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955
resultados
Última actualización
09/02/2026 [07:06:00]
Resultados 375 a 400 de 955
Resumen de: US20260031319A1
The electrode for a secondary battery includes an electrode current collector and an electrode mixture layer formed on at least one surface of the electrode current collector so that a portion of the electrode current collector is exposed to form an uncoated portion, wherein a retention rate of tensile strength of the uncoated portion, according to Equation 1 below, is 0.75 or greater,RTS=TSNC/TSMLEquation1where RTS is a retention rate of tensile strength of the uncoated portion, TSNC is the tensile strength of the uncoated portion in a region excluding region A, a portion of the uncoated portion set in the direction of the electrode mixture layer from the end of the uncoated portion, and TSML is the tensile strength of the electrode current collector having the electrode mixture layer formed on at least one surface thereof.
Resumen de: US20260031397A1
An electrochemical apparatus includes a positive electrode, a negative electrode, and an electrolyte, where the positive electrode includes a positive electrode active material, the positive electrode active material contains a manganese element and a cobalt element, and based on a total mass of the positive electrode active material, a mass percentage of the manganese element is B %; the electrolyte includes a sulfonyl imide lithium salt, and based on a total mass of the electrolyte, a mass percentage of the sulfonyl imide lithium salt is C %; where 0.1≤C≤15 and 0.02≤C/10B≤30.
Resumen de: US20260031384A1
An electrode assembly has a structure in which a first electrode, a second electrode, and a separator interposed therebetween are wound. An outermost coated portion is the coated portion of the first electrode. A winding end of the separator extends further from the winding end of the coated portion of the first electrode. A fixing member is attached to the winding end of the separator along the axial direction from a point spaced apart from the axial end of the separator. When the winding end corner of the separator is folded as much as possible with the axial end of the fixing member acting as a folding bias point so that its outer surface faces the outer circumference, the winding end corner of the coated portion of the first electrode is not exposed to the outside. A cylindrical battery may include the electrode assembly. A battery pack may include the cylindrical battery, and vehicle may include the battery pack.
Resumen de: US20260031385A1
A secondary battery includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The positive electrode plate includes a positive electrode current collector, and a positive electrode active material layer and an inorganic coating are provided on a surface of the positive electrode current collector. The electrolyte includes an additive, and the additive includes at least one of lithium difluorophosphate, succinonitrile, adiponitrile, 1,3,6-hexanetricarbonitrile, or 1,2,3-tris(2-oxyethoxy)propane. A mass per unit area of the inorganic coating is A g/m2, and based on a mass of the electrolyte, a mass percentage of the additive is B %, satisfying 0.01≤B/A≤5. Selection of the foregoing additives and control of B/A within the foregoing range are conducive to improving high-temperature safety performance of the secondary battery at high voltage.
Resumen de: WO2026024392A1
Disclosed is a method to rectify a battery discharge profile of a rechargeable battery so that the discharge current is greater than the charge current. The method includes two steps. The first step is an intermittent or pulsed discharge current protocol. It assures that the pulse discharge current is always higher than the charge current while the nominal discharge current is lower than the charge current. The second step includes a converter, that is used to convert the pulsed discharge current profile from the rechargeable battery into a continuous discharge current profile wherein the continuous current is smaller than the rechargeable battery charge current. The disclosed rectification method enables the rechargeable battery to power a device at an optimally lower rate for a certain applications with a significantly extended cycle life for the rechargeable battery.
Resumen de: WO2026023891A1
A battery assembly according to one embodiment of the present invention may comprise: a plurality of battery cells; a battery housing in which the plurality of battery cells are accommodated; an insulating plate including a plurality of through-holes respectively corresponding to the plurality of battery cells and stacked on the plurality of battery cells; a metal plate disposed on the insulating plate and electrically connecting the plurality of battery cells; and a battery management unit which is electrically connected to the metal plate and controls the charging and discharging of the plurality of battery cells.
Resumen de: WO2026023955A1
The present invention relates to an anode for a lithium secondary battery and a manufacturing method therefor. The anode has a pattern structure in which a first region and a second region that have a predetermined deviation in L* of CIE LAB colorimeter are alternately disposed on a surface of an anode active layer, thereby having excellent adhesion between an anode current collector and the anode active layer. In addition, the anode has the advantages of not only improving a swelling phenomenon during charging, but also having excellent rapid charging performance.
Resumen de: WO2026023888A1
The present invention relates to a pouch-type battery cell tray having a temperature sensing function, the pouch-type battery cell tray comprising: an outer frame forming a first space to accommodate a plurality of pouch-type battery cells, the top surface and a portion of the side surface thereof being open; a seating unit which is disposed in the first space, accommodates the plurality of pouch-type battery cells in the vertical direction, and has a second space formed between the plurality of pouch-type battery cells; and a temperature sensor unit which is disposed on the side surface of the outer frame and is provided to measure the temperature of the plurality of pouch-type battery cells accommodated in the first space.
Resumen de: WO2026023745A1
The present invention relates to a preparation method of lithium sulfide having excellent performance as a solid electrolyte raw material, and lithium sulfide prepared therefrom. Specifically, the present invention relates to: a preparation method of lithium sulfide, comprising adjusting, during preparation of lithium sulfide, the particle size of raw materials and reaction conditions so as to minimize residual impurities in lithium sulfide, and improving the flow characteristics and aggregation characteristics of particles, thereby providing an excellent solid electrolyte raw material; and lithium sulfide.
Resumen de: WO2026021090A1
A battery pack has a first direction, a second direction and a third direction which intersect in pairs. The battery pack comprises a battery case (10) and thermal management structures (20); the battery case (10) comprises a case body (11) and an upper cover (12), the case body (11) is connected to the upper cover (12) to form a mounting cavity, and the thermal management structures (20) are arranged in the mounting cavity; and each thermal management structure (20) comprises a cooling portion (21) and a first mounting portion (22), the cooling portion (21) is connected to the first mounting portion (22), and the first mounting portion (22) is connected to the upper cover (12). The cooling portions (21) of the thermal management structures (20) are connected to the first mounting portions (22), and the first mounting portions (22) are connected to the upper cover (12), so that after the battery pack is mounted in a vehicle body, the stress on the thermal management structures (20) may be directly transmitted to the vehicle body rather than being transmitted to the vehicle body by means of components such as a side frame of the battery pack, thereby improving the safety performance of the battery pack.
Resumen de: WO2026021202A1
The present application relates to the technical field of batteries. Disclosed are a battery cell cover plate assembly, a battery cell and a power device. The battery cell cover plate assembly comprises a cover plate body and a sealing bead. The cover plate body is provided with a liquid injection hole, and the inner diameter of the liquid injection hole is A. The sealing bead is provided in a compressed manner in the liquid injection hole and is used for sealing the liquid injection hole, and the diameter of the sealing bead is B. The compression ratio of the sealing bead to the liquid injection hole is K, satisfying: K=(B-A)/A, and 4%≤K≤40%. The battery cell cover plate assembly provided in the present application can ensure the effect of the sealing bead sealing the liquid injection hole. The present application provides a new liquid injection hole sealing structure, which is different from the traditional sealing structure using plastic plugs and aluminum rivets, and can effectively improve the sealing effect for liquid injection holes. In addition, in the present application, the liquid injection hole is sealed only by using the sealing bead, allowing for fewer structural members, thereby effectively reducing costs. During production, a sealing bead can simply be pressed into a liquid injection hole, thereby reducing processing procedures, accelerating the production cycle, and improving economic benefits.
Resumen de: WO2026021203A1
Disclosed in the present application are a separator, a secondary battery, and an electrical apparatus. The separator comprises a substrate and a bonding coating distributed on at least one surface of the substrate; the bonding coating comprises organic coatings and connection bridges, the organic coatings being distributed on the surface of the substrate, two adjacent organic coatings being connected by means of one connection bridge, and the width of the connection bridges being less than the maximum size of the organic coatings in the width direction of the connection bridges. The separator of the present application ensures an electrolyte to undergo continuous diffusion and wetting on the surface of the coating, thereby effectively improving the wettability of the electrolyte; the organic coatings are distributed on the surface of the substrate at equal intervals, resulting in small blockage of the substrate; after coating, the air permeability value of the separator increases slightly, and the obstruction to the transmission of lithium ions is low, which help to reduce the internal resistance of batteries and improve the bonding force between the separator and electrode sheets, thereby reducing the conditions of displacement or misalignment between positive and negative electrode sheets in the production process of secondary batteries.
Resumen de: US20260033038A1
A solar cell structure includes: a solar cell; an adhesive portion including a plurality of fixing adhesive points provided on a surface of the solar cell at intervals in a first direction; and a conductive component, a surface of the conductive component facing the solar cell being provided with a plurality of first contact regions and a plurality of second contact regions arranged alternately in the first direction; the conductive component is fixed to the plurality of fixing adhesive points through the plurality of first contact regions, the plurality of fixing adhesive points electrically isolate the solar cell from the conductive component in the plurality of first contact regions, the conductive component is electrically in contact with a region on the solar cell other than the plurality of fixing adhesive points through the plurality of second contact regions, to form discontinuous contact between the conductive component and the solar cell.
Resumen de: US20260032805A1
An electronic substrate unit that is accommodated inside a housing of a battery pack includes an electronic substrate on which a circuit is formed, and a wireless module mounted on the electronic substrate, in which the electronic substrate includes a plurality of attachment portions of the wireless module, and the wireless module is provided on the electronic substrate in a one-on-one manner, and is attached to one of the plurality of attachment portions.
Resumen de: US20260032875A1
A charging pile includes one or more groups of charging connectors, a thermal management system, a first liquid outlet connector, and a first liquid inlet connector. Each group of charging connectors is configured to output electric energy to an electric vehicle, the first liquid outlet connector is configured to connect to a liquid injection port of the electric vehicle, and the first liquid inlet connector is configured to connect to a liquid return port of the electric vehicle. The thermal management system forms a coolant circulation loop with the electric vehicle via the first liquid outlet connector and the first liquid inlet connector, so that the thermal management system dissipates heat from a power battery of the electric vehicle. In addition, the thermal management system may further provide coolant for a liquid cooling cable connected to each group of charging connectors.
Resumen de: US20260032860A1
A liquid-cooled high-voltage box includes a base plate, a cover plate, and a frame, where the base plate is arranged on a first side of the frame, and the cover plate is arranged on a second side of the frame; the base plate, the cover plate, and the frame encloses a chamber for accommodating a high-voltage component, a cavity for allowing a liquid coolant to flow is arranged in the base plate, and the high-voltage component is arranged on the base plate; an inlet through which the liquid coolant is injected and an outlet through which the liquid coolant is discharged are arranged on the base plate, and the inlet, the cavity, and the outlet sequentially communicate with each other.
Resumen de: US20260031466A1
A cell separating element for arrangement between two battery cells, which includes an outer wall which encloses an interior space and which provides a first outer wall and an opposite second outer wall, a first cooling region located in the interior space, which adjoins the first outer wall and which includes a first cooling channel, and a second cooling region located in the interior space, which adjoins the second outer wall and which includes a second cooling channel. The cell separating element includes a compression layer made of an elastically deformable material arranged in the interior space. The compression layer is arranged between the first and second cooling regions with respect to the first direction.
Resumen de: US20260031393A1
In one aspect of the disclosure, an electrode assembly is presented. The electrode assembly includes a positive electrode, a negative electrode, a separator positioned between the positive electrode and the negative electrode, and an electrolyte. The electrolyte includes lithium hexafluorophosphate, lithium bis(fluorosulfonyl)imide, fluoroethylene carbonate, vinylene carbonate, and an additive dissolved in a solvent of ethylene carbonate and ethyl methyl carbonate. This electrolyte saturates the negative electrode, the positive electrode, and the separator. The additive is (S)-N-(1-(2-((4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)methyl)pyrrolidin-1-yl)-3,3-dimethyl-1-oxobutan-2-yl)-3-methyl-2-(2-oxo-1,3-diazaspiro4.5decan-1-yl)butanamide, contributing to improved performance and stability of the electrode assembly.
Resumen de: US20260031400A1
The present invention addresses the problem of providing: an electrolyte that can be used to produce a power storage device and has an excellent balance between solubility in organic solvents (non-aqueous solvents), charge/discharge efficiency, −10° C. resistance value, cycle characteristics (volume change rate, capacity retention rate, resistance change rate), and high-temperature characteristics; a reinforcing agent; an electrolyte solution; a power storage device produced using the same; and a method for producing a lithium boron fluoride complex compound and a lithium complex compound for an electrolyte or a reinforcing agent. This electrolyte for a power storage device contains a lithium boron fluoride complex compound having a specific substituent.
Resumen de: US20260031383A1
An apparatus for manufacturing secondary battery, which cuts an electrode tab of the secondary battery, a method for manufacturing a secondary battery using the same, and a secondary battery manufactured using the same are described.The secondary battery includes: an electrode assembly in which electrodes and separators are alternately stacked; and an electrode tab attached to each of the electrodes. The apparatus includes: a cutter disposed at one side of the electrode tab to move toward the electrode tab so as to cut a portion to be cut of the electrode tab; and a fixing die provided to cross the cutter at the other side of the electrode tab. The cutter includes: a pressing surface configured to press the electrode tab; and an inclined surface provided at a position corresponding to the portion to be cut and inclinedly extending away from the electrode tab from an end of the pressing surface.
Resumen de: US20260031395A1
An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte are disclosed. The electrolyte may include a non-aqueous (e.g., water-insoluble) organic solvent, a lithium salt, a first additive represented by Chemical Formula 1, and a second additive represented by Chemical Formula 2. A more detailed description of the first additive and the second additive is provided in the present disclosure.
Resumen de: WO2026023669A1
Provided is a battery including a positive electrode, a negative electrode disposed apart from the positive electrode, a separator sandwiched between the positive electrode and the negative electrode, and an electrolyte. The electrolyte may contain a nitrate, alkaline earth metal salt, or alkali metal salt at least including lithium nitrate and being in the amount of 0.1% to 50% with respect to the total mass of the electrolyte, and 1% to 40% of hydrofluoroether with respect to the total mass of the electrolyte. The electrolyte may contain 10% to 70% of fluoroethylene carbonate with respect to the total mass of the electrolyte.
Resumen de: WO2026023997A1
According to exemplary embodiments, a battery pack is provided. The battery pack comprises: a pack housing including a base plate and a sidewall; a plurality of battery cell assemblies on the base plate; a lead coupled to the sidewall of the pack housing; and a foaming device configured to discharge a foamed layer into an inner space defined by the pack housing and the lead.
Resumen de: WO2026024026A1
A battery cell according to the present invention comprises: an electrode assembly in which a cathode, an anode, and a separator are stacked in the stacking direction; a cell case for accommodating the electrode assembly; and an insulation member which is disposed on one side other than two side surfaces of the electrode assembly of the cell case in the stacking direction, and which includes an insulation material, wherein the cell case includes a contact unit which is formed at a position different from the position at which the insulation member is disposed, and with which a cooling member is in contact.
Nº publicación: WO2026024047A1 29/01/2026
Solicitante:
SAMSUNG ELECTRONICS CO LTD [KR]
\uC0BC\uC131\uC804\uC790 \uC8FC\uC2DD\uD68C\uC0AC
Resumen de: WO2026024047A1
According to an embodiment of the present invention, an electronic device comprises: a housing forming the exterior; and a battery disposed inside the housing. The battery includes: a battery housing having an opening; a gasket disposed in the opening of the battery housing and defining an inner space with the battery housing; and an electrode assembly disposed in the inner space. The electrode assembly includes: first electrode plates and second electrode plates, which are sequentially arranged in alternation with each other and have different polarities; first electrode tabs extending from the first electrode plates; second electrode tabs extending from the second electrode plates; a first electrode lead electrically connected to the first electrode tabs; and a second electrode lead electrically connected to the second electrode tabs. The first electrode lead and the second electrode lead may pass through the gasket and extend outward from the inner space of the battery housing.
BOPI
Sede Electrónica
