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1617
results.
Updated on
21/05/2025 [07:24:00]
Results 325 to 350 of 1617
Absstract of: US2025158076A1
The present disclosure provides as an electrode 1, comprising a 3D composite current collector 2 having an electrically conductive substrate current collector 3 with a plurality of laterally distributed electrically conductive upstanding scaffolding elements 4 that comprises structures 6 of agglomerated carbon nanotubes covered by a passivation layer 10 for shielding the carbon nanotubes 7 from a direct contact with an electrode or electrolyte material, whereby said passivation layer comprises a composition allowing electron transport to/from the structure of agglomerated carbon nanotubes.In a preferred embodiment the electrode is coated with a stack of functional battery layers including one or more of a seed layer 20, an anode metal layer 30, and an anode passivation layer 40.The present disclosure further relates to a manufacturing method and an energy storage device comprising the electrode.
Absstract of: US2025158064A1
The present disclosure provides a negative electrode mixture for a sodium ion battery that can improve charge capacity and discharge capacity, and charge-discharge efficiency, a sodium ion battery comprising such a negative electrode mixture, and a method for manufacturing thereof. The negative electrode mixture for a sodium ion battery of the present disclosure comprises a negative electrode active material and zirconium oxide, wherein the negative electrode active material comprises hard carbon, and a ratio of a mass of the zirconium oxide relative to a total mass of the hard carbon and the zirconium oxide is 1% by mass or more and 20% by mass or less. The sodium ion battery 1 of the present disclosure comprises a negative electrode active material layer 20, and the negative electrode active material layer 20 comprises a negative electrode mixture of the present disclosure.
Absstract of: US2025158255A1
The present application provides a battery and a battery system. The battery includes a cell, a data processing chip, and a charging protector. The charging protector is electrically connected to the cell and the data processing chip, and is arranged to control an on or off of a circuit connecting the cell and the data processing chip, thereby avoiding overcharging or short circuiting of the cell due to damage of the data processing chip, prolonging service life of the cell, and being beneficial to improving service life and working stability of the battery system.
Absstract of: US2025158253A1
A power battery cover is provided. A terminal pressing block of the power battery cover is arranged above a top cover sheet, a pole bottom plate is arranged below the top cover sheet, a copper-aluminum composite plate is formed into composite poles by means of a cold heading or stamping process, and a copper base part is connected to the pole bottom plate by laser welding. Each composite pole sequentially passes through the terminal pressing block, the top cover sheet and the pole bottom plate from top to bottom, a sealing member is sleeved on the composite pole and covers a composite connection surface between an aluminum base part and the copper base part in a sealing manner. The processing steps of the composite pole are less, and the assembly steps and assembly methods are simplified, which improves the processing efficiency and greatly reduces the cost.
Absstract of: US2025158248A1
The application discloses a battery cell. The battery cell includes a top cover assembly, two cell packs and pins; the two cell packs are arranged side by side along a first direction, and tabs are respectively provided at two ends of each of the cell packs along a second direction; the pins are each include a first connection portion and a second connection portion; the first connection portion is connected to the top cover assembly, and the second connection portion includes two welding plates that are arranged at an interval and are perpendicular to the first direction, and two of the tabs of the two cell packs located on a same side are respectively connected to sides of the two welding plates facing away from each other, and a distance between surfaces of the two welding plates facing away from each other along the first direction is d.
Absstract of: US2025158247A1
A battery cell, a battery, and an electrical apparatus. The battery cell comprises a casing assembly, an electrode assembly, and a current collecting member. The casing assembly comprises an electrode lead-out part used for inputting or outputting electric energy. The electrode assembly is accommodated in the casing assembly, and the electrode assembly comprises a main body part and a tab, the tab being connected to the main body part, and the tab and the electrode lead-out part being made of different materials. The current collecting member comprises a first connecting part made of the same material as the electrode lead-out part and a second connecting part made of the same material as the tab, the first connecting part being connected to the second connecting part, the first connecting part being welded to the electrode lead-out part, and the second connecting part being welded to the tab.
Absstract of: US2025158438A1
Proposed is a battery charge/discharge device which solves a discontinuity problem caused by a battery capacity difference in a constant-current mode of collectively charging or discharging multiple batteries connected in series. The proposed device comprises: a main power conversion unit which charges or discharges multiple batteries connected in series; multiple auxiliary power conversion units which charge or discharge the multiple batteries, respectively; and a control unit which controls the main power conversion unit to perform constant-voltage control of the multiple batteries on the basis of a total voltage obtained by summing the voltages of the multiple batteries in a constant-voltage interval for the multiple batteries, and controls the multiple auxiliary power conversion units to maintain the voltage of each of the multiple batteries at a target voltage of a corresponding battery.
Absstract of: US2025158178A1
The disclosure provides a battery, a battery module, and an electric device. The battery includes a housing, a cell, and a cover plate assembly; the housing includes a first port and an accommodating cavity, and the cell is disposed in the accommodating cavity; the cover plate assembly is configured to seal the first port of the housing and includes a cover plate, and the cover plate includes a positioning portion disposed at a side of the cover plate close to the housing; and the cover plate is welded to the housing through the positioning portion to seal the first port of the housing.
Absstract of: US2025158163A1
A heat dissipation air deflector is suitable for being in contact with a battery and is used for dissipating heat of the battery. An air inlet chamber and air outlet chambers adjacent to two sides of the air inlet chamber are formed inside the heat dissipation air deflector; an air inlet communicated with the air inlet chamber is formed at one side of the heat dissipation air deflector; two air outlets are formed at other opposite sides of the heat dissipation air deflector; the two air outlets are respectively communicated with the two air outlet chambers; and the positions where the air inlet chamber is adjacent to the two air outlet chambers are communicated with each other by means of an air hole.
Absstract of: US2025158162A1
The battery pack includes a battery stack, a battery case that houses the battery stack, an intake chamber, an exhaust chamber, and flow regulation plates provided in the intake chamber. The battery stack is configured by stacking battery cells and has a cooling air passage. The intake chamber is positioned below the battery stack in the battery case, communicates with the cooling air passage, and receives supply of cooling air flowing from an intake port formed at one end in a stacking direction of the battery cells to another end in the stacking direction. The exhaust chamber is positioned above the battery stack in the battery case and communicates with the cooling air passage. The flow regulation plates are positioned on a downstream side of the cooling air, respectively formed to extend in the stacking direction, and disposed at intervals in a direction orthogonal to the stacking direction.
Absstract of: US2025158161A1
A liquid cooling assembly and a battery pack are provided in the application. The liquid cooling assembly includes liquid cooling plates and a liquid inlet main pipe. The liquid cooling plates are arranged in sequence at intervals. An installation space for installing a heating element is formed between adjacent liquid cooling plates. The liquid cooling plates include circulation channels, and liquid inlets each communicating with a corresponding circulation channel. The liquid inlet main pipe includes first mating ports. The first mating ports and the liquid inlets are arranged by one-to-one correspondence. First mating tubes are connected between the first mating ports and the liquid inlets, and each first mating tube is at least partially flexible.
Absstract of: US2025158138A1
An all-solid-state battery cell includes C cathode electrodes including a cathode active material layer arranged on at least one side of a cathode current collector, A anode electrodes including an anode active material layer and an anode current collector, and S separators comprising a sulfide membrane, where C, A, and S are integers greater than one. A lithium layer arranged between the anode current collector and the anode active material layer. The cathode active material, the anode active material, and the separator are densified prior to arranging the lithium layer and the anode current collector adjacent to the anode active material layer.
Absstract of: US2025158078A1
A negative electrode plate, including: a current collector and a first active layer provided on a surface of the current collector, where the first active layer includes a first active material and a second active material, the specific surface area of the first active material is greater than the specific surface area of the second active material, the current collector includes a first region and a second region which are arranged in a first direction, and the first active layer corresponding to the first region includes a first active material, and the first active layer corresponding to the second region includes a second active material, the first region being a region formed by the negative electrode plate protruding from a positive electrode plate in the first direction, and the second region being a region formed by the negative electrode plate overlapping with the positive electrode plate in the first direction.
Absstract of: US2025158074A1
Provided is a lithium-supplementing additive comprising α-phase lithium nitride and/or β-phase lithium nitride. According to the lithium-supplementing additive provided by the present application, the comprised pure α-phase lithium nitride has high lithium ion conductivity, thereby facilitating the de-intercalation of lithium ions; the comprised pure β-phase lithium nitride has a high energy barrier for lithium-ion mobility and a high decomposition voltage, so that the mobility of lithium ions in a battery system is more stable; and the comprised mixed-phase lithium nitride has reduced activity and can be prevented from reacting with widely used N-methylpyrrolidone (NMP) and polyvinylidene fluoride (PVDF) during a homogenizing process, and thus has good stability.
Absstract of: US2025158062A1
This application discloses a secondary battery including a positive electrode plate and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and a positive electrode film disposed on a surface of the positive electrode current collector and comprising a positive active material, the negative electrode plate comprises a negative electrode current collector and a negative electrode film disposed on a surface of the negative electrode current collector and comprising a negative active material. The positive active material comprises one or more of layered lithium transition metal oxides and modified compounds thereof, and a resistance R of the negative electrode plate satisfies: 6.0 mΩ≤R≤12.0 mΩ; or the positive active material comprises one or more of lithium-containing phosphates with olivine structure and modified compounds thereof, and a resistance R of the negative electrode plate satisfies: 3.0 mΩ≤R≤7.0 mΩ.
Absstract of: US2025158069A1
Provided is a nonaqueous binder for electrodes or separators, which is used in a lithium ion battery that has excellent cycle life characteristics at high temperatures. A nonaqueous binder for electrodes or separators of lithium ion batteries, which is obtained by complexing cellulose nanofibers and a thermoplastic fluororesin, and which is characterized in that the cellulose nanofibers have a fiber size (diameter) of from 0.002 μm to 1 μm (inclusive), a fiber length of from 0.5 μm to 10 mm (inclusive), and an aspect ratio ((fiber length of cellulose nanofibers)/(fiber diameter of cellulose nanofibers)) of from 2 to 100,000 (inclusive).
Absstract of: US2025158242A1
A secondary battery, a battery assembly, and an electronic apparatus is provided. The secondary battery includes a housing, an electrode terminal, an electrode assembly, and a current collecting member. The housing includes an end wall and a side wall. The end wall includes a terminal hole and an explosion-proof notch. An area surrounded by the explosion-proof notch on the end wall is an explosion-proof area. The electrode terminal is insulated, sealed, and fixed to the end wall. The electrode assembly is disposed in the housing, and a side of the electrode assembly facing the end wall includes a first electrode tab. The current collecting member includes a main body portion connected to the first electrode tab and a terminal connecting portion connected to the electrode terminal. The main body portion includes a deformable portion which is adapted to maintain the connection between the electrode terminal and the main body portion.
Absstract of: US2025158244A1
An electrode assembly and a rechargeable battery are disclosed. An electrode assembly includes: a plurality of first electrode plates that include a plurality of first electrode tabs extending in a first direction and are stacked in a second direction crossing the first direction; a plurality of second electrode plates that include a plurality of second electrode tabs spaced apart from the plurality of first electrode tabs to extend in the first direction and are stacked in the second direction to cross the plurality of first electrode plates; and a separator that is located between each of the plurality of first electrode plates and each of the plurality of second electrode plates, and the plurality of first electrode tabs have a same first bending shape bent at least twice in the second direction.
Absstract of: US2025158441A1
A charging apparatus functions in charging a rechargeable battery system, and includes an AC/DC converter, a controller, a DC output unit and a communication unit. The communication unit functions in receiving a current state of health (SOH) percentage and a current state of charge (SOC) percentage associated with the rechargeable battery system. The controller determines a selected SOC percentage from a plurality of predetermined SOC percentages in accordance with the current SOH percentage and a relationship stored therein. The controller controls the AC/DC converter to convert an AC power into a charging DC, and to output the charging DC to the DC output unit to charge the rechargeable battery system until the current SOC percentage equals the selected SOC percentage.
Absstract of: US2025158240A1
According to one embodiment, provided is a battery module including a plurality of single-batteries and a construction having a stacked structure. Each of the single-batteries includes a first electrode and a second electrode. The construction includes a first electrode lead electrically connected to the first electrode and including a hard metal, a second electrode lead electrically connected to the second electrode and including a soft metal having a lower hardness than the hard metal, and a slab including the hard metal. The stacked structure includes the slab, a part of the first electrode lead, and a layer of an intermetallic compound from the hard metal and the soft metal. The plurality of single-batteries is electrically connected in series by the construction.
Absstract of: US2025158252A1
A terminal, a top cover structure, a battery cell, a battery module, and a battery pack are disclosed, and the present application relates to the technical field of batteries, and. The terminal includes a first metal part and a second metal part connected to each other. a protruding portion is arranged at one of the first metal part and the second metal part, a first recessed portion is arranged at another one, the protruding portion is connected to the first recessed portion in an embedded manner; and an edge of one end of the second metal part extends outward to form an extension edge, a second recessed portion is arranged at the first metal part, the extension edge is embedded in the second recessed portion.
Absstract of: WO2025098184A1
A current collector, an electrode sheet, an electrochemical device and a current collector manufacturing method. The current collector comprises a support layer, a first metal layer and a second metal layer. The support layer comprises a first surface and a second surface which are arranged opposite each other. The first metal layer is connected to the first surface. The second metal layer is connected to the second surface. The support layer is configured to expand when the temperature of the current collector reaches a preset temperature, so that the distance between the first metal layer and the second metal layer is increased, in order to block heat transmission between the first metal layer and the second metal layer and isolate a location where a short circuit occurs between the first metal layer and the second metal layer. The preset temperature is 120-150 °C, such that the risk of affecting the normal use of an electrochemical device is reduced, and heat transmission can be blocked in a timely manner and a short-circuit location can be isolated in a timely manner, and thus the risk of thermal runaway occurring in the electrochemical device is reduced.
Absstract of: WO2025098096A1
A lithium-ion battery that improves high-temperature storage and optimizes high-temperature cycle performance. The lithium-ion battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the positive electrode comprises a positive electrode material layer comprising a high-nickel positive electrode active material; the negative electrode comprises a negative electrode material layer comprising a silicon-based negative electrode active material; and the non-aqueous electrolyte comprises a lithium salt and an organic solvent. The organic solvent comprises a cyclic carbonate, and the cyclic carbonate comprises fluoroethylene carbonate and propylene carbonate. The lithium-ion battery satisfies the following conditions: 0.2≤S/F≤2, 0.2≤P/F≤3.5, 3≤S≤15, 2≤F≤15, 2≤P≤25, and 15≤C≤40. In the lithium-ion battery, the electrochemical stability of a high-nickel silicon-based system battery is ensured by controlling the content of a cyclic carbonate; and by means of the synergistic effect of fluoroethylene carbonate and propylene carbonate, the high-temperature storage performance and high-temperature cycle life of the lithium-ion battery are optimized, and gas production during storage is reduced.
Absstract of: WO2025098256A1
A case assembly (10) of a battery (100), a battery (100), and an electrical device. The case assembly (10) of the battery (100) comprises a first case (11) and a second case (12). The periphery of one of the first case (11) and the second case (12) has a curled structure (14), and the periphery of the other of the first case (11) and the second case (12) has a flange structure (13). The flange structure (13) is snapped into the curled structure (14). The flange structure (13) comprises a lateral flange (131). One of the first case (11) and the second case (12) comprises first side plates (111). The curled structure (14) comprises a lateral curled edge (141), and the lateral curled edge (141) is connected to edges of the first side plates (111). The lateral flange (131) is disposed opposite to the first side plates (111) in a width direction of the case assembly (10) to be snapped into the lateral curled edge (141). The space waste is reduced, the space utilization is improved, and the quantity of studs is further reduced, so that the weight of the case assembly (10) can be reduced, the lightweight design of the battery (100) can be achieved, and the production efficiency of the battery (100) can be improved.
Nº publicación: US2025158044A1 15/05/2025
Applicant:
GM GLOBAL TECH OPERATIONS LLC [US]
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Absstract of: US2025158044A1
A negative electrode of a battery that cycles sodium ions includes a silicon-based electroactive material including two-dimensional silicon layers having a hexagonal crystal structure. The silicon-based electroactive material is configured to intercalate sodium ions between the two-dimensional silicon layers during charge of the battery and form an alloy of silicon and sodium. The silicon-based electroactive material is manufactured by extracting alkali metal ions and/or alkaline earth metal ions from a silicide precursor including two-dimensional silicon layers having a hexagonal crystal structure and spaced apart from one another by planar monolayers of alkali metal ions and/or alkaline earth metal ions. The alkali metal ions and/or the alkaline earth metal ions are extracted from the silicide precursor such that the hexagonal crystal structure of the two-dimensional silicon layers is retained in the silicon-based electroactive material.
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