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1488
results.
Updated on
17/07/2025 [07:21:00]
Results 650 to 675 of 1488
Absstract of: WO2025140042A1
A battery cell (11), a battery (1), a casing assembly, and an electric device. The battery cell (11) comprises a battery cell body (111), the battery cell body (111) has a first side wall (1111) in a thickness direction, and n through holes (1112) are formed in the first side wall (1111); the area of the first side wall (1111) is S0, the cross-sectional area of each through hole (1112) is S, and it is satisfied: n*S≤(1-p)*S0, wherein 80%≤p≤99.8%, and n is a positive integer greater than or equal to 1.
Absstract of: WO2025140007A1
The present application relates to a charging method and apparatus, and a mobile terminal. The method comprises: when a battery meets a preset trigger condition, acquiring battery aging information, wherein the preset trigger condition comprises a trigger condition for switching from a constant-current charging mode to a constant-voltage charging mode; when it is determined that the battery aging information meets a charging acceleration condition, stopping charging within a preset duration; and acquiring a voltage drop of the battery before and after charging is stopped, and charging the battery on the basis of the voltage drop. By using the method, the attenuation of the charging speed of the battery after aging can be less, so that the charging speed of the battery is increased.
Absstract of: WO2025140038A1
A negative electrode sheet, a battery, and an electrical device. The negative electrode sheet comprises a current collector and a negative active material layer arranged on at least one surface of the current collector; the negative active material layer comprises an active material and conductive carbon black; the active material comprises a carbon-based material; the conductive carbon black satisfies equation (I).
Absstract of: WO2025140170A1
Disclosed in the present utility model is a battery pack heating integrated design structure coping with a low-temperature use environment, comprising a battery pack cold plate. The surface of the battery pack cold plate facing battery cells is provided with accommodating cavities, a heating piece is arranged in each accommodating cavity, and heat preservation cotton is arranged between each heating piece and the inner surface of the corresponding accommodating cavity; and the surface of the battery pack cold plate facing the battery cells is also provided with a heat-conducting layer. According to the present utility model, the heating piece design is integrated on the basis of the liquid heating and direct heating design, the slotting design is carried out on the basis of conventional battery pack cold plates, a heating piece mounting space is reserved, and the heating piece is built-in, thereby increasing the heating speed, improving the heating efficiency, saving the heating time, and mitigating the problem of occupying additional design space and weight in conventional heating piece mounting schemes; in addition, by adopting a built-in heating piece scheme, the heat efficiency is higher, heat loss is avoided, and the heating reliability is improved; the present utility model achieve sthe use of new energy electric vehicles in a low-temperature environment, and the use environment area of the new energy electric vehicles is widened.
Absstract of: WO2025140139A1
Provided in the embodiments of the present application are an energy storage device, an energy storage system, and a liquid cooling control method for battery packs of the energy storage device. The energy storage device comprises a plurality of battery packs, an input main line, a plurality of input branches, an output main line and a plurality of output branches. Each of the plurality of battery packs comprises a liquid inlet and a liquid outlet; the plurality of input branches are communicated with the input main line; the plurality of output branches are communicated with the output main line. The plurality of input branches are communicated with the liquid inlets of the plurality of battery packs on a one-to-one basis, and the plurality of output branches are communicated with the liquid outlets of the plurality of battery packs on a one-to-one basis. The energy storage device further comprises series branches and control valves, one end of each series branch being communicated with the liquid outlet of one battery pack, and the other end of the series branch being communicated with the liquid inlet of another battery pack; each control valve is used for controlling switching between series connection and parallel connection of one battery pack and another battery pack. The energy storage device of the present application can effectively suppress thermal runaway of battery packs.
Absstract of: WO2025140135A1
Embodiments of the present application provide a battery cell, a battery, and an electrical device. The battery cell comprises a casing, a first insulating piece, and a second insulating piece. The casing is provided with a first wall. The first insulating piece covers the outer side of the casing. At least part of the second insulating piece is located between the first wall and the first insulating piece and covers at least part of an outer surface of the first wall. The first insulating piece covers the casing, the first wall is a part of the casing, and the first insulating piece can perform insulation protection on the first wall of the casing; the second insulating piece covers at least part of the outer surface of the first wall, and the second insulating piece can perform insulation protection on at least part of the first wall; at least part of the second insulating piece is located between the first wall and the first insulating piece, and at least part of the second insulating piece and the first insulating piece can both perform insulation protection on the first wall, so that the insulation protection effect for the first wall is enhanced, and the reliability of the battery cell is improved.
Absstract of: WO2025140137A1
Disclosed in the present application are an electrochemical apparatus, a battery pack and an electrical device. The electrochemical apparatus comprises a housing and an electrode assembly accommodated in the housing. The electrode assembly comprises a first electrode sheet, a second electrode sheet and a separator, wherein the first electrode sheet, the separator and the second electrode sheet are laminated and are wound in a winding direction, and one of the first electrode sheet and the second electrode sheet is a positive electrode sheet, and the other one is a negative electrode sheet. The first electrode sheet comprises a first current collector and a first active substance provided on the first current collector, the first current collector comprising a first main body region and a first blank foil region, the first active substance being provided in the first main body region, and the arrangement direction of the first main body region and the first blank foil region being perpendicular to the winding direction. The first blank foil region comprises a first rolled flat region, the first rolled flat region being far away from the first main body region. The electrochemical apparatus is provided with the first rolled flat region, so that the current-carrying capability can be increased, and the energy loss is reduced when the electrochemical apparatus discharges at a high rate of 15C-20C, thus allowing the electrochemical apparatus to have a higher discharge capacity.
Absstract of: WO2025140134A1
The application discloses an electrochemical apparatus, a battery pack and an electric device. The electrochemical device comprises a housing and an electrode assembly accommodated in the housing. The electrode assembly comprises a first pole piece, a second pole piece and a separator. The first pole piece, the separator and the second pole piece are stacked and wound in a winding direction. One of the first pole piece and the second pole piece is a positive pole piece, and the other one is a negative pole piece. The negative pole piece comprises a negative electrode current collector and a negative electrode active substance. The negative electrode active substance is arranged on the negative electrode current collector. The negative electrode active substance comprises artificial graphite and/or natural graphite. The electrochemical apparatus has high charging capacity in a constant-current charging operation stage, which is beneficial to improving the charging efficiency and shortening the charging time.
Absstract of: WO2025139745A1
The present invention relates to the technical field of batteries, and in particular to a battery. The battery comprises an electrolyte and a positive electrode sheet, the electrolyte comprises an ether nitrile compound, and the ether nitrile compound comprises a compound having the structure of NC-M1-O-M2; M2 is selected from -CN or a group comprising -O-N1-CN, and M1 and N1 are each independently selected from C1-C9 alkyl, C2-C9 alkenyl, C2-C9 alkynyl, and C2-C9 ether; based on the total weight of the electrolyte, the weight content of the ether nitrile compound is Awt%; the positive electrode sheet comprises a lithium cobalt oxide material and a carbon nanotube; and the median particle size Dv50 of the lithium cobalt oxide material is C, the unit of the median particle size Dv50 is μm, the diameter of the carbon nanotube is L, the unit of the diameter is nm, and the battery meets the condition: 0.25≤(A/(C+L))×100≤25. The battery has high cycle stability and good high-temperature storage performance.
Absstract of: WO2025139721A1
A cabinet (100), an energy storage apparatus (300), an energy storage system (400), and an electrical device, relating to the technical field of energy storage apparatuses (300). The cabinet (100) comprises a cabinet body (10), a cabinet door (20) and a pressure relief structure. The cabinet door (20) is connected to the cabinet body (10). The cabinet body (10) and the cabinet door (20) jointly define an accommodating cavity (16). The accommodating cavity (16) is suitable for accommodating a battery (200). The pressure relief structure is arranged on the cabinet door (20) and/or the cabinet body (10). When a thermal management parameter of the accommodating cavity (16) exceeds a first threshold, the pressure relief structure relieves the pressure, and when the thermal management parameter of the accommodating cavity (16) exceeds a second threshold, the cabinet door (20) relieves the pressure, the first threshold being less than the second threshold. By means of the configuration in which the cabinet (100) comprises the cabinet body (10), the cabinet door (20) and the pressure relief structure, the cabinet door (20) is connected to the cabinet body (10), the pressure relief structure is connected to the cabinet door (20) and/or the cabinet body (10), the pressure relief structure relieves the pressure when the thermal management parameter of the cabinet body (100) exceeds the first threshold, and the cabinet door (20) relieves the pressure when the thermal management parameter
Absstract of: WO2025143568A1
An electrode assembly according to the present invention includes: a winding center hole and an outer circumferential surface that are formed by winding a stack, including a first electrode, a second electrode, and a separator interposed therebetween, around a winding axis; and a fixing member covering at least a portion of the outer circumferential surface along the circumferential direction of the outer circumferential surface.
Absstract of: WO2025143561A1
A method and an apparatus for analyzing a battery are disclosed. The battery analysis apparatus applies multiple AC signals having different frequencies to a battery so as to identify impedance for each frequency, identifies a temperature of a place in which a battery impedance is measured, and inputs a tensor including the impedance for each frequency and the temperature to an artificial intelligence model so as to identify whether the battery is defective.
Absstract of: WO2025143806A1
A laser welding jig according to the present invention is applied to a battery cell assembly including a plurality of stacked battery cells and a side frame covering at least a portion of the plurality of battery cells, in which two adjacent leads are bent and welded, and the laser welding jig comprises: a pallet configured to allow the battery cell assembly to be seated thereon; and a protective jig arranged between the two adjacent leads.
Absstract of: WO2025143440A1
Disclosed are: a photocurable 3D printing composition, which is applied to a 3D printer to output a three-dimensional molded product; and a method for manufacturing a molded product with improved thermal stability by using same.
Absstract of: WO2025143430A1
Disclosed are a cylindrical battery cell inspection device and a cylindrical battery cell produced using same, and a battery pack and a vehicle, comprising the cylindrical battery cell. The cylindrical battery cell inspection device according to an embodiment of the present invention includes: a body member in which a cylindrical battery cell moves; a plurality of mirror members coupled to the body member and reflecting again the light reflected from the inspection position of the cylindrical battery cell; and a photographing member photographing the cylindrical battery cell by the light reflected from the mirror members.
Absstract of: WO2025143425A1
The present invention relates to an all-solid-state battery comprising: an electrode comprising a current collector layer and an active material layer; a solid electrolyte layer; a first conductive layer between the current collector layer and the active material layer; and a second conductive layer between the active material layer and the solid electrolyte layer. An all-solid-state battery according to one embodiment includes both the first conductive layer and the second conductive layer, and thus ion and electron transfer efficiency is enhanced and an increase in resistance following a battery cycle is mitigated.
Absstract of: WO2025143422A1
A battery according to an embodiment disclosed in the present document may comprise: a first measurement unit for measuring a first voltage which is the voltage between a first bus bar connecting a first battery cell and a second battery cell and a second bus bar connecting a third battery cell and a fourth battery cell and transferring the first voltage to a management unit; a second measurement unit for measuring a second voltage which is the voltage between a third bus bar connecting the second battery cell and the third battery cell and a fourth bus bar connecting the fourth battery cell and a fifth battery cell and transferring the second voltage to the management unit; and the management unit for calculating the voltage of the third battery cell by performing a mathematical operation for the first voltage and the second voltage.
Absstract of: WO2025143447A1
Disclosed is a gel polymer electrolyte for a lithium battery comprising a gel polymer and a liquid electrolyte, the liquid electrolyte comprising lithium salt and an organic solvent, and the gel polymer being a cross-linked product of i) a multifunctional acryl-based first polymerizable monomer having at least three polymerizable functional groups and ii) a second polymerizable monomer selected from urethane acryl-based monomers having at least two functional groups.
Absstract of: WO2025143491A1
An anode for a lithium secondary battery according to an embodiment of the present disclosure includes: an anode current collector: a first anode mixture layer formed on at least one surface of the anode current collector and containing a first carbon-based active material; and a second anode mixture layer formed on the first anode mixture layer and containing a second carbon-based active material and a silicon-based active material, wherein the first anode mixture layer has a Raman R value according to equation 1, which is smaller than that of the second anode mixture layer. Equation 1 Raman R = ID / IG (where, ID represents the peak intensity value in the absorption region of 1350 to 1380 cm-1 , and IG represents the peak intensity value in the absorption region of 1580 to 1600 cm-1)
Absstract of: WO2025143477A1
A battery module according to one embodiment of the present invention comprises: a battery cell stack in which a plurality of battery cells are stacked; a module case for accommodating the battery cell stack; a bus bar frame arranged at one side of the battery cell stack; one or more bus bars arranged on the bus bar frame; and a pad arranged at the bus bar. In the battery module according to one embodiment of the present invention, the pad coupled to the bus bar is compressed and the bus bar moves to relieve the tension of an electrode lead when the battery cell swells, and thus the electrode tab can be prevented from fracturing.
Absstract of: WO2025143407A1
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 a protecting layer that is on the positive electrode active material layer, wherein: the protecting layer 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: WO2025143375A1
Disclosed are an electrode assembly and a rechargeable battery comprising same. The electrode assembly according to one embodiment is an electrode assembly in which a plurality of electrode plates are wound with separators interposed therebetween. The outermost electrode plate among the plurality of electrode plates comprises: a penetration part located near an end portion of the outermost electrode plate; and a close contact part of which a peripheral portion is cut so as to protrude from the outermost electrode plate, and the portion is folded to be in close contact with the periphery of the penetration part in a state in which the close contact part has penetrated the penetration part.
Absstract of: WO2025143361A1
The present disclosure relates to an activation apparatus, and the technical problem to be solved is to provide a secondary battery which has a stable structure and/or film and of which lifespan characteristics is improved by applying an activation process. To this end, the present disclosure provides an activation apparatus comprising: a chamber in which a secondary battery is accommodated; and an activation unit which charges the secondary battery accommodated in the chamber to a first potential or discharges the secondary battery.
Absstract of: WO2025143206A1
Provided is a battery system comprising: a battery pack having a thickness that changes due to charging and discharging; and a restraining member for restraining the battery pack, the restraining member having a configuration such that, if the pressure applied to the battery pack by the restraining member exceeds a predetermined pressure, because of a change in thickness due to charging and discharging of the battery pack, the restraining member becomes damaged and the restraint of the battery pack is released. The restraining member may restrain the battery pack by means of two plate-like members sandwiching the battery pack along the direction of the thickness.
Nº publicación: WO2025143296A1 03/07/2025
Applicant:
4 TO ONE CO LTD [KR]
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Absstract of: WO2025143296A1
The present invention relates to a ceramic assembly comprising: a solid electrolyte made of a ceramic material; a polyolefin-based polymer sealant; a metal support; and a metal layer deposited on a ceramic surface at a bonding interface between the ceramic solid electrolyte and the polyolefin-based polymer sealant.
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