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1718
resultados
Última actualización
03/10/2025 [07:23:00]
Resultados 750 a 775 de 1718
Resumen de: US2025300449A1
A battery disconnection system includes: a main relay connected between a battery and a load; a pre-charge relay and a pre-charge resistor connected in parallel to the main relay and connected in series; a current sensor that measures a current of the battery; a pyrotechnic disconnection device that cuts off the current of the battery; a voltage measurement unit that measures a voltage of the pre-charge resistor; and a control circuit. The control circuit controls the pyrotechnic disconnection device based on a measured value of the current sensor when the main relay is turned on, and detects a failure of the current sensor based on a measured value of the voltage measurement unit when the main relay is turned off and the pre-charge relay is turned on.
Resumen de: US2025300476A1
The power storage device includes a plurality of kinds of secondary batteries and a control device that determines a discharge order of the secondary batteries. When the value indicating the storage state of the entire secondary battery becomes equal to or smaller than the threshold value, the control device preferentially discharges the low-precision battery having the relatively low estimation accuracy of the storage state, as compared with the high-precision battery having the relatively high estimation accuracy of the storage state.
Resumen de: US2025300464A1
A power converter includes: a power conversion unit configured to convert power input from a bus, output the converted power to a power element, convert power input from the power element, and output the converted power to the bus; a measurement unit configured to measure an electrical characteristic value of power input to and from the power conversion unit; a storage unit configured to store a first reference function and a second reference function; a setting unit configured to set a power conversion characteristic of the power conversion unit based on an electrical characteristic value; and a management unit configured to manage a renewable energy charge amount and manage an amount of power derived from renewable energy supplied from the power element.
Resumen de: US2025300215A1
A can type battery includes a can body, an electrode laminate accommodated in the can body and constituted by a positive electrode, a negative electrode and an electrolyte layer, and a holding member disposed in a void between the can body and the electrode laminate and configured to hold the electrode laminate in the can body, and the holding member includes a hollow bead formed of a thermoplastic resin, a metal layer formed on an outer circumferential surface of the hollow bead, and a fluid contained in an internal space of the hollow beads, and is a filling member that includes a metal-coated hollow bead contained in the rubber elastic body, wherein the metal-coated hollow bead or the rubber elastic body has a second volume after heating which is greater than a first volume before heating.
Resumen de: US2025300213A1
A secondary battery includes an electrode wound body and first and second electrode current collector plates. The first and second electrode current collector plates are opposed to each other with the electrode wound body interposed therebetween in a width direction. The electrode wound body includes first and second end faces respectively facing the first and second electrode current collector plates in the width direction. The first end face is a portion of an edge part in the width direction, of a first electrode exposed region, that is bent in a state where a stacked body is wound, and includes: one or more first grooves each extending from an outer edge toward an inner edge of the electrode wound body to a point between the outer and inner edges; and a first ungrooved part lying closer to the first electrode current collector plate than the one or more first grooves.
Resumen de: US2025300161A1
A press for performing a calendering to an electrode plate, including: a main roll above and below the electrode plate configured to move along a first direction, the main roll to be rotated by a driving force, and having a width along a second direction perpendicular to the first direction; a pulley part on at least one of above or below the electrode plate, and spaced from the main roll along the first direction; a pressure belt rotatably connected to the main roll and the pulley part, and to rotate about the second direction by the driving force and press the electrode plate at a contact angle to extrude the electrode plate along the first direction; and a contact controller to control at least one of a contact area or the contact angle between the electrode plate and the pressure belt by controlling a position of the pulley part.
Resumen de: US2025300177A1
An anode active material for a lithium secondary battery according to embodiments of the present disclosure includes composite particles which comprise a silicon-containing coating formed on a surface of carbon-based particles comprising porous, wherein the composite particles have a C/SiC peak intensity ratio of 1.0 to 4.5, which is measured through X-ray diffraction analysis after performing heat treatment on the composite particles at 900° C. to 1200° C. for 6 hours to 9 hours. The anode active material for a lithium secondary battery has improved capacity characteristics, output characteristics and lifespan characteristics.
Resumen de: US2025300237A1
An electrode assembly includes a separator, a first electrode and a second electrode stacked and wound with the separator between the first electrode and the second electrode. The first electrode includes a first substrate and a first composite layer disposed on the first substrate. The first composite layer is divided into at least two regions along a length direction of the first substrate. At least two regions of the first composite layer have different active material compositions.
Resumen de: WO2025194875A1
The present application relates to the technical field of electrochemistry, and specifically discloses a sodium supplementing material and a preparation method therefor, a positive electrode sheet, a sodium ion battery, a battery pack, and an electrical device. The sodium supplementing material comprises a sodium supplementing agent NaxcyOzHw and a metal oxide catalyst, where 1≤x≤3, 1≤y≤6, 1≤z≤7, and 0≤w≤5. A first EDS test is performed on any first region on the surface of the sodium supplementing material, and the content of a metal element contained in the metal oxide catalyst is measured to be C0. A second EDS test is performed on the first region after melting, and the content of the metal element contained in the metal oxide catalyst is measured to be C1, where C1>C0.
Resumen de: WO2025195172A1
The present disclosure relates to the technical field of traction batteries. Provided are a battery pack and an electrical device. The battery pack comprises a beam frame assembly, a liquid-cooling plate and a first connecting member, wherein the battery pack has a first direction, a second direction and a third direction which are perpendicular to one another; the beam frame assembly comprises a case beam extending in the second direction, the liquid-cooling plate is connected to one side of the case beam in the third direction, a first connection hole is provided in the end of the case beam that faces the liquid cooling plate, the case beam is provided with side plates opposite to each other in the first direction, at least one of the side plates is provided with a first clearance hole penetrating in the first direction, and the first clearance hole and the first connection hole are both in communication with a mounting space of the case beam; and the first connecting member sequentially passes through the liquid-cooling plate and the first connection hole and is connected to the case beam, and a projection of a first end of the first connecting member on a plane where the side plate provided with the first clearance hole is located is located within the first clearance hole. The battery pack provided in the present disclosure can prevent the first connecting member from being improperly assembled and prevent the beam frame assembly from being squeezed, deformed and damaged
Resumen de: WO2025195163A1
A battery, comprising a positive electrode, a negative electrode, and an electrolyte. The negative electrode comprises a negative electrode active material layer and a negative electrode current collector. The negative electrode active material layer comprises a silicon-based negative electrode material. The negative electrode current collector comprises a copper foil. The tensile strength of the copper foil is ≥400 MPa. The electrolyte comprises an organic solvent, an electrolyte salt, and an additive. The additive comprises a phosphate nitrile compound. By using low-elongation high-strength copper foil for the negative electrode, volume expansion of a silicon negative electrode can be reduced and a negative electrode interface can be improved. The phosphate nitrile compound is used as the electrolyte to improve a positive electrode interface, thereby improving the high-temperature cycling stability of the battery. The phosphate nitrile compound can reduce the harm to burr copper, slightly corrode copper foil, and can significantly passivate burr copper, thereby reducing puncturing of a diaphragm, and improving self-discharge performance of the battery.
Resumen de: US2025300333A1
A battery pack includes: a battery cell including an electrode assembly, and an exterior material having a room portion accommodating the electrode assembly therein and a terrace portion from which an electrode tab electrically connected to the electrode assembly protrudes; a protection circuit module electrically connected to the battery cell and seated on the terrace portion; and an insulating portion between the protection circuit module and the terrace portion and between the room portion and the protection circuit module.
Resumen de: US2025300326A1
A busbar holder and a battery module are disclosed. A busbar holder includes a holder plate which supports a plurality of busbars electrically connecting a plurality of battery cells and a length adjuster supported by the holder plate and supporting a flexible circuit part configured to transmit an electric signal generated by measuring a state of the battery cells such that the flexible circuit part extends along a bent path.
Resumen de: US2025300335A1
A secondary battery includes: an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a case accommodating the electrode assembly; a positive electrode current collector in the case and electrically connected to the first electrode plate; a rivet terminal having one side connected to the positive electrode current collector and another side extending to an outside of the case; an inner insulating part between the positive electrode current collector and the case to block an electrical connection between the positive electrode current collector and the case; and a distance-maintaining member between the inner insulating part and the positive electrode current collector to maintain a distance between the inner insulating part and the positive electrode current collector.
Resumen de: US2025300334A1
A battery module including banks connected in parallel or in series to each other, each of the banks including battery cells electrically connected in parallel to each other, a sensing tab configured to measure a voltage of each of the battery cells in each of the banks, and a high-voltage bus bar configured to make an electrical connection to another battery module. The high-voltage bus bar includes an insulating band including a synthetic resin that is an electrical nonconductor configured to electrically insulate the high-voltage bus bar from the sensing tab.
Resumen de: US2025300325A1
A battery pack may include first, second, third, and fourth welding portions formed on each of a plurality of battery cell surfaces, wherein each of the first, second, third, and fourth welding portions may include first and second curved edges facing each other and first and second straight edges connecting the first and second curved edges to each other, the first and second welding portions may face each other in a diagonal direction, and the third and fourth welding portions may face each other in a diagonal direction between the first and second welding portions.
Resumen de: US2025300328A1
A cylinder type rechargeable battery of the present disclosure includes: an electrode assembly; a case comprising a body portion and an inlet portion extending into the body portion and having a portion shaped as a plane, the case accommodating the electrode assembly; and a negative electrode current collecting plate comprising a base portion comprising a portion connected to the electrode assembly and a contact portion extending from an edge of the base portion toward the inlet portion and contacting the portion shaped as the plane of an inner surface of the case, the negative electrode current collecting plate being electrically connected to the electrode assembly.
Resumen de: US2025300224A1
A non-aqueous electrolyte for a lithium secondary battery, which includes an organic solvent, a lithium salt, a first additive which is a compound represented by Formula 1, a second additive which is lithium tetrafluoroborate, and a third additive including a saturated nitrile-based compound and an unsaturated nitrile-based compound, wherein the lithium salt is different from the second additive, and a lithium secondary battery including the non-aqueous electrolyte are described herein:wherein R1 and R2 are described herein.
Resumen de: US2025300162A1
Disclosed are an apparatus and method for manufacturing an electrode and a secondary battery including the electrode. The electrode manufacturing apparatus includes a press roll having a surface roughness Ra of 0.25 μm or more, with the press roll being configured to roll an electrode sheet.
Resumen de: US2025300186A1
In general, according to an embodiment, a secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte is provided. The positive electrode includes a positive electrode active material-containing layer containing sulfur atoms. The nonaqueous electrolyte contains a sultone compound and a cyclic carbonate. In gas chromatography mass spectrometry of the nonaqueous electrolyte, in a total ion chromatogram, a ratio B/A of an area B to an area A is in a range of 0 or more and 0.000944 or less. Expression (1) below is satisfied.1×10-6≤E/M≤9×10-4Expression(1)In Expression (1), M denotes a mass (g/m3) of the sulfur atoms per unit volume of the positive electrode active material-containing layer. E denotes a concentration (mol/L) of the sultone compound in the nonaqueous electrolyte.
Resumen de: US2025300185A1
A composite active material of the present invention includes an active material and a surface portion located on the surface of the active material and containing a sulfur-containing compound. The active material contains a complex oxide containing a lithium (Li) element, a manganese (Mn) element, and an oxygen (O) element and having a spinel-type crystal structure. The active material preferably contains an element M1 (e.g., nickel) and an element M2 (e.g., titanium and aluminum). The complex oxide is also preferably represented by Li1+x(M1yM2zMn2−x−y−z)O4−δ, where 0≤x≤0.20, 0.20≤y≤1.20, 0≤z≤0.5, and 0≤δ≤0.2.
Resumen de: US2025300225A1
The present disclosure relates to a non-aqueous electrolyte including lithium salts, an organic solvent, and an additive including a first additive and a second additive. Each of the first additive and the second additive includes a compound represented by a specific Formula.
Resumen de: US2025300170A1
Provided is a technology to reduce a resistance increase rate while suppressing increase in an electrode plate expansion rate after a charge-discharge cycle of an electricity storage device having a negative electrode containing Si. According to the technology disclosed herein, an electricity storage device including a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector is disclosed. The negative electrode active material layer includes, as a negative electrode active material particle, a Si-containing particle that is a composite particle of a graphite substrate having a void and silicon disposed within the void of the graphite substrate. The hardness of the Si-containing particle contained in at least one of layers, into which the negative electrode active material layer is partitioned in a thickness direction thereof, is lower than a hardness of the Si-containing particle contained in the other layer.
Resumen de: WO2025194811A1
The present application applies to the technical field of energy storage. Provided are an energy storage system (100) and an energy storage power station. The energy storage power station comprises the energy storage system (100). The energy storage system (100) comprises a first treating apparatus (20) and a plurality of energy storage units (10), wherein the first treating apparatus (20) is connected to the plurality of energy storage units (10), and is used for receiving exhaust gases discharged from the plurality of energy storage units (10) and removing combustible components from the exhaust gases. By connecting the first treating apparatus (20) to the plurality of energy storage units (10), the first treating apparatus (20) can receive exhaust gases generated during thermal runaway of the plurality of energy storage units (10), and remove combustible components from the exhaust gases to obtain low-harm gases; that is, the first treating apparatus (20) can treat exhaust gases from a plurality of energy storage units (10). Such an arrangement can reduce the cost of the energy storage system (100) and improve the economic efficiency of the energy storage system (100).
Nº publicación: US2025296851A1 25/09/2025
Solicitante:
TANAKA CHEMICAL CORP [JP]
TANAKA CHEMICAL CORPORATION
Resumen de: US2025296851A1
A metal composite compound is provided with which a lithium secondary battery having high initial charge and discharge efficiency can be produced. A metal composite compound containing at least Ni, in which in the metal composite compound, when in a differential pore volume distribution determined by a Barrett-Joyner-Halenda method from a nitrogen gas adsorption isotherm, an integrated area of a region where a pore diameter is 1 nm or more and 50 nm or less is A, and an integrated area of a region where the pore diameter is more than 50 nm and 200 nm or less is B, A/B is 0.05 or more and less than 1.5.
BOPI
Sede Electrónica
