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1455
results.
Updated on
14/08/2025 [07:17:00]
Results 1050 to 1075 of 1455
Absstract of: US2025246772A1
Embodiments provide a battery cell, a battery, an electric apparatus, and a manufacturing method and system of battery cell. In some embodiments, the battery cell includes a housing, an electrode assembly, and an end cover assembly. The housing provides an opening. The electrode assembly is disposed in the housing. The electrode assembly includes a body portion, a tab, and an isolation portion. The tab extends from an end of the body portion to the opening. The isolation portion is disposed on a periphery of the tab. The end cover assembly is configured to cover the opening. The end cover assembly includes an end cover and a first insulator. The end cover is configured to cover the opening and is connected to the housing. The first insulator is disposed on a side of the end cover proximate to an inside of the housing. The first insulator has a concave portion.
Absstract of: WO2025158692A1
The present invention relates to a battery device 31 and a saddle-type electric vehicle 1. The battery device 31 comprises a battery 32, an inclination sensor 38, and a control unit 41. The battery 32 supplies power to an electric motor 21. The electric motor 21 propels the saddle-type electric vehicle 1. The inclination sensor 38 detects an inclination angle θA of the battery 32. On the basis of the detection result of the inclination sensor 38, the control unit 41 acquires a cumulative time period TA in which the battery 32 is in an inclined state. The control unit 41 executes a specified operation on the battery 32 when the cumulative time period TA exceeds a limit time period TB.
Absstract of: WO2025159572A1
Disclosed in the present specification are an electrode assembly and a secondary battery. The electrode assembly exhibits low resistance and excellent electrical characteristics in a normal state, and rapidly transits to an insulator in an abnormal state, thereby securing stability. Disclosed in the present specification is a secondary battery including the electrode assembly.
Absstract of: WO2025156597A1
An electrode assembly, a battery cell, a battery, and an electrical device, the electrode assembly comprising: at least one positive electrode plate; at least one negative electrode plate, which is alternatingly stacked with the positive electrode plate; and a separator, which is sandwiched between every two adjacent electrode plates, i.e., a positive electrode plate and a negative electrode plate. A first accommodating cavity is formed between a positive electrode plate and the separator adjacent to the positive electrode plate, and a second accommodating cavity is formed between a negative electrode plate and the separator adjacent to the negative electrode plate. The first accommodating cavity and the second accommodating cavity are disposed independent of one another and do not communicate with each other. The first accommodating cavity and the second accommodating cavity of the battery assembly are disposed independent of one another. Hence, filling a first electrolyte into the first accommodating cavity and filling a second electrolyte into the second accommodating cavity enable the first electrolyte and the second electrolyte to be individually arranged in separate regions without any influence on each other, thus effectively reducing the influence of the first electrolyte on the negative electrode and the influence of the second electrolyte on the positive electrode, and improving battery performance.
Absstract of: WO2025156612A1
The present application relates to the technical field of energy, and provides a battery pack, an energy storage apparatus, and an energy storage system, which are used for implementing the function of liquid leakage detection for a battery pack. The battery pack comprises a box body, a plurality of battery cells, and a liquid leakage detection apparatus. The liquid leakage detection apparatus comprises a first wire, a second wire, a separator, a detection port, and an alarm device. The detection port comprises a first conductive contact and a second conductive contact. The first wire is electrically connected to the first conductive contact, and the second wire is electrically connected to the second conductive contact. The portion of the first wire that extends into the box body comprises a first wire core portion that is exposed, and the portion of the second wire that extends into the box body comprises a second wire core portion that is exposed. The separator separates the first wire core portion from the second wire core portion, and the separator is configured to dissolve when coming into contact with an electrolyte, thus electrically connecting the first wire core portion and the second wire core portion. The alarm device is electrically connected to the first conductive contact and the second conductive contact, and the alarm device sends an alarm signal when the first conductive contact and the second conductive contact are shorted.
Absstract of: WO2025156605A1
Embodiments of the present application provide a battery and an electric device. The battery comprises a plurality of battery cells, a plurality of thermal management components, first connecting tubes, and first thermal insulation members, the plurality of thermal management components are arranged at intervals in a first direction, each thermal management component has a first end and a second end in a second direction, at least one battery cell is arranged between two adjacent thermal management components, and the first direction is perpendicular to the second direction. Each first connecting tube is located at one side of the corresponding battery cell in the second direction, and connected to first ends of two adjacent thermal management components. In the second direction, at least a part of each first thermal insulation member is located between the first connecting tube and the corresponding battery cell. Thus, when a battery cell among the battery cells expands due to thermal runaway, in the second direction, the first thermal insulation member can abut against the battery cell prior to the first connecting tube, thereby reducing heat transferred by the battery cell undergoing thermal runaway to the first connecting tube.
Absstract of: US2025246710A1
A heat exchanging assembly, a battery module, a battery, and an electrical device are provided. The heat exchanging assembly includes a heat exchanging plate. The heat exchanging plate has a heat exchanging flow channel. The heat exchanging plate has a discharge structure. The discharge structure is configured to correspond to a pressure relief mechanism of a battery cell. The heat exchanging flow channel is arranged on at least one side of the discharge structure in a width direction of the heat exchanging plate. The heat exchanging flow channel is configured to exchange heat with the battery cell.
Absstract of: US2025246712A1
A battery module is provided. The battery module includes a liquid tight battery enclosure and at least one cell assembly. The battery enclosure includes a front plate, a back plate, a battery housing, a fluid inlet, a fluid outlet, and at least two enclosure interfaces. The fluid inlet is disposed on the front plate for a fluid to flow into the battery enclosure. The fluid outlet is disposed on the front plate for the fluid to flow out of the battery enclosure. The at least two enclosure interfaces are disposed on the front plate. The at least one cell assembly has battery cells, at least one cell holder, at least two cell-connectors, and at least two assembly electrodes. Each of the at least two assembly electrodes is respectively coupled to one of the at least two enclosure interfaces and electrically exposed to an exterior of the front plate.
Absstract of: US2025246703A1
A process for low temperature hydrothermal relithiation of spent lithium-ion battery cathode materials adds a reducing agent to an aqueous Li solution at 80-100° C. followed by a short anneal to achieve complete recovery of composition, crystal structure, and electrochemical performance for heavily degraded cathode materials.
Absstract of: US2025246713A1
A battery module is provided. The battery module includes a liquid tight battery enclosure and at least one cell assembly. The battery enclosure includes a front plate, a back plate, a battery housing, a fluid inlet, a fluid outlet, and at least two enclosure interfaces. The fluid inlet is disposed on the front plate for a fluid to flow into the battery enclosure. The fluid outlet is disposed on the front plate for the fluid to flow out of the battery enclosure. The at least two enclosure interfaces are disposed on the front plate. The at least one cell assembly has battery cells, at least one cell holder, at least two cell-connectors, and at least two assembly electrodes. Each of the at least two assembly electrodes is respectively coupled to one of the at least two enclosure interfaces and electrically exposed to an exterior of the front plate.
Absstract of: US2025246692A1
A lithium secondary battery including a gel polymer electrolyte. The gel polymer electrolyte includes a gel polymer and a liquid electrolyte, wherein the gel polymer is i) a crosslinked product of a multifunctional acryl-based monomer having three or more polymerizable functional groups, or ii) a crosslinked product of a first polymerizable monomer and a second polymerizable monomer, wherein the first polymerizable monomer is a multifunctional acryl-based monomer having three or more polymerizable functional groups, and the second polymerizable monomer is at least one selected from among a urethane acryl-based monomer having two or more polymerizable functional groups and a polymerizable monomer including a perfluoropolyether (PFPE) unit and having two or more polymerizable functional groups, and the liquid electrolyte includes a lithium salt, an organic solvent, and acetonitrile.
Absstract of: US2024194859A1
A battery electrode composition is provided comprising composite particles, with each composite particle comprising active material and a scaffolding matrix. The active material is provided to store and release ions during battery operation. For certain active materials of interest, the storing and releasing of the ions causes a substantial change in volume of the active material. The scaffolding matrix is provided as a porous, electrically-conductive scaffolding matrix within which the active material is disposed. In this way, the scaffolding matrix structurally supports the active material, electrically interconnects the active material, and accommodates the changes in volume of the active material.
Absstract of: US2024392893A1
A vent assembly has a housing defining a cavity, a first end, a second end, a vent opening, a valve opening, and a coupling structure towards the second end. The housing defines a valve opening and a vent opening. A vent is coupled to the housing across the vent opening, and a one-way relief valve is scalably disposed on the housing across a valve opening.
Absstract of: WO2025159259A1
Disclosed are a positive electrode and an all-solid-state secondary battery comprising same, the positive electrode comprising a positive electrode current collector, a positive electrode active material layer, and an interlayer that is between the positive electrode current collector and the positive electrode active material layer, wherein: the interlayer comprises an oxide-based positive electrode active material and a first sulfide-based solid electrolyte; the positive electrode active material layer comprises a sulfide-based composite positive electrode active material and a second sulfide-based solid electrolyte; the composite positive electrode active material comprises Li2S and a composite of a first ionic compound and a first carbon-based material; and the oxide-based positive electrode active material has an olivine structure or a spinel structure.
Absstract of: WO2025159169A1
A sulfide solid electrolyte according to one aspect of the present invention has diffraction peaks in an X-ray diffraction pattern using Cu Kα rays at diffraction angles 2θ in the ranges of 20.15° ± 0.50°, 20.37° ± 0.50°, and 29.55° ± 0.50°, and contains carbon.
Absstract of: WO2025159232A1
This secondary battery includes an electrode assembly, a can, a cap plate, and a heat dissipation unit. The electrode assembly includes a first electrode, a separator, and a second electrode. The can accommodates the electrode assembly in the inner space thereof. The cap plate is coupled to an opening-side end of the can to seal the can. The cap plate includes a notch groove and at least one opening spaced apart from the notch groove. The heat dissipation unit is filled in the opening to seal the opening, and discharges internal heat and gas during melting.
Absstract of: WO2025159296A1
A battery temperature estimation device according to one embodiment disclosed in the present document may comprise: an impedance measurement unit for measuring impedance for each frequency of a battery; a memory for storing a temperature-frequency table according to an imaginary part of the impedance; and a controller for estimating the temperature of the battery through the temperature-frequency table on the basis of the imaginary part of the impedance for each frequency.
Absstract of: WO2025159257A1
This all-solid secondary battery comprises a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive and negative electrode layers. The positive electrode layer comprises a positive electrode current collector and a positive electrode active material layer on one surface thereof, and the positive electrode active material layer comprises positive electrode active material and a sulfide-based solid electrolyte. The negative electrode layer comprises a negative electrode current collector, a first negative electrode active material layer between the negative electrode current collector and solid electrolyte layer, and a second negative electrode active material layer between the first negative electrode active material layer and negative electrode current collector. The first negative active material layer comprises a first negative active material that can produce an alloy or compound with lithium and fibrous carbon-based material, and the first negative active material comprises metal, metal oxide, alloy phase, or a combination thereof. The second negative active material layer comprises second negative active material.
Absstract of: WO2025156593A1
The present disclosure relates to the technical field of batteries, and provides a system and method for repair-welding and return of a battery cell top cover, and a battery production line. The system for repair-welding and return of a battery cell top cover comprises an outfeed conveying line, a return conveying line, and a sorting module. An input end of the outfeed conveying line is connected to a welding device, and an output end extends toward an outfeed position. The return conveying line is arranged on a side of the outfeed conveying line, and an output end of the return conveying line is connected to the welding device. The outfeed conveying line and the return conveying line have opposite conveying directions, and are arranged side by side. The sorting module comprises a first frame and a material pick-up part. The first frame, the outfeed conveying line, and the return conveying line are fixed relative to one another. The material pick-up part is movably provided on the first frame and can move relative to the first frame to positions corresponding to the outfeed conveying line and the return conveying line, so as to convey a battery cell from the outfeed conveying line to the return conveying line. The system for repair-welding and return of a battery cell top cover can improve production efficiency. In addition, the system for repair-welding and return of a battery cell top cover is used for repair-welding of a battery cell top cover.
Absstract of: WO2025156585A1
A negative electrode plate, a secondary battery, and an electrical device. The negative electrode plate comprises a current collector and a negative electrode film layer. The negative electrode film layer comprises a first negative electrode film layer and a second negative electrode film layer. The first negative electrode film layer is located on at least one side surface of the current collector, and the second negative electrode film layer is located on the surface of the first negative electrode film layer away from the current collector. The first negative electrode film layer comprises first negative electrode active particles, and the first negative electrode active particles are graphitized carbon. The second negative electrode film layer comprises second negative electrode active particles, and the second negative electrode active particles have a core-shell structure. The core of the core-shell structure is graphitized carbon, and the shell of the core-shell structure is aluminum oxide. Under the same conditions, the compaction density of the first negative electrode active particles is greater than the compaction density of the second negative electrode active particles. The described negative electrode plate can be used for balancing properties of the battery such as the direct-current impedance, rate capability, and energy density.
Absstract of: WO2025156602A1
A cutting apparatus for composite electrode sheets and a battery production line, belonging to the technical field of processing apparatuses. The cutting apparatus for composite electrode sheets comprises: a rack; a compounding mechanism, which is mounted on the rack and is configured to cooperate with an adsorption mechanism to compound a separator and an electrode sheet to obtain a composite electrode sheet; the adsorption mechanism, which is mounted on the rack and is configured to adsorb the composite electrode sheet; and a cutting mechanism, which is mounted on the rack and is configured to cooperate with the adsorption mechanism to cut off the composite electrode sheet.
Absstract of: US2025246698A1
A battery pack includes a box, a plurality of battery modules, a cooling passage, an air inlet assembly, an air outlet assembly and a cooling assembly. The plurality of battery modules is arranged at intervals in the box. The air inlet assembly and the air outlet assembly are arranged on the box corresponding to a head and a tail end of the cooling passage, so that outside air flows into the box from an inlet of the air inlet assembly and flows out of the box from an outlet of the air outlet assembly. The cooling passage is formed between the plurality of battery modules arranged at intervals and the box and arranged on at least a partial path where air flows between the inlet of the inlet air assembly and the box, and the air flowing in through the air inlet is in contact with the cooling assembly.
Absstract of: US2025246623A1
The present application provides a positive electrode material comprising a substrate particle of formula (I):Li1+aNixCoyMnzMbWcO2 (I)wherein the M is selected from one or more of Mo, Zr, Al, Ti, Sb, Nb, Te, Mg, Ca, Zn and Sr, 0.6
Absstract of: US2025246622A1
A positive active material has a chemical formula of Li1+aNixCoyMnzM1bM2cO2, where, 0.05
Nº publicación: US2025246666A1 31/07/2025
Applicant:
SEMICONDUCTOR ENERGY LABORATORY CO LTD [JP]
Semiconductor Energy Laboratory Co., Ltd
Absstract of: US2025246666A1
To improve the flexibility of a power storage device, or provide a high-capacity power storage device. The power storage device includes a positive electrode, a negative electrode, an exterior body, and an electrolyte. The outer periphery of each of the positive electrode active material layer and the negative electrode active material layer is a closed curve. The exterior body includes a film and a thermocompression-bonded region. The inner periphery of the thermocompression-bonded region is a closed curve. The electrolyte, the positive electrode active material layer, and the negative electrode active material layer are in a region surrounded by the thermocompression-bonded region.
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