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1863
resultados
Última actualización
28/06/2025 [08:26:00]
Resultados 250 a 275 de 1863
Resumen de: US2025210748A1
An electrode assembly includes: an electrode stack in which an electrode and a separator are alternately interposed; and an electrode lead extending from the electrode. A thickness of the electrode stack is 15 times or more a thickness of the electrode lead so as to prevent or suppress heat propagation to an adjacent secondary battery.
Resumen de: US2025210695A1
An anode-solid electrolyte sub-assembly for a solid secondary battery, and a method of manufacturing the same, wherein the anode-solid electrolyte sub-assembly includes an anode current collector, a mixed ionic-electronic conductor (MIEC) structure, the mixed ionic-electronic conductor structure between the anode current collector and a solid electrolyte. The mixed ionic-electronic conductor has a plurality of open portions that extend in a direction from the anode current collect towards the solid electrolyte and at least one end of an open portion of plurality of open portions is open. A plurality of lithiophilic metal material particles are disposed on the mixed ionic-electronic conductor structure, an interlayer is disposed between the mixed ionic-electronic conductor structure on which the lithiophilic metal material particles are disposed and the solid electrolyte. The interlayer includes an interlayer material comprising a carbon-containing anode compound; lithium; a mixture of a carbon-containing anode compound and at least one of a second metal or a metalloid; a composite of a carbon-containing anode compound and at least one of a second metal or a metalloid; or a combination thereof.
Resumen de: US2025210689A1
A lithium secondary battery includes: a positive electrode; a negative electrode; an electrolyte; and a separator. The positive electrode includes first and second positive electrode active materials having different average particle diameters (D50). The average particle diameter (D50) of the first positive electrode active material is larger than that of the second positive electrode active material. The first and second positive electrode active materials include single-particle type particles. The negative electrode includes a silicon-based negative electrode active material, and the lithium secondary battery has an IRF value of about 1 to 1.4, defined by Equation 1IRF=RpRn,wherein Rn refers to an interfacial resistance of the negative electrode measured after 100 cycles of charge/discharge are performed, and Rp refers to an interfacial resistance of the positive electrode measured after 100 cycles of charge/discharge are performed.
Resumen de: US2025210704A1
New block polymers are described, as well as processes for preparing them using a ring-opening copolymerisation technique. Also described are electrolytes, cathodes and batteries comprising the polymers.
Resumen de: US2025210746A1
An electrical system comprises inverters, electrical circuitry, and a ECU. The electrical circuit includes a battery and a capacitor. When the temperature rise start condition for starting the temperature rise of the battery is satisfied, ECU performs frequency control for controlling the inverter so that the current frequency of the alternating current generated by the inverter becomes a set frequency related to the resonant frequency of the electric circuitry. ECU performs an update process of updating the set frequency so that the ripple of the current flowing through the electric circuitry increases when the frequency control is executed.
Resumen de: US2025210832A1
A method of manufacturing a power storage device, which has a battery, injection ports, a tubular member surrounding the injection ports, and a laminate film, includes a step of causing the laminate film to contact the tubular member and welding by heat pressing. At the tubular member, a first region including a surface that contacts the laminate film is structured by resin L, and a second region that is disposed further toward the injection ports side than the first region and that contacts the first region is structured by resin H. At the laminate film, a third region including a surface that contacts the tubular member is structured by resin lam. Melting points Tm or glass transition temperatures Tg of the resin L and the resin lam are lower than that of the resin H. A temperature of the heat pressing is greater than or equal to the melting point Tm or the glass transition temperature Tg of the resin L and the resin lam, and is less than the melting point Tm or the glass transition temperature Tg of the resin H.
Resumen de: US2025210798A1
A lithium secondary battery may include a battery can, an electrode assembly and an electrolyte received in the battery can, and a cap plate to seal the battery can. The battery can includes a first end portion and a second end portion opposite the first end portion. The lithium secondary battery is configured so at least a portion of the electrode assembly is ejected through the first end portion of the battery can when an internal pressure within the battery can is 21 kgf/cm2 or more. After the portion of the electrode assembly is ejected through the first end portion, a distance from an end portion of the electrode assembly located farthest away from the battery can to the second end portion of the battery can is greater than or equal to 1.25 times a distance between the first end portion and the second end portion of the battery can.
Resumen de: US2025210833A1
Production of an insufficiently sealed product is suppressed by sealing by welding a sealing material to a filling port of a secondary battery. A transparent resin film is used as the sealing material.
Resumen de: US2025210828A1
An embodiment of the present disclosure may provide a battery cell including an electrode assembly in which a first electrode including a first uncoated part, a second electrode including a second uncoated part, and a separator disposed between the first electrode and the second electrode are wound in a roll shape, and a cylindrical case including an opening with one side open, and configured to accommodate the electrode assembly inside through the opening, where the first uncoated part and the second uncoated part are disposed in a direction of the opening.
Resumen de: US2025210802A1
An electrical storage system (ESS) comprising a plurality of battery packs arranged side-by-side, each of the battery packs being spaced from an adjacent battery pack such that the side surfaces of the adjacent battery packs form inter-battery pack gas channels and wherein each of the battery pack is provided with a side gas vent opening to one of the inter-battery pack gas channels.
Resumen de: US2025210799A1
The present disclosure relates to a battery including a battery can, an electrode assembly and an electrolyte received in the battery can, and a cap plate assembly to seal the battery can, a battery pack and a vehicle including the same. The battery can has a first end and a second end opposite to each other. When the electrode assembly is ejected through the first end of the battery can by an internal pressure, a distance from the end of the electrode assembly farthest away from the battery can to the second end of the battery can is 1.25 times or more as much as a distance between the first end portion and the second end portion of the battery can; and the ejected portion of the electrode assembly has a mass that is at least 25% of the total mass of the electrode assembly before the ejection.
Resumen de: US2025210743A1
Heating a battery pack for a power tool may be required to accelerate a charging time, especially in cold environments. Not all battery packs of a set of battery packs will heat at the same rate because of differences due to physical (e.g., mass) and electrical (e.g., AC resistance) differences. The disclosed approach includes determining an amplitude of an AC heating current based on characteristics of the battery pack attached to a charger so that all the battery packs in the set of battery packs may be heated at roughly the same rate regardless of their individual characteristics. The disclosure describes how this approach may be implemented in a variety of different charging scenarios.
Resumen de: US2025210745A1
The disclosure relates to heat-transfer for a battery. The battery can comprise at least one battery unit. The heat-transfer system can comprise a first heat-conducting element for thermal connection to the at least one battery unit, a second heat-conducting element for thermal connection to a battery external environment, and an actuator configured to alter a position of the first heat-conducting element between a first position for connecting the first heat-conducting element to at least one of the second heat-conducting element and the at least one battery unit and a second position for disconnecting the first heat-conducting element from at least one of the second heat-conducting element and the at least one battery unit. The first heat-conducting element can be configured to receive heat from the at least one battery unit and transfer the heat to the second heat-conducting element in the first position.
Resumen de: US2025210763A1
A cylindrical battery includes: an electrode body in which a positive electrode and a negative electrode are wound with a separator therebetween; a bottomed cylindrical external can that accommodates the electrode body; and a sealing body that is fixed by staking at an opening portion of the external can via a gasket. The external can includes an annular shoulder portion that presses the gasket in the axial direction. A plurality of grooves that are positioned at intervals in the circumferential direction and extend in substantially radial directions are provided on the inner surface of the shoulder portion.
Resumen de: US2025210749A1
The disclosure relates to the field of batteries, and specifically provides a battery pack and an electric vehicle. The battery pack has a casing including a lower case base plate and a beam structure, a cell stack formed by stacking multiple pouch cells in the casing, an electrode tabs extending from an end of the pouch battery cell toward the beam structure along a length direction of the pouch battery cell, a thermally conductive structural adhesive disposed between the battery cell stack and the lower case base plate, and a foaming adhesive filling a space between the electrode tabs and the beam structure. The solution can construct a pouch CTP battery pack based on the pouch cells, which has a good protective effect on the battery cell stack formed by stacking pouch battery cells and is easy to assemble, so as to improve the overall stability of the battery pack.
Resumen de: US2025210725A1
The invention relates to a battery comprising at least two assemblies (16), each of the two assemblies (16) comprising a plurality of electrochemical cells (18) and a central plate (20), the electrochemical cells (18) of each of the two assemblies (16) comprising a first group (34) of electrochemical cells and a second group (36) of electrochemical cells which are separated from one another in the transverse direction (Y) by the central plate (20),Each of the assemblies (16) is able to move between a use configuration in which the first group (34) and the second group (36) of electrochemical cells are electrically connected to one another and a maintenance configuration in which the first group (34) and the second group (36) of electrochemical cells are electrically disconnected from one another, each of the first group (34) and of the second group (36) of electrochemical cells having a voltage of below 60 V.
Resumen de: US2025210723A1
A metal-hydrogen battery is presented. The battery includes a bridgeless CPV superstack having a number K of units, each unit including a first layer and a second layer, wherein the first layer includes a number L/2 of intermediate anode-cathodes, and wherein the second layer includes an end anode and an end cathode separated by L/2−1 intermediate anode-cathodes; a pressure vessel that encloses the bridgeless CPV superstack; and electrolyte within the pressure vessel. A bridgeless CPV superstack includes K units, each unit including a first layer and a second layer, wherein the first layer includes a number L/2 of intermediate anode-cathodes, and wherein the second layer includes an end anode and an end cathode separated by L/2−1 intermediate anode-cathode.
Resumen de: US2025210739A1
A battery housing structure capable of more effectively detecting expansion of a battery is provided.A battery housing structure according to the present invention includes a housing body of a battery, and the housing body has different ease of deformation with respect to expansion of the battery on a first main surface side of the battery and on a second main surface side of the battery.
Resumen de: US2025210688A1
An apparatus for manufacturing an electrode assembly formed in a stack structure of an electrode plate and a separator includes a separator supplier configured to supply the separator, a folder that moves with respect to a stack table to fold the separator on the stack table, a guide provided on a movement path of the separator from the separator supplier to the folder to guide movement of the separator, a compensator that is movable to compensate for a change in length of the movement path of the separator, and a controller configured to control movement of the compensator based on structural parameters for a structure of the apparatus and motion parameters for a motion of the folder to compensate for the change in length of the movement path of the separator.
Resumen de: US2025210724A1
A lithium secondary battery having high energy density and excellent lifetime characteristics includes: (1) a positive electrode containing a positive electrode active material in a single particle form having a D50 of 5.5 μm to 8 μm; (2) a negative electrode containing a first negative electrode active material having a Si—C composite; and (3) an electrolyte. The irreversible capacity per unit area of the negative electrode is smaller than an irreversible capacity per unit area of the positive electrode.
Resumen de: US2025210712A1
Disclosed are an electrolyte for lithium secondary batteries and a lithium secondary battery including the same. The electrolyte for lithium secondary batteries includes: a lithium salt; a non-aqueous organic solvent; a compound represented by Formula 1 disclosed in the specification; and a compound represented by Formula 2 disclosed in the specification.
Resumen de: US2025210669A1
A polymer includes an ester polymer, and the polymer is applied to battery cells. The ester polymer is made into a sheet structure. The sheet structure undergoes dynamic frequency scanning testing at (Tm+20)° C. to obtain an elastic modulus G′-energy loss modulus G″ curve, where a slope of the elastic modulus G′-energy loss modulus G″ curve is K, 1
Resumen de: US2025210827A1
Embodiments of the present application provide a connector, a device, a battery, and a power consuming apparatus. The connector includes a male terminal and a female terminal, where the male terminal includes M first plug pins and N second plug pins, and the female terminal includes M first jacks and N second jacks, with M and N being positive integers; and when plugging of the male terminal and the female terminal is in place, the M first plug pins are respectively plugged into the M first jacks to form M first loops, and the N second plug pins are respectively plugged into the N second jacks to form N second loops, with a second conductive contact distance (L2) between each second plug pin and the corresponding second jack being smaller than a first conductive contact distance (L1) between each first plug pin and the corresponding first jack.
Resumen de: US2025211015A1
A charge control device is configured to control charging of a lithium ion battery, estimate an inflow current flowing into the lithium ion battery when a current flowing through a load stops, derive a protective charging current that is a maximum value of charging current not to cause the lithium ion battery to form lithium deposition, calculate a charging upper limit current based on the protective charging current and the inflow current, the charging upper limit current being an upper limit of current to charge the lithium ion battery, and control charging of the lithium ion battery based on a limit electric power calculated from the charging upper limit current and a voltage of the lithium ion battery.
Nº publicación: US2025210797A1 26/06/2025
Solicitante:
MURATA MFG CO LTD [JP]
MURATA MANUFACTURING CO., LTD
Resumen de: US2025210797A1
A secondary battery is provided and includes a battery element; a housing member that houses the battery element; and a safety valve attached to the housing member, in which the safety valve includes at least a configuration in which a safety cover including a protrusion at a center, a disk holder including an opening at a center, a stripper disk including a cavity at a center, and a sub disk that joins to the protrusion extending through the opening of the disk holder and the cavity of the stripper disk are combined in this order from relatively on an outer side to an inner side of the housing member, and the stripper disk includes a recess on a surface located on the relatively inner side of the housing member, and the recess houses the sub disk.
BOPI
Sede Electrónica
