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1058
resultados
Última actualización
22/11/2025 [07:55:00]
Resultados 775 a 800 de 1058
Resumen de: US2025349859A1
A TFE-based polymer composition for an electrochemical device binder for reducing or preventing gas generation inside an electrochemical device cell and deterioration of electrochemical device characteristics and improve the mixture sheet strength. A TFE-based polymer composition for use in an electrochemical device binder, containing: a TFE-based polymer; and at least one compound represented by formula (1) or compound represented by formula (2), the tetrafluoroethylene-based polymer composition being substantially free from water:wherein m is 4 to 20; M1 is H, a metal atom, NR54 (where R5s are optionally the same or different from each other and each represent H or a C1-C10 organic group), or the like; and p is 1 or 2, andwherein n is 4 to 20; M2 is H, a metal atom, NR54 (where R5 is as defined above), or the like; and q is 1 or 2.
Resumen de: US2025349856A1
Provided are a silicon-carbon battery cell for a power tool, a battery pack, an energy storage device, a power tool, and a charger for a battery pack. The silicon-carbon battery cell includes: a positive electrode plate; a negative electrode plate including a silicon material, a carbon material, and a binder; and an electrolyte disposed between the negative electrode plate and the positive electrode plate. The binder includes polyacrylic acid and styrene-butadiene rubber.
Resumen de: US2025349844A1
A positive electrode active material includes secondary particles in each of which primary particles are aggregated, wherein each of the secondary particles is a lithium transition metal composite oxide having a lamellar crystal structure. The lithium transition metal composite oxide includes Li, Ni, Mn, Co, and M, and a molar ratio of the Li, the Ni, the Mn, the Co, and the M is Li:Ni:Mn:Co:M=a:x:y:z:t, where the M, the a, the x, the y, the z, and the t are defined as in the scope of claims for patent. An integrated intensity ratio (I003/I104) of diffraction peaks of the secondary particle in an X-ray diffraction method is 1.05 to 1.19. A crystallite size Loos of the secondary particle is 1000 Å or more.
Resumen de: US2025349890A1
A gel electrolyte battery, comprising gel electrolytes, wherein the gel electrolytes comprise a first gel electrolyte and a second gel electrolyte, the first gel electrolyte is located in at least part of at least one side surface of at least one electrode sheet, and the second gel electrolyte is located in the direction of the first gel electrolyte distant from the electrode sheet. The electrode sheet is a positive electrode sheet or a negative electrode sheet.
Resumen de: US2025349883A1
Provided are a modified sulfide solid electrolyte containing a sulfide solid electrolyte having a BET specific surface area of 10 m2/g or more and containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom, and at least two kinds of compounds selected from the particular compounds (A) to (I) that is excellent in coating suitability in coating as a paste, and can exhibit the excellent battery capabilities efficiently, irrespective of the large specific surface area thereof, and a method of producing the same, and also an electrode mixture and a lithium ion battery using the same.
Resumen de: US2025349909A1
A battery cell includes C cathode electrodes, A anode electrodes, and S separators, where C, A, and S are integers greater than zero. Each of the S separators includes a separator layer, a first active solid coating layer arranged on the separator layer, and a protective layer.
Resumen de: US2025349910A1
A battery with a laminate has a first current collector layer, a first electrode active material layer, an electrolyte layer, and a second electrode active material layer laminated in this order, and at least one end of the laminate is in contact with a hard member, wherein tips of the first electrode active material layer, the electrolyte layer, and the second electrode active material layer are present inside the tip of the hard member, and a second surface of the hard member is in contact with the first electrode active material layer and/or between the surface of the second electrode active material layer and the first contact surface of the first current collector layer. An angle between a tangential direction at a tip of the second electrode active material layer and a surface direction of the first current collector layer is 60° or more and 120° or less.
Resumen de: US2025349917A1
A method for influencing the growth of lithium dendrites in a lithium-ion rechargeable battery having in a cell (1) a cathode (4) and opposite the latter an anode (3) consisting of lithium or having at least one surface containing lithium, an anhydrous electrolyte (5) being situated in an interspace between the cathode (4) and the anode (3) and a separator (6) permeable to lithium ions being arranged in said interspace. During an electrical charging process, longitudinal ultrasonic waves having a variable frequency are generated in the cell (1) or transmitted into the cell (1), the longitudinal direction of the ultrasonic waves in the electrolyte (5) extending transversely to the normals (16) to the anode (3) and the cathode (4), and the frequency of the ultrasonic waves being controlled such that it repeatedly passes through a frequency range.
Resumen de: WO2025234125A1
One embodiment of the present invention is a control method for a bidirectional charge/discharge device that can be connected between a battery of an electric automobile and a power system. The bidirectional charge/discharge device comprises: a battery voltage acquisition unit that acquires the voltage of the battery; a DC/DC converter that is configured to be connected to the battery and that has a switching element; an AC/DC converter that is configured to be connected to the power system and that has a switching element; a smoothing capacitor that is disposed between the AC/DC converter and the DC/DC converter; a voltage sensor that senses the voltage between the two ends of the smoothing capacitor; and a control unit that controls the AC/DC converter and the DC/DC converter. The control unit, in a standby state, performs control so that operation of the DC/DC converter is halted and the AC/DC converter operates intermittently, thereby maintaining the voltage between the two ends of the smoothing capacitor so as to be equal to or greater than the system voltage of the power system and less than the voltage of the battery.
Resumen de: WO2025234305A1
Provided is a battery management system that makes it possible to start each process after replacement of a battery without providing an operation unit for instructing starting of an authentication process or a pairing process between communication terminals. This battery management system for managing a battery that has a plurality of battery modules built in comprises: a disconnection device that is disposed on a main circuit wire that connects the battery and a load; a communication unit that is provided for each battery module, said communication unit transmitting a signal related to a state of the battery module; and a battery management unit that manages the states of the battery modules on the basis of the signals received from the communication units, wherein the battery management unit includes a detection unit that detects the electrical connection state of the main circuit wire by the disconnection device, and a determination unit that determines that at least one of authentication start conditions of the communication unit is satisfied when the detection unit indicates that the electrical connection state has changed from an interrupted state to a conductive state.
Resumen de: WO2025234320A1
A power storage element according to the present invention comprises a wound electrode body and a current collector, wherein: the current collector includes a flat plate-like electrode body connection part which extends in a first direction; the electrode body includes a body part and a tab part which is connected to the electrode body connection part; the body part includes a pair of curved parts which face each other in the first direction and an intermediate part which is provided between the pair of curved parts; the tab part protrudes from the intermediate part toward the electrode body connection part; and the electrode body connection part faces the entire region of the intermediate part in the first direction.
Resumen de: WO2025231628A1
The present application discloses a secondary battery, a manufacturing method for an electrode assembly, and an electronic device. The secondary battery comprises an electrode assembly and a first tab. The electrode assembly comprises a first electrode sheet, a second electrode sheet, and a separator provided between the first electrode sheet and the second electrode sheet. The first electrode sheet, the second electrode sheet, and the separator are stacked and wound to form a wound structure. In the winding direction of the electrode assembly, the outermost electrode sheet in the electrode assembly is the first electrode sheet, the outermost section of the first electrode sheet is partially stacked in a first direction to form an overlapping structure, and the first direction is the stacking direction of both the second electrode sheet and the separator which are adjacent to the overlapping structure. The first tab is connected to the outermost section of the first electrode sheet, and in the winding direction of the electrode assembly, the overlapping structure is located on the side of the first tab close to the winding center of the electrode assembly. The present application facilitates the reduction of the risk of damage to the first electrode sheet.
Resumen de: WO2025231840A1
A secondary battery and an electronic apparatus. The secondary battery comprises a positive electrode sheet and an electrolyte; the positive electrode sheet comprises a positive electrode current collector and a positive electrode material layer; a plurality of first protrusions are provided on the surface of the positive electrode material layer away from the positive electrode current collector; in the thickness direction of the positive electrode sheet, the average height of the plurality of first protrusions is h1
Resumen de: US2025349897A1
An electrolytic solution that enables improvement in durability of an electrochemical device, reduction of the amount of gas generated therein, and reduction of the amount of metal precipitated therein, and an electrochemical device and a secondary battery using the electrolytic solution. An electrolytic solution including at least one compound represented by the formula (1) of the disclosure (i.e., Rf1OR, wherein Rf1 is a fluorinated alkyl group having 1 to 5 carbon atoms, and R is K or Na).
Resumen de: US2025345586A1
Mechanical circulatory support systems that employ a connector cable for transmitting power and data are disclosed. A mechanical circulatory support system includes a ventricular cuff, a ventricular assist device, an external module, and a connector cable. The ventricular cuff is configured for attachment to a heart. The ventricular assist device is configured for attachment to the ventricular cuff and includes a housing, a rotor, a stator assembly, and control electronics. The external module includes an internal battery and is configured to power and control operation of the mechanical circulatory support system. Power and data are transmitted from the external module to the ventricular assist device over the connector cable. The connector cable includes two redundant pairs of electrical conductors.
Resumen de: US2025349838A1
A negative electrode for a secondary battery, including: a current collector; a first negative electrode active material layer provided on the current collector; and a second negative electrode active material layer provided on the first negative electrode active material layer, in which at least one of the first and second negative electrode active material layers includes a lithium-substituted carboxymethyl cellulose, and the second negative electrode active material layers includes a silicon-based active material, and a secondary battery including the same.
Resumen de: US2025349837A1
A positive electrode active material, a preparation method thereof, a positive electrode plate, a secondary battery, and an electric apparatus. The positive electrode active material includes: a core and a first coating layer applied on at least a portion of an outer surface of the core, the core includes a lithium-containing nickel-based transition metal oxide, and the first coating layer includes cerium element. In the lithium-containing nickel-based transition metal oxide, a molar proportion of nickel element among all elements excluding lithium element and oxygen element ranges from 50% to 100%.
Resumen de: US2025349846A1
A lithium composite transition metal oxide includes nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes two or more elements selected from the group consisting of Zr, Al, V, Co, and Mg and additional two or more elements selected from the group consisting of Ti, Y, Sr, Nb, Ba, and Ca, and the lithium composite transition metal oxide is in a form of a particle having a crystallite size of 170-300 nm.
Resumen de: US2025349829A1
A positive electrode active material particle with little deterioration is provided. A power storage device with little deterioration is provided. A highly safe power storage device is provided. The positive electrode active material particle includes a first crystal grain, a second crystal grain, and a crystal grain boundary positioned between the crystal grain and the second crystal grain; the first crystal grain and the second crystal grain include lithium, a transition metal, and oxygen; the crystal grain boundary includes magnesium and oxygen; and the positive electrode active material particle includes a region where the ratio of the atomic concentration of magnesium in the crystal grain boundary to the atomic concentration of the transition metal in first crystal grain and the second crystal grain is greater than or equal to 0.010 and less than or equal to 0.50.
Resumen de: US2025349847A1
A cathode electrode for a secondary battery, a vehicle battery including the cathode electrode, and a method of forming a cathode for a secondary battery. The cathode electrode includes a cathode disposed on a surface of a cathode current collector, wherein the cathode includes an active material including at least one of lithium iron phosphate and lithium manganese iron phosphate, a binder including polyvinylidene fluoride and polytetrafluoroethylene and a conductive filler.
Resumen de: US2025349905A1
A preparation method of a thermally composited laminated cell and a thermally composited laminated cell are provided. The preparation method includes: preparing a plurality of first electrode plate groups and a plurality of second electrode plate groups, each of the first electrode plate groups includes a plurality of first units, each of the second electrode plate groups includes a plurality of second units. An outermost side of the first unit is provided with a negative electrode plate, and an outermost side of the second unit is provided with a positive electrode plate. Providing a first separator, and assembling the plurality of first electrode plate groups, the plurality of second electrode plate groups and the first separator to prepare a composite cell group. Cutting the composite cell group to prepare a plurality of thermally composited laminated cells.
Resumen de: US2025349887A1
A method for producing a sulfide solid electrolyte powder includes: mixing a raw material to obtain a raw material mixture; synthesizing at least one powder of a sulfide powder and a sulfide precursor powder from the raw material mixture; and subjecting the powder to a heat treatment. The heat treatment is performed in an atmosphere having a SO2 concentration of 1 ppm by volume to 1000 ppm by volume.
Resumen de: US2025349888A1
A method for producing a sulfide solid electrolyte powder includes: mixing raw materials to obtain a raw material mixture; synthesizing at least one powder of a sulfide powder and a sulfide precursor powder from the raw material mixture; heat-treating the powder in a heating area to obtain a sulfide solid electrolyte powder; transferring the sulfide solid electrolyte powder to a cooling area; and cooling the sulfide solid electrolyte powder while circulating an inert gas in the cooling area. The heating area and the cooling area are separated.
Resumen de: US2025349892A1
Certain aspects of the present disclosure may include a battery including a cathode including a fluorinated carbon material and manganese oxide, an anode including one or more of a lithium metal or a lithium alloy, and a non-aqueous electrolyte including: an organic solvent, one or more lithium salts including lithium perchlorate, and an additive material having lithium nitrate and tris-trimethyl silyl phosphite.
Nº publicación: US2025349884A1 13/11/2025
Solicitante:
BELENOS CLEAN POWER HOLDING AG [CH]
Belenos Clean Power Holding AG
Resumen de: US2025349884A1
A composite solid electrolyte mixture including a the lithium garnet-type structure material and LiBSCl, wherein LiBSCl comprises Li3BO3, Li2SO4 and LiCl. Also, a composite solid electrolyte obtained from the mixture, a solid state battery including the composite solid electrolyte, and methods of producing the composite solid electrolyte and the solid state battery.
BOPI
Sede Electrónica
