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1603
results.
Updated on
10/11/2025 [07:13:00]
Results 800 to 825 of 1603
Absstract of: WO2025222918A1
A battery thermal energy early warning control method, a system (1) and a new energy vehicle. The control method comprises: 1) setting a feedback current matrix of a battery module (2); 2) controlling charging and discharging of the battery module (2) on the basis of the feedback current matrix, and performing temperature control on a battery pack on the basis of the ambient temperature; 3) during the process of step 2), training and updating an SOC curve local model, fitting an SOC curve, when the SOC curve converges, determining that a battery is normal, and when the SOC curve diverges, determining that the battery is abnormal and sending out a first early warning signal; meanwhile, monitoring the temperature rise of the battery module (2), when the temperature rise speed is less than a third preset value, determining that the battery is normal, and when the temperature rise speed is greater than or equal to the third preset value, determining that the battery is abnormal and sending out a second early warning signal; when the first early warning signal and the second early warning signal are both valid, stopping charging and discharging, and sending out a fault early warning; and 4) during the process of step 2), if a working state exceeds a safety protection range, sending out a fault early warning, and initiating fire extinguishing and explosion prevention measures.
Absstract of: WO2025222617A1
A cold start system and method and an electric vehicle. The cold start system (100) comprises a main energy supply module (110), a conversion module (120), a pulse module (130), and a start-up energy supply module (140). The main energy supply module (110) is configured to provide a first electric signal; the conversion module (120) is electrically connected to the main energy supply module (110) and is configured to convert the first electric signal into a second electric signal, a voltage value of the second electric signal being less than a voltage value of the first electric signal; the pulse module (130) is electrically connected to the conversion module (120) and is configured to convert the second electric signal into a pulse signal; and the start-up energy supply module (140) is electrically connected to the pulse module (130) and is configured to receive the pulse signal to work under the action of the pulse signal. The cold start system (100) can greatly improve the cold starting capability of the start-up energy supply module.
Absstract of: WO2025222813A1
A polyanion sodium-containing positive electrode material, a preparation method therefor, a positive electrode sheet, a battery and an electrical apparatus. The polyanion sodium-containing positive electrode material is NaxRyPmOn, where 3.5≤x≤4.5, 2.5≤y≤3.5, 3.7
Absstract of: WO2025222610A1
The present application relates to a battery box body and a battery system. A first accommodating chamber is defined between a support plate and a side plate assembly in the battery box body. The support plate is provided with a plurality of first through holes, the first through holes and explosion-proof valves of battery cells being arranged on an one-to-one basis. A first surface of the support plate is provided with a first thermal insulation layer, the first thermal insulation layer sealing each first through hole. A bottom plate is arranged to be spaced apart from the support plate, the bottom plate, the support plate and the side plate assembly defining a pressure relief chamber.
Absstract of: WO2025222767A1
Provided in the embodiments of the present disclosure are an insulating film, a battery cell, a battery, and an electric device. The battery cell comprises an electrode assembly, a casing and an insulating film. The electrode assembly comprises a plurality of surfaces, the plurality of surfaces comprising a first surface, which is the surface with the largest area among the plurality of surfaces. The casing forms an accommodating space for accommodating the electrode assembly. The insulating film wraps around the periphery of the electrode assembly and is located between the electrode assembly and the casing, and the insulating film has a first thickness area and a second thickness area, wherein the thickness of the first thickness area is greater than that of the second thickness area, and the first thickness area is located in the area where the first surface of the electrode assembly is located.
Absstract of: WO2025225910A1
Disclosed are a polymer electrolyte and a lithium metal battery comprising same, the polymer electrolyte comprising a crosslinked polymer including: a repeating unit (A) derived from a first crosslinkable monomer including three or more double bond functional groups including an ester bond; and a repeating unit (B) derived from a second crosslinkable monomer including two or more double bond functional groups including an ester bond.
Absstract of: WO2025225886A1
The present disclosure relates to a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including same, wherein the positive electrode comprises: a first positive electrode active material comprising core particles including a lithium cobalt-based oxide doped with Al, Mg, or a combination thereof, and a coating layer disposed on the surface of the core particles and including Zr, Ti, or a combination thereof; a second positive electrode active material comprising core particles including a lithium cobalt-based oxide doped with Al, Mg, or a combination thereof, and a coating layer disposed on the surface of the core particles and including Zr, Ti, or a combination thereof, the second positive electrode active material having a smaller average particle diameter (D50) than the first positive electrode active material; a first fluorine-based binder free of polar functional groups; a second fluorine-based binder containing polar functional groups; and a conductive material, with the weight ratio of the first fluorine-based binder to the second fluorine-based binder being 90:10 to 99:1.
Absstract of: WO2025225804A1
The present invention relates to a battery module with improved manufacturing efficiency, and a battery pack and a vehicle comprising the batter module, the battery module comprising: a plurality of battery cells; and a plurality of module frames, each accommodating the plurality of battery cells, and provided as standardized frames that can be coupled to each other.
Absstract of: WO2025225798A1
The present invention relates to a negative electrode for an all solid-state battery and an all solid-state battery including same, wherein the negative electrode for an all solid-state battery comprises a negative electrode coating layer that comprises a mixture of metal particles and a carbon-based material and that has a first peak appearing at a binding energy of 160eV-162eV and a second peak appearing at a binding energy of 163eV-165eV, in the S2p spectrum, when measured using X-ray photoelectron spectroscopy (XPS), the ratio of the second peak to the first peak being 3-12.
Absstract of: WO2025225901A1
A battery module according to one embodiment of the present invention comprises: a battery cell stack formed from plurality of stacked battery cells; a module case which includes an upper plate disposed above the battery cell stack, and which is for accommodating the battery cell stack; and an aerogel layer disposed between the upper plate and the battery cell stack. The battery module according to one embodiment of the present invention can delay thermal propagation, and can prevent a back flame going from the inside of the battery module to a cell.
Absstract of: WO2025223002A1
The present application discloses a charger. The charger comprises: a main body provided with a first contact-type charging structure; and a pin module comprising a fitting body and pins, the pins passing through the fitting body. The fitting body is provided with a second contact-type charging structure, and the first contact-type charging structure is fitted with the second contact-type charging structure in different directions to adjust fitting forms of the pin module and the main body. When the pin module and the main body are in a first fitting form, the pins are arranged in parallel to a first direction; when the pin module and the main body are in a second fitting form, the pins are arranged perpendicular to the first direction; and the first direction includes the length direction, width direction or height direction of the main body. According to the present application, the main body is provided with the first contact-type charging structure, and the pin module is provided with the second contact-type charging structure; and the first contact-type charging structure is fitted with the second contact-type charging structure in the different directions, so that the pin module changes its direction by at least 90 degrees, thereby adapting to sockets in different application scenarios.
Absstract of: WO2025222862A1
A battery device (100) and an electric device (1000). The battery device (100) comprises: a case (10); a battery cell assembly (20), accommodated in the case (10); and a heat exchange assembly (30), accommodated in the case (10), wherein the heat exchange assembly (30) comprises a heat exchange body (31) comprising a plurality of heat exchange flow channels (301), and a flow collecting structure (32), wherein the flow collecting structure (32) comprises a blocking member (321), a flow collecting member (322) and an adapter member (323), the blocking member (321) implements blocking in at least one heat exchange flow channel (301), the adapter member (323) is formed on the heat exchange body (31), notches (323a) are formed in the peripheral wall of the adapter member (323), the flow collecting member (322) is provided with a flow collecting cavity (3221), the flow collecting member (322) is in sealing fit with and connected to the heat exchange body (31) by means of the adapter member (323), and the flow collecting member (322) is provided with a communicating opening (322a) communicated with the flow collecting cavity (3221).
Absstract of: WO2025223024A1
The present application discloses a non-aqueous electrolyte, a lithium-ion battery, and an electronic device. The non-aqueous electrolyte comprises a non-aqueous solvent and a lithium salt. The non-aqueous electrolyte contains a specific amount of lithium difluorophosphate, propyl propionate, 1,2,3-tris(2-cyanoethoxy)propane, and boron-containing lithium salt. The total content of the lithium difluorophosphate and 1,2,3-tris(2-cyanoethoxy)propane in the non-aqueous electrolyte is set to a specific range, and the total content of the propyl propionate and boron-containing lithium salt is set to a specific range. The use of the non-aqueous electrolyte can not only improve the initial efficiency of lithium-ion batteries, but also inhibit the increase in resistance, and significantly improve the low-temperature output performance and high-temperature storage performance of lithium-ion batteries.
Absstract of: US2025338422A1
A power distribution apparatus, a battery, and a power-consuming device are provided. The power distribution apparatus includes a first electrical member and a second electrical member. The first electrical member includes a first connection terminal configured to electrically connect to another electrical member. A first gap is formed between the first and second electrical members. The first connection terminal is positioned outside the first gap, such that the space required for connection operations is moved out of the gap. This allows the distance between the first and second electrical members to be reduced, enhancing the structural compactness of the power distribution apparatus. As a result, the overall size of the apparatus can be minimized. This compact configuration is beneficial for reducing the outline dimensions of the power distribution apparatus, improving the layout flexibility and structural integration of a power-consuming device, enhancing performance, and lowering manufacturing costs.
Absstract of: US2025338363A1
An apparatus for heating a non-coated portion of foil includes a temperature detection unit spaced apart from one side of a non-coated portion of foil of an electrode sheet, configured to detect a temperature of the non-coated portion of foil in a non-contact manner and configured to output a temperature detection signal; a controller configured to control heating of the non-coated portion of foil based on a temperature detection signal from the temperature detection unit; and a heating means spaced apart from the other side of the non-coated portion of foil of the electrode sheet, and configured to heat the non-coated portion of foil under control of the controller.
Absstract of: US2025337225A1
A power distribution apparatus, a battery, and a power-consuming device are provided. The power distribution apparatus includes an electrical component and an insulating heat conduction member. One side of the insulating heat conduction member is connected to at least a portion of the electrical component, and the other side is configured to be connected to a heat exchange member. The insulating heat conduction member is configured to transfer heat from the electrical component to the heat exchange member. Through this configuration, heat can be effectively conducted away from the electrical component, enhancing heat dissipation performance and efficiency. This reduces the risk of thermal failure, helps stabilize operating conditions, and extends the service life of both the electrical component and the power distribution apparatus.
Absstract of: US2025337255A1
A battery management apparatus for perform cell balancing of a battery and a cell balancing method thereof are provided. The battery management apparatus includes a detection circuit that detects pieces of state information of battery cells, a cell balancing circuit that controls whether to discharge each of the battery cells, and a control unit connected to the detection circuit and the cell balancing circuit. The control unit determines whether there is a need to perform cell balancing based on the pieces of state information of the battery cells; groups the battery cells into at least two groups, when it is determined that there is the need to perform the cell balancing; determines whether to apply a group control strategy based on the pieces of state information of the battery cells; and simultaneously controls balancing switches in the cell balancing circuit to perform the cell balancing.
Absstract of: WO2025226431A1
A process that includes (A) contacting a mass with a liquid ammonium system comprising an ammonia source, to form a combination, wherein the mass was formed from at least lithium-ion batteries and comprises one or more metal-containing compounds, wherein the metal is selected from lithium, cobalt, nickel, iron, and/or aluminum; (B) separating an alkaline leachate from the combination; (C) infusing one or more oxidizing agents into the alkaline leachate; (D) adjusting the pH of the alkaline leachate to enhance formation of a precipitate comprising one or more metal-containing compounds, wherein the metal is selected from lithium, cobalt, nickel, iron, and/or aluminum; and (E) infusing one or more of carbon dioxide, sodium carbonate, sodium bicarbonate, lithium carbonate, and lithium bicarbonate into the alkaline leachate to enhance formation of an additional precipitate comprising one or more metal-containing compounds, wherein the metal is selected from cobalt, nickel, iron, and/or aluminum.
Absstract of: WO2025225785A1
The present invention relates to an all-solid-state battery and, more particularly, to a all-solid-state battery comprising a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, wherein the negative electrode layer comprises: a negative electrode current collector; a negative electrode coating layer disposed on the negative electrode current collector and including a first metal and a first carbon; and a lithium-deposited buffer layer disposed between the negative electrode current collector and the negative electrode coating layer and including a second metal and a second carbon, wherein the Gibbs free energy of the chemical reaction between the first metal and molten lithium at 250°C is △G1, and the Gibbs free energy of the chemical reaction between the second metal and molten lithium at 250°C is △G2, wherein △G2 is greater than △G1.
Absstract of: WO2025225783A1
The present invention relates to an all-solid-state battery, more specifically to an all-solid-state battery comprising: a negative electrode layer; a first solid electrolyte layer on the negative electrode layer; a second solid electrolyte layer on the first solid electrolyte layer; and a positive electrode layer on the second solid electrolyte layer. Each of the first and second solid electrolyte layers contains an argyrodite-based compound and a nano-compound, the nano-compound comprising a composite of lithium-sulfur and lithium salt, and the nano-compound content in the first solid electrolyte layer being greater than the nano-compound content in the second solid electrolyte layer.
Absstract of: WO2025225782A1
The present invention relates to a negative electrode for a lithium metal battery and a lithium metal battery comprising same, the negative electrode, more specifically, comprising: a negative electrode current collector comprising titanium or an alloy thereof; an oxide layer on the negative electrode current collector, the oxide layer comprising crystalline titanium oxide; and a polymer coating layer on the oxide layer. The polymer coating layer comprises a polymer having a trifluoromethanesulfonylimide (TFSI) functional group.
Absstract of: WO2025222892A1
A battery pack temperature rise control method, apparatus and device, and a readable storage medium, relating to the field of batteries. The method comprises: acquiring preset connector acting force limit value ranges corresponding to a target battery pack in different charging modes, each preset connector acting force limit value range being used for representing a correspondence relationship between a contact resistance limit value range of a connector interface and a temperature limit value range of a non-battery cell part in the battery pack in a corresponding charging mode; and, on the basis of the preset connector acting force limit value range in each charging mode, performing parameter control on a target connector interface of the target battery pack, such that a maximum contact resistance value of the target connector interface in each different charging mode is within the contact resistance limit value range corresponding to the preset connector acting force limit value range, thus achieving temperature rise control over the non-battery cell part in the battery pack. The present application can control temperature rise results of non-battery cell parts in battery packs to be within normal temperature limit value ranges in advance, so as to avoid abnormal temperature rise, thereby reducing the aging speed and safety risks of batteries.
Absstract of: WO2025222996A1
A battery cover plate assembly, a combined battery, and a power battery pack. The battery cover plate assembly is used for being arranged between end faces of two housings. A battery cell is arranged in each housing, and the housing is provided with a positive tab and a negative tab. The battery cover plate assembly comprises a cover plate main body, a conductive post, and an insulating injection-molded body. The cover plate main body is used for being fixedly and sealingly connected to the two housings and is provided with a through hole allowing for an injection molding material to flow through. The conductive post passes through the through hole. The insulating injection-molded body is mutually embedded with the cover plate main body and the conductive post by means of the through hole so that the cover plate main body and the conductive post are insulated from each other. The insulating injection-molded body is capable of being inserted into the end face of each housing. Two ends of the conductive post protrude from the insulating injection-molded body and are in conductive contact with the positive tab of one of the two housings and the negative tab of the other of the two housings, respectively.
Absstract of: WO2025222968A1
The present application relates to a positive electrode active material, a positive electrode sheet, a cylindrical battery cell, a battery, and an electric device. The positive electrode active material comprises a core portion and a coating layer; the core portion comprises a lithium-containing transition metal oxide; the coating layer covers at least a portion of the surface of the core portion; and the coating layer comprises a polymer, including one or more of a fluoropolymer and an oxygen-containing polymer. In the embodiments of the present application, when applied to a battery, the positive electrode active material can reduce the swelling degree of the battery, and can improve the cycle performance of the battery.
Nº publicación: WO2025226125A1 30/10/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
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Absstract of: WO2025226125A1
A battery control device according to an embodiment of the present invention is located in a battery system including a plurality of batteries, and may include: at least one processor; and a memory that stores at least one command executed through the at least one processor. The at least one command may comprise: a command for monitoring the voltage of each of the batteries in a process in which the batteries are connected in parallel to a DC link and charged; a command for sequentially dropping, from the DC link, batteries that have reached a predefined target voltage; and a command for stopping a charging process in a state in which the N batteries are connected to the DC link when only N preset batteries remain connected to the DC link.
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