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1668
resultados
Última actualización
16/05/2025 [07:20:00]
Resultados 1125 a 1150 de 1668
Resumen de: US2025140794A1
Disclosed are a positive electrode active material, a positive electrode including the same, and a rechargeable lithium battery, the positive electrode active material includes a first positive electrode active material including a layered lithium nickel-manganese-based composite oxide and a second positive electrode active material including a lithium-manganese rich composite oxide in which a molar ratio of lithium to a total metal excluding lithium is about 1.1 to about 3 and a manganese content is greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the lithium-manganese rich composite oxide.
Resumen de: US2025140810A1
A positive electrode active material particle according to one aspect of the present invention may include a lithium composite oxide particle and a coating material including a coating element, in which the lithium composite oxide particle is a secondary particle formed by aggregation of two or more primary particles, the coating material is included on a surface of the secondary particle, the coating material is included in a grain boundary between the primary particles, calcium (Ca) is included in the positive electrode active material particle, and a calcium (Ca) content X included in the positive electrode active material is 0.003 mol %≤X≤0.03 mol %.
Resumen de: US2025140436A1
A power storage device with high output is provided, in which the specific surface area is increased while keeping the easy-to-handle particle size of its active material. The power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte. The negative electrode active material layer includes a negative electrode active material which is a particle in which a plurality of slices of graphite is overlapped with each other with a gap therebetween. It is preferable that the grain diameter of the particle be 1 μm to 50 μm. Further, it is preferable that the electrolyte be in contact with the gap between the slices of graphite.
Resumen de: US2025141043A1
The composite diaphragm for a zinc secondary battery, including: a base diaphragm and a conductive film for the zinc secondary battery, the conductive film being connected to one end of the base diaphragm. The conductive film includes a porous polymer film, and pores of the porous polymer film are filled with conductive compositions, the conductive compositions including 1-10 parts by weight of a conductive agent and 0.1-1 part by weight of an additive. The conductive agent includes at least one of graphite, conductive carbon black, acetylene black, or a graphene carbon nanotube; and the additive includes at least one of a tin powder, a tin dioxide powder, a bismuth powder, a bismuth oxide powder, an indium powder, an indium oxide powder, a lead powder, a lead oxide powder, a cadmium powder, or a cadmium oxide powder.
Resumen de: US2025141051A1
A secondary battery includes a positive plate, a negative plate, a porous separator, and a non-aqueous electrolyte. In the secondary battery, lithium metal deposits on the negative plate during charging, and lithium metal dissolves in the non-aqueous electrolyte during discharge. The secondary battery includes: a spacer interposed between at least one of electrode plates of the negative plate and the positive plate and the separator to form a space between the electrode plate and the separator; and a low porosity portion that has a smaller porosity than the separator and that is fitted into the separator in an area where the separator and the spacer overlap when viewed from a laminating direction of the separator and the electrode plate.
Resumen de: US2025141042A1
Described herein is a lithium-ion battery comprising a cathode current collector, a cathode, a paper separator having a surface coated with an anti-shorting layer, an anode, and an anode current collector, wherein the cathode current collector is in contact with the cathode, the cathode is in contact with the paper separator, the paper separator is in contact with the anode, and the anode is in contact with the anode current collector. The lithium-ion battery can be fabricated by printing a cathode ink onto a first side of a paper separator having a surface coated with Al2O3, printing an anode ink onto a second side of said paper separator, printing a cathode current collector ink on the cathode, and printing an anode current collector ink on the anode.
Resumen de: US2025141039A1
A venting system for a battery includes a venting material disposed proximate to each cell of a plurality of electrochemical cells of the battery, the venting material configured to allow materials ejected due to a thermal event to flow through the venting material. The system also includes a venting device disposed in a fixed position relative to the venting material and the plurality of cells, the venting device including a structure for each cell. The structure includes a wall surrounding an area corresponding to a respective cell and extending away from the respective cell, the wall defining a venting path configured to direct ejected materials away from the respective cell.
Resumen de: US2025141057A1
A conductive member includes a first connection body and a second connection body connected to the first connection body. The first connection body is configured to be clamped with an outer peripheral side of one cell of two adjacent battery cells. The second connection body is configured to be in contact with a pole of the other cell of the two adjacent battery cells. The conductive member is clamped with the outer peripheral side of the battery cell through the first connection body. The busbar is configured to clamp the conductive member with the outer peripheral side of the battery cell through the first connection body.
Resumen de: US2025140780A1
Herein are described processes for and machines adapted for the production of lithium coated conductive substrates having conductive substrate planar surfaces. The process can include providing a lithium coated conductive substrate and then calendering the coated-foil to provide the desired planar surface(s). In a preferable instance, the process provides double sided lithium carrying conducive substrates useful in lithium metal batteries. In another instance, the process provides single or double sided coated-foils carrying polymeric sheets. The machines for the production of the desired products preferably include apparatus for the deposition of lithium metal onto a conductive substrate and one or more calendering systems, preferable within a single vacuum chamber.
Resumen de: US2025140791A1
A method of manufacturing fibrillated fluffy powder includes: performing a first mixing to mix an active material and a conductive agent to obtain a first mixture; adding a first binder to the first mixture, performing a second mixing on the first binder and the first mixture to obtain a second mixture; adding a second binder solution to the second mixture, performing a third mixing on the second binder solution and the second mixture to obtain a third mixture; and performing a fourth mixing on the third mixture, heating the mixed third mixture to obtain the fibrillated fluffy powder.
Resumen de: US2025140792A1
A rechargeable lithium battery including a positive electrode, and the positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector, wherein the positive electrode active material layer includes a first positive electrode active material and a second positive electrode active material, the first positive electrode active material includes lithium nickel-based composite oxide and includes secondary particles composed of a plurality of primary particles, and an average particle diameter (D50) of the secondary particles is about 9 μm to about 25 μm, the second positive electrode active material includes lithium nickel-based composite oxide and comprises single particles, and an average particle diameter (D50) of the single particles is about 0.5 μm to about 5 μm.
Resumen de: US2025140445A1
A fire-resistant cable includes a cable core wire, a fire-resistant silicone sheath layer surrounding portions of the cable core wire excluding both ends thereof and ceramicized at high temperatures to support the cable core wire, and a metal case accommodating the cable core wire and the fire-resistant silicone sheath layer. Both sides of the metal case are provided with openings through which opposite ends of the cable core wire are drawn out to the outside. The fire-resistant cable can be used in a battery pack.
Resumen de: US2025140777A1
A method for manufacturing an electrode for a secondary battery, includes: ejecting, by an ejector, a first slurry and a second slurry at a variable ejection ratio that varies in response to control signals from a controller; coating, by a coater, the first slurry and the second slurry ejected at the variable ejection ratio onto a current collector in a longitudinal direction of the current collector; and drying, by a dryer, the first slurry and the second slurry coated onto the current collector.
Resumen de: US2025141040A1
A binder for a non-aqueous secondary battery separator to form a non-aqueous secondary battery separator excellent in flexibility, etc. is provided. An electricity storage device having excellent long-term storage stability etc. is also provided. The binder for a non-aqueous secondary battery separator includes a polymer (A) of a monomer mixture including a monomer having an acidic functional group, a monomer having an amide group, and an alkyl (meth)acrylate monomer, and a condensation product of a silane compound, and has a glass transition temperature of −60° C. to 60° C. The electricity storage device has a separator substrate provided with at least one protective layer between a pair of electrodes, in which the protective layer includes a polymer of an ethylenically unsaturated monomer, and a silane compound, and the silane compound has no ethylenically unsaturated group but has an alkyl group having 3 to 12 carbon atoms.
Resumen de: US2025140956A1
Some embodiments relate to a method for determining an internal temperature of a battery. The method includes obtaining an initial temperature condition of the battery indicative of battery temperature at an initial time, receiving an electrical current in the battery at a given time after the initial time, and receiving an ambient temperature associated with the battery at the given time. The method includes determining a heat generation rate in the battery based on an internal resistance of the battery and on the received current, and determining a temperature change of the battery at the given time from the initial time, the temperature change being determined based on the initial temperature condition and the heat generation rate. The internal temperature of the battery is determined based on the determined temperature change and the ambient temperature.
Resumen de: AU2024227142A1
Abstract Self-supported porous 3D flexible host anode for lithium metal secondary batteries having a primary coating >5 atomic wt% and in addition to < 5 atomic wt% of at least two additional lithiophilic elements, leading to synergistic plating and stripping effect of the alkali ions, wherein all the coating elements have the capability of forming intermetallic alloys with lithium and/or between themselves within the potential window range of 1.5 V and -0.5 V Vs Li/Li+, having a porosity of at least 70%, and a thickness between 10pm and 100pm, comprising a non-woven, woven or ordered arrangement of constituent fibres with a diameter ranging between 200 nm and 40 pm.
Resumen de: AU2023378026A1
A battery abnormality diagnosis device according to an embodiment disclosed in the present document may comprise: an acquisition unit which acquires voltage-state of charge (SOC) profiles of a plurality of battery units; an identification unit which identifies a designated first number of ranks of the plurality of battery units on the basis of the voltage-SOC profiles; and a diagnosis unit which diagnoses abnormalities in the plurality of battery units on the basis of changes in the ranks.
Resumen de: US2025140989A1
Provided is an insulation pad for preventing heat transfer including a first thermal protection layer composed of an inorganic material, a second thermal protection layer spaced apart from the first thermal protection layer and composed of an inorganic material, and a thermal insulation layer disposed between the first and second thermal protection layers, and including aerogel particles, a binder material, a nanofiber, a surfactant, and a pigment material.
Resumen de: US2025140986A1
A battery system includes multiple battery cells each having a cell vent configured to vent flames originating from the battery cell in the event of a thermal runaway condition of the battery cell, and an insulator disposed adjacent a first battery cell, wherein the insulator comprises a hinged element configured to align with the cell vent of the first battery cell. In a closed position, the hinged element provides insulation for the first battery cell, and in an open position, the hinged element provides a vent to enable flames venting from the cell vent of the first battery cell to escape from between the insulator and the first battery cell to thereby inhibit the flames venting from the cell vent of the first battery cell from reaching a second battery cell.
Resumen de: US2025140982A1
This application discloses a battery module and a battery pack. The battery module includes a cell assembly and a tray. The cell assembly includes a plurality of cell sub groups. The plurality of cell groups are arranged at intervals along a first direction. Each of the cell sub groups includes a plurality of cells. In any one of the cell sub groups, the plurality of cells are arranged at intervals along a second direction. The tray includes a plurality of cell accommodating grooves arranged at intervals along the first direction. A coolant flow channel is arranged in a side wall of each of the cell accommodating grooves, and one of the cell accommodating grooves is disposed corresponding to one of the cell sub groups.
Resumen de: US2025140985A1
An electric work vehicle includes a battery housing including a first battery housing portion and an air cooling system. The air cooling system includes a first warm air path and a second warm air path, the air cooling system includes a first evaporator and a second evaporator, the first warm air path fluidly connects the first battery housing portion to the first evaporator to exhaust first warm air from the first battery housing portion to the first evaporator, and the second warm air path fluidly connects the first battery housing portion to the second evaporator to exhaust second warm air from the first battery housing portion to the second evaporator.
Resumen de: US2025140983A1
An electric work vehicle includes a battery housing and a plurality of ducts. The battery housing includes a plurality of battery housing module compartments to house a plurality of battery modules, and each of the plurality of ducts is attached to a respective one of the plurality of battery housing module compartments.
Resumen de: US2025140991A1
In some embodiments, the battery cell includes a shell, including an opening; an electrode unit, accommodated in the shell, the electrode unit including a main body portion and a tab portion protruding from the main body portion; a cap assembly, for connecting with the shell, and covering and closing the opening; and a first insulating member, accommodated in the shell and adapted to isolate at least part of the main body portion from the shell, the first insulating member including a first insulating plate, and the first insulating plate being disposed on a side of the main body portion facing the cap assembly and being attached to the main body portion. The first insulating member can insulate at least part of the main body portion from the shell.
Resumen de: US2025140781A1
Aspects of the disclosure include an electrode calendering system having an electrode foil wrinkle remover band and a process for manufacturing electrodes using the same. An exemplary system includes a top roll press and a bottom roll press separated from the top roll press by a gap. The gap includes a distance selected to accommodate a current collector having a bare portion and a coated portion having thereon an active electrode material of a first thickness. The system further includes a wrinkle remover band having a second thickness selected, based on the first thickness, to evenly distribute stress across the bare portion and the coated portion of the current collector during a calendering process for forming a pressed electrode.
Nº publicación: US2025140775A1 01/05/2025
Solicitante:
GM GLOBAL TECH OPERATIONS LLC [US]
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Resumen de: US2025140775A1
A method for manufacturing a battery cell includes coating a three dimensional current collector (3DCC) with a lithiophilic metal oxide layer; and one of laminating the 3DCC with the lithiophilic metal oxide layer between a first lithium metal layer and a second lithium metal layer to create an anode electrode; and coating the 3DCC with the lithiophilic metal oxide layer with molten lithium to create an anode electrode.
BOPI
Sede Electrónica
