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1263
results.
Updated on
26/12/2025 [07:11:00]
Results 1050 to 1075 of 1263
Absstract of: WO2025251954A1
A method and apparatus for calculating an evaluated value of a battery, and an electronic device. The method comprises: on the basis of a data set of a battery, calculating the product of scores of the battery in at least three evaluation dimensions and respective weights of the at least three evaluation dimensions, so as to obtain an evaluated value of the battery, wherein the at least three evaluation dimensions comprise the state of health, the safety and the stability, the state of health represents the capability of the battery to store electrical charge, the safety represents the capability of the battery to avoid thermal runaway in use, and the stability represents the capability of the battery to maintain stable operation (operation 101). In the method, an evaluated value of a battery is calculated on the basis of scores in at least three evaluation dimensions, such that the performance of the battery can be comprehensively evaluated. Moreover, data of the battery can be fully mined, thereby improving the evaluation efficiency.
Absstract of: WO2025251944A1
Provided are a battery, a battery module, and a terminal device. The battery comprises a casing and a cell assembly accommodated in the casing. The cell assembly comprises electrode sheets (1) and a separator (5). Each electrode sheet (1) comprises a current collector and an active substance layer located on the current collector. The separator (5) separates the active substance layers on two adjacent electrode sheets (1). At least part of each electrode sheet (1) is a blank area, and no active substance layer is provided in the blank area. The battery further comprises at least one sheet-type sensor (2). The sheet-type sensor (2) is arranged on the separator (5), and is arranged corresponding to the blank area of each electrode sheet (1). By arranging the sheet-type sensor (2) in the battery to measure physical signals, such as the temperature, pressure, air pressure, current, and voltage inside a cell, the working state of the cell can be rapidly predicted on the basis of actual working conditions inside the cell while the impact on the overall thickness of the cell is reduced, thereby achieving real-time monitoring of the cell and improving the safety performance of the battery.
Absstract of: US2025379282A1
A battery system includes a housing and a plurality of battery cells accommodated in the housing, with each of the battery cells including cell terminals. The cell terminals of neighboring battery cells are electrically interconnected via electrical connecting elements. Each electrical connecting element includes a first layer contacting neighboring cell terminals and a second layer disposed on top of the first layer. The melting point of the first layer is greater than a melting point of the second layer.
Absstract of: US2025379265A1
The present application provides a separator, a battery and an electric device. The separator includes a porous base material, and a first coating and a second coating which are respectively located on the two surfaces of the porous base material; when the separator is used for a battery, the first coating faces a negative electrode, and the second coating faces a positive electrode; the first coating includes first particles, the first particles include a solid electrolyte, and the content of the first particles in the first coating is greater than 50 wt %; the second coating includes second particles, the second particles include inorganic particles capable of reacting with lithium dendrites, and the content of the second particles in the second coating is greater than 50 wt %.
Absstract of: US2025379261A1
A lithium ion battery comprises an electrolyte solution and a stacked electrode assembly. The stacked electrode assembly includes a positive electrode layer and a negative electrode layer. The positive electrode layer and the negative electrode layer are alternately stacked in a stacking direction. In the stacking direction, the stacked electrode assembly includes a first region, a second region, and a third region in this order. The second region includes an intermediate point in the stacking direction. The first region includes a first positive electrode active material having a first particle size. Each of the second region and the third region includes a second positive electrode active material having a second particle size and a third positive electrode active material having a third particle size. A relationship of “d2
Absstract of: US2025379257A1
An electrode assembly includes: a separator structure including a first separator and a second separator; a plurality of negative electrode plates spaced from each other along a first direction between the first separator and the second separator; and a plurality of positive electrode plates on the negative electrode plates with the first separator or the second separator therebetween. The separator structure includes a bending portion where the first separator and the second separator are bonded to each other, and the bending portion has a cutaway portion through which the first separator and the second separator are cut in a second direction perpendicular to the first direction.
Absstract of: US2025379259A1
A solid-state battery has an anode including a metal foil current collector and an anode composite on the metal foil current collector such that the metal foil current collector defines an exposed area free of the anode composite. The solid-state battery also has a separator laminated on the anode composite and a tape attached on both sides of the anode, covering the exposed area.
Absstract of: WO2025251230A1
The present application discloses an energy storage device, comprising a first housing, a plurality of battery modules, a heat exchange member, a refrigerant channel, and a first fan, wherein the first housing comprises a first wall; the plurality of battery modules are disposed in the first housing and arranged at intervals in a first direction; the first wall and the heat exchange member are disposed opposite each other in a second direction; in the second direction, a first gap is provided between the plurality of battery modules and the first wall, and a second gap is provided between the plurality of battery modules and the heat exchange member, the first direction being perpendicular to the second direction; the refrigerant channel is located between adjacent battery modules, the refrigerant channel communicating the first gap with the second gap; and the first fan is located in the first housing, the first fan being configured to drive a first refrigerant to flow among the first gap, the second gap and the refrigerant channel. The first fan drives the first refrigerant to flow among the first gap, the second gap and the refrigerant channel to dissipate heat from the battery modules, and by means of the heat exchange member, the first refrigerant exchanges heat with the heat exchange member, thereby further improving the heat dissipation efficiency.
Absstract of: WO2025251234A1
The present application discloses an energy storage module and an energy storage device. The energy storage module comprises battery cell modules, a cooling member, a first support, a covering member, and a refrigerant channel. The cooling member comprises a flow channel, the battery cell modules are connected to the cooling member, and the battery cell modules and the cooling member are arranged in a first direction. The first support supports the battery cell modules. The covering member and the cooling member are spaced apart from each other. At least part of the refrigerant channel is located between the cooling member and the covering member, and the refrigerant channel is communicated with the outside of the energy storage module. Heat dissipation is performed on the battery cell modules by means of the cooling member and air in the refrigerant channel.
Absstract of: WO2025251361A1
A solid-state electrolyte membrane and a preparation method therefor, and a lithium ion battery. The solid-state electrolyte membrane comprises a first membrane layer and a second membrane layer that are stacked, wherein the material of the first membrane layer comprises a first polymer and a lithium salt, the material of the second membrane layer comprises an inorganic ceramic filler, a second polymer, and cellulose, and the first polymer and the second polymer are each independently selected from one or more of PVDF and PVDF-HFP. The solid-state electrolyte membrane has high ionic conductivity.
Absstract of: WO2025251358A1
Provided are a halide solid-state electrolyte material and a preparation method therefor, a solid-state electrolyte membrane, and a lithium ion battery. The chemical formula of the halide solid-state electrolyte material is LixTayInzCl6, wherein y/x is from 0.04 to 1, z=(6-x-5y)/3, and 1>z>0.2. The halide solid-state electrolyte material has better ionic conductivity, can be prepared by a solution method, involves a simple preparation process and low preparation cost, and can meet the requirements of large-scale production.
Absstract of: US2025376579A1
Disclosed are a carboxylmethyl cellulose lithium salt, a method of manufacturing the carboxylmethyl cellulose lithium salt, a negative electrode including the carboxylmethyl cellulose lithium salt, and a rechargeable lithium battery. The method of manufacturing a carboxylmethyl cellulose lithium salt includes performing an alkalization reaction of cellulose and lithium hydroxide, performing an etherification reaction with a halogen-containing acetic acid or a salt thereof, wherein an amine derivative is added during the alkalization reaction or the etherification reaction, and an amount of the halogen-containing acetic acid or a salt thereof added relative to the lithium hydroxide is controlled to a given amount.
Absstract of: US2025376880A1
The invention relates to an electrical locking system (2) for a motor vehicle (1), comprising a plurality of lock devices (3), in particular electrically operable locks, each having an actuator to which electricity can be applied and which serves at least for unlocking and/or opening a motor vehicle door (9) and/or motor vehicle flap (10), each lock device (3) comprising an emergency supply device (5) having at least one energy store (6) that is designed to provide a supply voltage to the lock device (3) at least for the purposes of unlocking and/or opening the lock device (3) in an emergency operating mode that arises as a result of a predetermined emergency situation, in particular in the event of a failure of a main electrical power source of the motor vehicle (1), the electrical locking system being characterized in that the individual energy stores (6) of the emergency supply devices (5) are electrically interconnected (8).
Absstract of: US2025380381A1
An energy storage system is provided that includes a cabinet and a liquid cooling unit. The cabinet includes a cabinet door and a cabinet body that are disposed in a hinged connection manner, and the cabinet door may be opened or closed relative to the cabinet body. The cabinet body includes a battery compartment housing a battery module and a power compartment housing a power module. The liquid cooling unit is positioned on a side of the cabinet door opposed from the cabinet body. The liquid cooling unit is connected to the battery module through a first liquid outlet pipe and a first liquid return pipe, and the liquid cooling unit is connected to the power module through a second liquid outlet pipe and a second liquid return pipe.
Absstract of: US2025379452A1
Embodiments of this application are applicable to the field of charging technologies, and provide a charging method and an electronic device. A to-be-charged apparatus sends first information including remaining electric quantity information of the to-be-charged apparatus to a charging apparatus. The charging apparatus determines a target charging policy from a plurality of candidate charging policies based on the first information. The charging apparatus outputs electric energy to the to-be-charged apparatus according to the target charging policy. In this way, the charging apparatus may flexibly determine the target charging policy from the plurality of candidate charging policies according to the remaining electric quantity information of the to-be-charged apparatus, and then output the electric energy to the to-be-charged apparatus according to the target charging policy. To be specific, charging policies of the to-be-charged apparatus are richer, and charging flexibility of the to-be-charged apparatus is improved.
Absstract of: WO2025253690A1
Provided is a winding device capable of more surely preventing an unintended change in the circumferential length of a winding core due to a winding fastening force, and miniaturizing the winding core. This winding core includes: a fixed core piece 81; a movable core piece 82; a screw shaft 83 having a first screw part 83a and a second screw part 83b opposite to the first screw part 83a; a first block 84 which is provided on an outer periphery of the first screw part 83a and can move by means of rotation of the screw shaft 83; and a second block 85 which is provided on an outer periphery of the second screw part 83b and can move in a direction opposite to the direction in which the first block 84 moves by means of rotation of the screw shaft 83. The first block 84 is provided with a first inclined surface 84a, and the second block 85 is provided with a second inclined surface 85a opposite to the first inclined surface 84a. The movable core piece 82 is pressed against both the inclined surfaces 84a, 85a. By moving both blocks 84, 85 by means of the rotation of the screw shaft 83, the circumferential length of the winding core is changed.
Absstract of: WO2025251663A1
A negative electrode sheet (100) and a preparation method therefor, and a battery and an electric device. The negative electrode sheet (100) comprises a current collector (10) and n active layers (20), wherein the current collector (10) has a first surface (11); the n active layers (20) are sequentially stacked on the first surface (11) in a first direction (X), the first direction (X) being perpendicular to the first surface (11); each active layer (20) comprises a first hard carbon material and/or a second hard carbon material; the content of the first hard carbon material in an (m+1)th active layer (20) is less than the content of the first hard carbon material in an mth active layer (20), the content of the second hard carbon material in the (m+1)th active layer (20) is greater than the content of the second hard carbon material in the mth active layer (20), the mth active layer (20) is closer to the first surface (11) than the (m+1)th active layer (20), and 1≤m≤n-1 is satisfied, both m and n being positive integers; and the proportion of the sloping-region capacity of the first hard carbon material is b1, and the proportion of the sloping-region capacity of the second hard carbon material is b2, satisfying b1
Absstract of: WO2025253682A1
When X-ray diffraction measurement using CuKα rays is performed at room temperatures, let that the diffraction intensity of the strongest peak in a diffraction pattern is defined as IX, that the diffraction intensity of the peak at 2θ=25.50°±0.5° is defined as IA, and the diffraction intensity of the peak at 2θ= 32.46°±0.5° is defined as IB, this sulfide solid electrolyte is characterized in that the peak intensity ratio IA/IX which is the ratio of IA to IX is 0.5 or less, and that the peak intensity ratio IB/IXI which is the ratio of IB to IX is 0.5 or less.
Absstract of: US2025379299A1
The present disclosure relates to a secondary battery and a manufacturing method of the secondary battery. The secondary battery according to an embodiment of the present disclosure includes a case including a cylindrical side wall portion having a receiving space therein, a closed end portion formed at one end of the side wall portion, and an opening provided at another end of the side wall portion; and an electrode assembly received in the receiving space, wherein the side wall portion includes a first region including the one end, a second region including the other end, and a third region including a region other than the first region and the second region, and wherein mechanical strength of the first region is higher than mechanical strength of the third region.
Absstract of: US2025379256A1
Embodiments of the invention are related to moderately solvating electrolytes (MSEs) and rechargeable metal-sulfur batteries containing such electrolytes. Electrolytes include a metal salt, a highly solvating solvent, a weakly or lowly solvating solvent, and a non-solvating solvent (or diluent). Example rechargeable batteries including such electrolytes are lithium-sulfur (Li—S), sodium-sulfur (Na—S), potassium-sulfur (K—S), magnesium-sulfur (Mg—S), and aluminum-sulfur (AI-S) batteries.
Absstract of: US2025379275A1
A computer system has processing circuitry to: acquire cell data from cell sensors of an electrical energy storage pack of an electrical energy storage system of a vehicle, determine at least two states of the cells based on evaluating the cell data; input the at least two states as input to a reinforcement learning algorithm configured to calculate control signals to balance the at least two states across the cells, and provide an output indicating the control signals.
Absstract of: US2025379322A1
A power storage device includes a metal case with a safety valve part. The safety valve part includes a hole surrounding edge portion that forms a valve hole penetrating through the case and a valve member hermetically sealing this valve hole. The valve member includes a plate circumferential edge portion and a ring-shaped resin valve member that is made of thermoplastic resin and hermetically seals a space between the plate circumferential edge portion of the metal seal plate and the hole surrounding edge portion of the case. The safety valve part is a first safety valve part of a temperature opening type to be opened by softening or melting of the resin valve member by heat.
Absstract of: US2025379320A1
Provided are a battery module, and a battery pack and a vehicle including the same. The battery module includes a plurality of pouch-type battery cells, a module case in which the plurality of pouch-type battery cells are accommodated and a venting hole is formed, and a cell cover at least partially surrounding and supporting at least some of the plurality of pouch-type battery cells, in an inner space of the module case, wherein at least a portion of the cell cover is inserted into the venting hole.
Absstract of: US2025379222A1
A disclosed hydrogen-absorbing alloy has a composition represented by a formula LaaR(b-a)MgcZrdNixAlyMz, wherein R is at least one rare earth element including Y but not including La, 0.10≤a≤0.40, 0.67≤b≤0.96, 0.01≤c≤0.30, 0.01≤d≤0.05, and b+c+d=1.00 are satisfied, M is at least one element selected from the group consisting of Co, Mn, Ag, and Sn, 3.10≤x≤3.80, 0.03 ≤y≤0.25, 0≤z≤0.05, and 3.45≤x+y+z≤3.85 are satisfied, and the alloy includes, as crystal phases, four phases respectively having a Ce2Ni7 type structure, a Ce5Co19 type structure, a Pr5Co19 type structure, and a CaCu5 type structure, at specific proportions.
Nº publicación: US2025379317A1 11/12/2025
Applicant:
UNIV MICHIGAN REGENTS [US]
THE REGENTS OF THE UNIVERSITY OF MICHIGAN
Absstract of: US2025379317A1
A battery pack comprises an enclosure, and a plurality of batteries arranged within the enclosure. Each battery includes one or more electrochemical cells, and a case structured to contain the one or more electrochemical cells in an interior space of the case. Each case comprises a first end wall, an opposite second end wall, and a multi-sided wall connecting the first end wall and the second end wall thereby defining the interior space of the case. A multi-sided wall of the case of at least one of the batteries comprises at least one inwardly directed recess having a first section dimensioned to matingly engage a second section of a multi-sided wall of another of the batteries when the plurality of batteries are arranged within the enclosure.
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