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1850
resultados
Última actualización
14/03/2025 [07:23:00]
Resultados 50 a 75 de 1850
Resumen de: US2025087674A1
The present disclosure relates to a negative electrode active material, a negative electrode including the same, a secondary battery including the negative electrode, and a method for manufacturing a negative electrode active material. The negative electrode active material includes a silicon-based particle including SiOx (0<x<2) and a Li compound, a carbon layer provided on at least a portion of a surface of the silicon-based particle, and a surface layer provided on at least a portion of a surface of the carbon layer and comprising Li, Al and P, wherein an oxide comprising one or more selected from the group consisting of Zr, B, Al, Zn, W and Ti is provided at an interface between the silicon-based particle and the carbon layer.
Resumen de: US2025087857A1
The present secondary battery includes: a first spacer disposed to face a first electrode tab; a second spacer disposed to face the second electrode tab; and an insulating sheet disposed to cover the electrode assembly, the first spacer, and the second spacer, wherein the insulating sheet and the first spacer are connected to each other, and the insulating sheet and the second spacer are connected to each other.
Resumen de: US2025087783A1
A thermal fin for a battery apparatus is configured to prevent thermal propagation between adjacent battery pack subassemblies. The thermal fin comprising a first and/or a second contact unit in facing contact with a first and a second battery pack subassembly. A supporting unit is sandwiched between the first and the second contact unit. The thermal fin extends in a fin plane, has a fin length in cross section along a longitudinal axis and a fin thickness. The thermal resistance within the fin plane is lower than the thermal resistance in a direction normal to the fin plane, such that the thermal fin performs a thermal management function and a thermal safety function of the battery apparatus.
Resumen de: US2025087671A1
The present disclosure relates to an anode active material for a lithium secondary battery, and a preparation method therefor. The anode active material of the present disclosure comprises silicon, lithium silicate, and a transition metal-silicon alloy, and thus can significantly improve lifespan properties while maintaining initial efficiency at an excellent level.
Resumen de: US2025088306A1
Techniques to improve the immunity of wireless battery systems by transmitting heavily-coded signals, e.g., using multiple chips of a sequence for each bit of information, to trade data rate for interference or jamming immunity as a response once a noisy environment is identified. The techniques provide the system with a noise immunity operating mode (or high-immunity transmit and receive mode) that can improve resilience to interference or jamming by reducing the data rate. One option for reducing the data rate is by slowing down the transmission bit rate to reduce the occupied transmit bandwidth to minimize the probability of collisions with interfering signals. Another option is though digital coding methods using Forward Error Correction such as Convolutional Coding, Reed-Solomon Coding and Turbo coding. A third option is with RF spread spectrum techniques such as Direct Sequence Spread Spectrum (DSSS) or Frequency Hopped Spread Spectrum (FHSS).
Resumen de: US2025088003A1
A method for controlling a system including a heat pump, a space heater, a space cooler, a thermal battery, an electrical battery and a grid access system, the method including turning on at least one of discharging of the thermal battery and discharging of the electric battery, if a hot water demand exists; turning on at least one of the heat pump, charging of the thermal battery, charging of the electric battery and discharging of the electric battery, if a space heating demand exists; turning on charging of the thermal battery, if a space cooling demand exists; and backfeeding electricity from the electric battery to a grid through the grid access system, if electricity sale is desired.
Resumen de: US2025088020A1
Systems and method for controlling a charge mode for a battery charger. One system includes a first microcontroller unit configured to charge a first battery pack via a first power source, a second microcontroller unit configured to charge a second battery pack via a second power source, the second power source electrically isolated from the first power source, an opto-isolation circuit, and an input mechanism. The first microcontroller unit configured to receive a signal output by the input mechanism representing a selected charge mode, control charging of the first battery pack via the first power source based on the selected charge mode, and communicate the selected charge mode to the second microcontroller unit via the opto-isolation circuit.
Resumen de: US2025087704A1
Systems and methods for high speed formation of cells for configuring anisotropic expansion of silicon-dominant anodes may include a cathode, an electrolyte, and an anode, where the anode may include a current collector and an active material on the current collector. An expansion of the anode may be configured by a charge rate during formation of the battery. The expansion of the anode may be less than 1.5% in lateral dimensions of the anode for higher charge rates during formation with the active material being more than 50% silicon, where the higher charge rate may be 1 C or higher, and perpendicular expansion may be higher for charge rates below 1 C during formation. The expansion of the anode may be lower in lateral dimensions for thicker current collectors, which may be 10 μm or thicker, and may be lower in lateral dimensions for more rigid materials for the current collector.
Resumen de: US2025087777A1
A shredder for minimizing aggregation of whole batteries can include a shaft defining a longitudinal axis and a latitudinal axis. The shredder can include a plurality of teeth disposed on knives which fit on said shaft at an angle to the latitudinal axis selected from 0 degrees and 45 degrees. The teeth can have a first proximal end integrally molded to the shaft and a second free distal end.
Resumen de: US2025087776A1
In one aspect, a method for detecting lithium polymer battery swell due to exposure to heat or battery aging comprising: integrating an integrated force sensor with a lithium polymer battery; monitoring a lithium polymer battery swell of the lithium polymer battery with the integrated force sensor; with the integrated force sensor, detecting the lithium polymer battery swell beyond a specific swelling threshold; and determining that the lithium polymer battery swell due to exposure to heat or battery aging.
Resumen de: US2025087825A1
An apparatus for managing gases produced by batteries includes a battery case housing multiple battery cells, each with a vent for releasing pressurized gas. A thermal barrier layer is positioned beside the cells with sacrificial regions matching the vent count. On the other side of the barrier, a vent gas conduit collects gas from any venting cell through the sacrificial region, then directs it outside the battery case into the surrounding environment.
Resumen de: US2025087775A1
Disclosed are a flow battery degassing device, a degassing method, a system, and a storage medium. The flow battery includes a liquid tank. The flow battery degassing device includes a degassing tank, a degassing pump, a liquid outlet pipe, and a liquid inlet pipe. The liquid outlet pipe is configured to enable an electrolyte in the liquid tank to flow into the degassing tank. The liquid inlet pipe is configured to enable the electrolyte in the degassing tank to flow into the liquid tank. The degassing pump is provided on the liquid inlet pipe and configured to form a vacuum environment in the degassing tank.
Resumen de: US2025087699A1
An all-solid-state battery is provided. The all-solid-state battery comprises a positive electrode, a negative electrode and a solid electrolyte membrane between the positive electrode and the negative electrode, and further comprises a first composite carbon layer and a second composite carbon layer between the negative electrode and the solid electrolyte membrane.
Resumen de: US2025087787A1
A battery pack according to one embodiment of the present disclosure includes: a housing in which at least one battery cell or battery module is built, a heat exchange member provided inside the housing to cool the battery cell or the battery module, a refrigerant inflow port and a refrigerant outflow port connected to the heat exchange member, and a rapid cooling member installed in the refrigerant inflow port.
Resumen de: US2025087774A1
The disclosed technology relates to battery packs having battery cells of different designs or capacities with an imbalance in the charging and/or discharging current supplied to and provided by each jelly roll due to differences in capacity specific impedance between the battery cells of a battery pack. The battery pack includes at least a first and second battery cell connected in parallel, with a thickness of an active layer and/or current collector of a battery cell having an altered thickness to reduce an impedance of the battery cell.
Resumen de: US2025087673A1
A positive active material for a lithium secondary battery according to an exemplary embodiment includes a lithium composite transition metal oxide and a surface layer formed on a particle surface of the lithium composite transition metal oxide, and a content of nickel (Ni) in the lithium composite transition metal oxide. is more than 0.85 mol, the surface layer contains cobalt (Co) and aluminum (Al), and in the surface layer, the distribution of the cobalt (Co) and aluminum (Al) components have different concentration gradients.
Resumen de: US2025087706A1
An all-solid-state secondary battery includes: a positive electrode layer including a positive electrode active material layer, and a positive electrode current collector; a negative electrode layer including a negative electrode current collector, and a negative electrode active material layer; a solid electrolyte layer; and an elastomeric member including an elastomer and disposed inside the negative electrode current collector or the positive electrode current collector, wherein the negative electrode current collector and the negative electrode active material layer are disposed side by side in a thickness direction of the negative electrode layer, the positive electrode current collector and the positive electrode active material layer are disposed side by side in a thickness direction of the positive electrode layer, and the negative electrode current collector or the positive electrode current collector surrounds an outer surface of the elastomeric member.
Resumen de: US2025087705A1
The present invention relates to a current collector for a secondary battery and a method of preparing the same, and more specifically, comprises a conductive substrate comprising a first metal; and a coating layer coated on a surface of the conductive substrate. The coating layer comprises a second metal, carbon (C), phosphorus (P), and oxygen (O), and the second metal is different from the first metal, and in a result of energy dispersive spectroscopy (EDX) analysis of its surface, total atomic fraction of the second metal, the carbon (C), the phosphorus (P) and the oxygen (O) is 10 at % to 60 at %.
Resumen de: US2025087702A1
A battery includes an electrolyte, a metal anode and a cathode. The metal anode includes a porous material disposed thereon to protect the metal anode. The porous material has a zeta potential with a magnitude of at least above 15 mV in the electrolyte. The porous material can include a cross-linked polymer having segments with polar functional groups. Examples of polar functional groups include, but are not limited to, those comprising one or more among O, N, P, S, and B.
Resumen de: US2025087772A1
A cell-testing apparatus for testing one or more cells includes a cell-test enclosure that includes at least one internal vent. The cell-testing apparatus also includes an external housing that contains the cell-test enclosure and that includes at least one exhaust vent that vents to outside the external housing. During testing, the cell-test enclosure is located within the external housing so as to define at least one explosion-gas pathway from the at least one internal vent to the at least one exhaust vent. In some embodiments, the venting axis of the internal vent(s) is perpendicular to the venting axis of the exhaust vent(s). In some embodiments, the vents each comprise one or more fenestrated plates. In some embodiments, the cell-test enclosure is a drawer-type enclosure including a cabinet and a drawer that is designed and configured to receive a battery cell for testing.
Resumen de: US2025087773A1
In an embodiment, a management apparatus, managing a battery pack including a plurality of aqueous battery cells electrically connected in series, is provided. A control unit of the management apparatus performs constant-current charging of the battery pack until a voltage of the battery pack reaches a reference voltage value in response to at least an SOC difference value between a highest-SOC cell at a highest SOC and a lowest-SOC cell at a lowest SOC among the plurality of aqueous battery cells reaching a reference difference value or greater. The control unit performs constant-voltage charging of the battery pack at the reference voltage value in response to the voltage of the battery pack reaching the reference voltage value through the constant-current charging.
Resumen de: US2025087785A1
A battery pack includes a first header having a first conduit and a second header having a second conduit. The battery pack also includes an energy storage system having energy storage cells arranged between the first header and the second header. A coolant plate assembly is arranged between the first header and the second header and abuts the plurality of energy storage cells. The coolant plate assembly includes a coolant channel having a first end fluidically connected to the first conduit, a second end fluidically connected to the second conduit, and an intermediate portion defining a flow path. The coolant plate assembly also includes a first planar section having a first surface facing the energy storage cells and a second surface having protrusions extending into the coolant channel.
Resumen de: US2025087822A1
A battery cell of the present disclosure includes an electrode assembly including a cathode, an anode, and a separator; an exterior material accommodating the electrode assembly therein; a notch portion recessed from an inner surface of the exterior material toward an outside and defined in the form of a groove; and a protrusion portion corresponding to the notch portion on an outer surface of the exterior material disposed in an opposite direction of the inner surface and protruding toward the outside.
Resumen de: US2025087679A1
The present disclosure relates to the technical field of secondary batteries, and in particular to a negative electrode material and a preparation method thereof and a lithium-ion battery, wherein a crest factor A of particle size distribution of the negative electrode material satisfies: 0
Nº publicación: US2025087683A1 13/03/2025
Solicitante:
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
Resumen de: US2025087683A1
The cathode composite material of the present disclosure contains a cathode active material composed of a lithium transition metal oxide having a layered crystalline structure, a binder, and a conductivity aid. The lithium transition metal oxide includes nickel, cobalt, and manganese. The binder includes polyvinylidene fluoride. The conductivity aid includes carbon nanotubes. The amount of lithium hydroxide contained in the cathode active material is 0.15% by mass or more and 0.35% by mass or less with respect to the total amount of the cathode active material.
BOPI
Sede Electrónica
