (22) by a first folding area (21), the second panel (22) being connected to the third panel (24) by a second folding area (23).

DEVICE AND METHOD FOR CONNECTING MATERIAL WEBS FOR THE PRODUCTION OF ENERGY CELLS

Resumen de: CN120019013A

The invention relates to a device (10) and a method for connecting material webs (11, 12) for producing energy cells, in which a terminating material web (11) can be connected to a new material web (12). The terminating material web (11) and the new material web (12) can be guided in a connecting section (13) at a distance from each other, two pivotable or rotatable pressing elements (14, 15) having pressing surfaces (16, 17) are provided, the pressing element is configured to press the terminating material web (11) and the new material web (12) against each other in the connecting section (13) and to connect the terminating material web (11) and the new material web (12) to each other. The pressing elements (14, 15) are designed to connect the material webs (11, 12) during a movement in the conveying direction (18) of the terminating and new material webs (11, 12). The device (10) is designed to generate a weakening line (19, 20) in each of the terminating and new material webs (11, 12) and to separate the material webs (11, 12) at the weakening lines (19, 20), preferably perforation lines, by applying an increased tensile stress in each of the material webs (11, 12).

Control of vehicle thermal management systems

Resumen de: GB2637942A

A method 500 for controlling a thermal management system of an electric vehicle includes obtaining, for each operating mode of a plurality of operating modes of the thermal management system, an energy cost associated with the operating mode 502. The method further includes selecting an operating mode based on the one or more obtained energy costs 504 and providing an output indicating the selected operating mode 506. The plurality of operating modes may be based upon the positions of crossflow valves (328, figure 3) within a powertrain thermal management system of the electric vehicle, the positions of the valves determining flow of coolant through first and second loops (314, 316, figure 5) of the system and thus flow through different vehicle components (e.g. a traction battery, front or rear drive unit, heat exchanger). Ideally the method comprises receiving thermal energy information for each of a plurality of vehicle components and obtaining, for each operating mode, whether the operating mode complies with a thermal energy transfer requirement.

Control of vehicle thermal management systems

Resumen de: GB2637943A

A thermal management system has a plurality of operating modes. In each operating mode the thermal management system is configured to transfer thermal energy among a respective set of components of the electric vehicle via one or more thermal transfer fluids. A method of controlling the thermal management system comprises, for at least one of the operating modes, obtaining a target thermal energy transfer between at least one of the components and the one or more thermal transfer fluids 602. An aggregated thermal energy transfer availability for the respective set of components is obtained that is indicative of a thermal energy that the respective set of components is collectively able to exchange with the one or more thermal transfer fluids in the operating mode 610. Based on the aggregated thermal energy transfer availability it is determined whether the target thermal energy transfers of the at least one component in the respective set of components are achievable in the operating mode 646.

BOX OF BATTERY, BATTERY, POWER CONSUMPTION DEVICE, AND METHOD AND DEVICE FOR PRODUCING BATTERY

Resumen de: EP4601101A2

Embodiments of the present application are provided with a box (11) of a battery (10), a battery (10), a power consumption device, and a method and device for producing a battery. The box of the battery includes: an electrical chamber (11a); a thermal management component (13); and a collection chamber (11b), configured to collect emissions from the battery cell (20) provided with the pressure relief mechanism (213) when the pressure relief mechanism (213) is actuated; wherein the thermal management component (213) is configured to isolate the electrical chamber (11a) from the collection chamber (11b), a pressure relief region is disposed on the thermal management component (13), and the emissions collected by the collection chamber (11b) is discharged through the pressure relief region. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

SODIUM ION LAYERED METAL OXIDE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE MATERIAL, AND SODIUM ION BATTERY

Resumen de: EP4601047A1

The present disclosure belongs to the technical field of Na-lon Batteries. Provided are a Na-ion layered metal oxide material and a preparation method thereof, and a cathode material and a Na-lon Battery. The Na-ion layered metal oxide material has a chemical formula being NaxNiaMnbTi(0.5-b)M(0.5-a)O(2-y)Fy (formula I), wherein 0.9≤x≤1.0, 0.3≤a<0.5, 0.3≤b≤0.4, 0.1≤1-a-b≤0.35, and 0≤y<0.1, and M includes at least one of Zn, Mg, Sn, Sb, Y, or Cu. Through the doping of F element and M element, the structural stability of the material is improved. In addition, according to the preparation method of the present disclosure, generation of impure phases can be reduced, and distribution of M element in a finished product is more uniform, such that a cathode plate and NIB containing the Na-ion layered metal oxide material have a high discharging specific capacity and cycling performance.

SINGLE-CRYSTAL TERNARY POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR

Resumen de: EP4600218A1

A single crystal ternary positive electrode material and a method for preparing the same are disclosed, which belong to materials of lithium-ion battery. The method includes: firstly, mix a first lithium source with a single crystal ternary precursor, which are subjected to a first low-temperature sintering stage to form a first sintered material; secondly, mix a second lithium source with the first sintered material, which are subjected to a second low-temperature sintering stage to form a second sintered material; thirdly, subject the second sintered material to a high-temperature sintering and obtain the single crystal ternary positive electrode material. Wherein the first lithium source is lithium carbonate, the temperature of the first sintering stage, the second sintering stage and the high-temperature sintering stage are respectively 600°C ~ 800°C, 600°C ~ 800°C and 900°C ~ 1000°C. Lithium carbonate is used as the first lithium source, and the sintering process is divided into three stages to make the lithium carbonate react more fully with the precursor, which is beneficial to avoiding the disadvantage of low activity of lithium carbonate and reducing the alkali content of the ternary cathode material.

METHOD FOR DISCHARGING THE ELECTRIC CHARGE OF BATTERIES AND DEVICE THAT IMPLEMENTS SAID METHOD

Resumen de: EP4599939A2

A device (1) configured to implement a method for discharging the electric charge of batteries, cells and/or rechargeable batteries, comprising:- an inactivation chamber (2) of the batteries, cells and/or rechargeable batteries to be discharged introduced through an inlet path (21); the inactivation chamber (2) being delimited by one or more walls (22) and by a bottom (23);- an outlet path (25) of the discharged batteries, cells and/or rechargeable batteries defined in the inactivation chamber (2);- at least one inductive winding (3) configured to be powered by an electric current arranged externally to the walls (22) and wound around a winding axis (A), the winding axis (A) being preferably orthogonal to the bottom (23);the at least one inductive winding (3) being adapted to heat by induction the walls (22) of the inactivation chamber (2);the walls (22) being made of a material adapted to transmit heat so that the walls (22) heated by induction are adapted to heat by radiation the batteries, cells and/or rechargeable batteries arranged inside the inactivation chamber (2). The device comprises:- inerting means configured to introduce one or more inert gases into the inactivation chamber (2) so as to eliminate the oxygen and the humidity present inside the inactivation chamber (2);- a tank (7) of the discharged batteries, cells and/or rechargeable batteries received from the inactivation chamber (2) through the outlet path (25); the tank (7) and the inactivation chamber (2) be

BATTERY ASSEMBLY AND DEVICE

Resumen de: EP4601079A1

The present disclosure provides a battery assembly and a device. By controlling a size parameter of a heat absorption sheet arranged on a side surface of a housing of a cell in a battery assembly, a mass of a heat absorption main material, a size parameter of the housing, and related parameters in a thermal runaway process to meet a specific relation, the heat absorption sheet can be ensured to fully suppress heat of a battery with thermal runaway from diffusing to an adjacent battery, and does not excessively affect space utilization of the battery assembly containing a number of cells.

SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: EP4601102A2

Provided is a separator which includes: a separator base including a porous polymer substrate having a plurality of pores, and a porous coating layer positioned on at least one surface of the porous polymer substrate and containing a plurality of inorganic particles and a binder polymer positioned on the whole or a part of the surface of the inorganic particles to connect the inorganic particles with one another and fix them; and a porous adhesive layer positioned on at least one surface of the separator base and including polyvinylidene-co-hexafluoropropylene containing vinylidene-derived repeating units and hexafluoropropylene-derived repeating units, wherein the ratio of the number of the hexafluoropropylene (HFP)-derived repeating units (HFP substitution ratio) based on the total number of the vinylidene-derived repeating units and the hexafluoropropylene-derived repeating units is 4.5-9%. An electrochemical device including the separator is also provided.

METHOD FOR SEALING SECONDARY BATTERY

Resumen de: EP4600022A1

The present disclosure provides a method for sealing a secondary battery, which seals an electrode lead and a battery case of the secondary battery, the method comprising the steps of: providing a heater on a front surface of a sealer; providing the electrode lead between an upper sealer and a lower sealer contained in the sealer; heating the electrode lead with the heater; sealing the electrode lead and the battery case with the sealer; photographing the sealer around the heater with a camera disposed on a front surface of the heater to obtain shape information; measuring the temperature of the sealer around the heater with a temperature sensor to obtain temperature information; acquiring thermal expansion data according to the temperature of the sealer using the shape information, the temperature information, and the material information about the sealer; and measuring the temperature of the electrode lead with the temperature sensor and then predicting the thermal expansion value of the sealer at the electrode lead covered by the heater using the thermal expansion data.

CYLINDRICAL BATTERY FIXING DEVICE HAVING ENHANCED ATTACHMENT/DETACHMENT FUNCTION

Resumen de: EP4601092A1

Disclosed is a cylindrical battery fixing apparatus including a lower housing formed in the shape of a flat plate, the lower housing having a through-hole configured to allow a cylindrical battery to be vertically inserted therethrough, an upper housing fixed to the top of the lower housing, the upper housing being generally formed in the shape of a column or a triangular prism, the upper housing being provided in a lower end thereof with guide recesses disposed at 120 degree intervals, and three fixing units inserted into the guide recesses of the upper housing, respectively, the fixing units being movable along an upper surface of the lower housing in a direction toward the center of the lower housing, each of the fixing units being provided on a front surface thereof with a fixing jaw configured to be inserted into and fixed to a beading portion of the cylindrical battery, wherein a fixing block is coupled to a rear surface of each of the fixing units, and two or more compression springs are provided between a respective fixing block and the upper housing.

NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE SHEET AND BATTERY

Resumen de: EP4601037A1

Provided are anode material, negative electrode plate and battery. The anode material includes a carbon matrix and a silicon-based active substance; the anode material contains an alkali metal element, an alkaline earth metal element, and an oxygen element, the alkali metal element includes Na and/or K, and the alkaline earth metal element includes Mg and/or Ca; a mass content of the alkali metal element is A ppm, a mass content of the alkaline earth metal element is B ppm, and a mass content of the oxygen element is E%; and the anode material satisfies the following relationship: 1 × 10<-5> ≤ (B/A) × E ≤ 5 × 10<2>. The anode material provided in the present application can enhance the cycling stability of the anode material while increasing the specific capacity of the anode material.

CONTROLLING ACCESS BY AN ELECTRIC VEHICLE TO A CONTROLLED-ACCESS AREA

Resumen de: EP4600070A1

Methods, apparatuses, and computer program products for controlling access by an electric vehicle (EV) to a controlled-access area are provided. For example, a computer-implemented method may include receiving data from an EV related to a fire risk in a battery of the EV and determining, using the data received from the EV, whether to allow the EV to enter a controlled-access area.

BATTERY OF VEHICLE

Resumen de: EP4601094A1

The present disclosure provides a battery of a vehicle, including an interface part, a power part, and an operation part. The interface part includes a first interface surface and a second interface surface. The power part includes a battery body and is connected with the interface part. The operation part is connected with the power part. The interface part includes: a first battery interface adapted to a first peripheral interface, where the first battery interface is mounted on the first interface surface and electrically connected with the battery body; and a second battery interface adapted to a second peripheral interface, where the second battery interface is mounted on the second interface surface and electrically connected with the battery body. The first battery interface is coupled and electrically connected with the first peripheral interface in a battery compartment after the battery is inserted into the battery compartment.

BUSBAR ASSEMBLY AND BATTERY PACK

Resumen de: EP4601106A1

The present disclosure discloses a busbar assembly and a battery pack. The busbar assembly includes: a busbar body provided with a positioning groove and a welding groove, where the welding groove is configured to be welded to a pole terminal of a cell, a spacing is reserved between the positioning groove and the welding groove; a temperature acquisition element adhesively fixed in the positioning groove.

ELECTRODE ASSEMBLY FOR SECONDARY BATTERY AND BATTERY CELL COMPRISING SAME

Resumen de: EP4601109A1

Disclosed are a secondary battery electrode assembly and a battery cell including the same, and more particularly a secondary battery electrode assembly including at least one first electrode including a first electrode current collector and a first electrode tab extending from the first electrode current collector in one direction, at least one second electrode including a second electrode current collector and a second electrode tab extending the second electrode current collector in one direction, a separator interposed between the first electrode and the second electrode, a first electrode lead electrically connected to the first electrode tab, and a second electrode lead electrically connected to the second electrode tab, wherein the first electrode current collector has a first resin layer interposed between a pair of aluminum layers, and a first metal foil is interposed between the first electrode tab and the first electrode lead on at least a part of a region where the first electrode tab and the first electrode lead overlap each other.

NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE SLURRY, AND LITHIUM ION BATTERY

Resumen de: EP4601036A1

The present application relates to an anode material, a preparation method therefor and a lithium-ion battery. The anode material includes a silicon-based active substance and a coating layer located on at least a partial surface of the silicon-based active substance, and the silicon-based active substance includes silicon and a lithium silicate. According to the anode material of the present application, by controlling the type and crystallization degree of the lithium silicate in the material, the storage stability of a negative electrode paste can be improved, the cycle life of the anode material is prolonged, the bonding ability of the anode material and a current collector is increased, the high-temperature storage performance of a cell is improved, and thus the cycle performance of the lithium-ion battery is improved.

POWER SUPPLY DEVICE, METHOD FOR FORMING FILTER DEVICE, AND BATTERY SYSTEM INCLUDING POWER SUPPLY DEVICE

Resumen de: EP4601174A1

A power supply device includes: a primary-side printed circuit board (PCB); a secondary-side PCB insulated from the primary-side PCB; a filter device including a plurality of metal plates disposed between the primary-side PCB and the secondary-side PCB; and a transformer disposed on the filter device, and including a primary-side winding connected to the primary-side PCB and a secondary-side winding connected to the secondary-side PCB.

HEAT SINK ASSEMBLY

Resumen de: EP4601083A1

A heat sink assembly including a heat sink having a plurality of ribs extending in a longitudinal direction of the heat sink, open first and second end faces at respective first and second longitudinal ends and a flow path for a coolant formed by the ribs. The flow path includes an inlet flow path, at least one outlet flow path and a return flow path. A plurality of first end plugs close the first end face. A second end plug closes the second end face. The second end plug includes a flow guide on the return flow path. The flow path is configured so that a coolant introduced from the first longitudinal end flows along the inlet flow path, along the return flow path by the flow guide into the at least one outlet flow path and then flows to the first longitudinal end.

METHOD FOR PREPARING LITHIUM CARBONATE, LITHIUM CARBONATE PREPARED USING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING POSITIVE ELECTRODE ACTIVE MATERIAL PREPARED USING THE SAME

Resumen de: EP4600224A1

Provided are a method for preparing a lithium carbonate, a lithium carbonate prepared using the same, and a rechargeable lithium battery including a positive electrode active material prepared using the same, and more particularly, to a method for preparing a lithium carbonate, including mixing a lithium nickel-based composite oxide and a coating solution to form a first mixture where the coating solution includes a coating raw material, a precipitant, and a solvent, filtering the first mixture to recover a washing solution containing at least 1000 ppm of lithium, filtering the washing solution, mixing and heating the filtered washing solution and sodium carbonate to form a second mixture, and filtering, washing, and drying the second mixture, wherein the heating is performed at a temperature of about 50 °C to about 80 °C.

NEGATIVE ELECTRODE MATERIAL AND BATTERY

Nº publicación: EP4601034A1 13/08/2025

Solicitante:

BTR NEW MAT GROUP CO LTD [CN]
HUIZHOU DINGYUAN NEW ENERGY TECH CO LTD [CN]
BTR NEW MATERIAL GROUP CO., LTD,
Huizhou Dingyuan New Energy Technology Co., Ltd

Resumen de: EP4601034A1

Provided are anode material and battery. The anode material includes a primary particle. The primary particle includes silicon grains. An average particle size of the silicon grains of the anode material measured at 25 °C is M0 nm. After the anode material is heated to 1000 °C under nitrogen protection and then subjected to temperature holding for 1 h, the average particle size of the silicon grains of the anode material measured at a temperature naturally cooled to 25 °C is M1 nm. A crystallization instability degree of the anode material is F, where F=(M1-M0)/M0, M1> M0, and 0.01≤F≤500. According to the anode material provided in the present disclosure, the problem of stress concentration caused by the primary particle including the silicon grains in a lithium deintercalation process may be attenuated, such that the structure stability of the anode material is improved, and an expansion rate of the material is reduced, thereby improving the electrochemical performance and cycling performance of the anode material.