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893
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Última actualización
19/10/2024 [07:18:00]
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Resumen de: US2024348076A1
Battery cell charging method for charging a lithium ion battery cell of a battery pack of an electric hand-held power tool, in which a charging current made available to the lithium ion battery cell is set on the basis of a cell state characterizing the lithium ion battery cell, wherein the cell state characterizing the lithium ion battery cell is a state of health and/or an internal resistance of the lithium ion battery cell.
Resumen de: US2024347788A1
In some examples, this disclosure describes a method of operating a plurality of battery management circuits of a battery management system associated with an electric device. The method may comprise adjusting a first trim value associated with a first battery management circuit during operation of the electric device, and adjusting a second trim value associated with a second battery management circuit during operation of the electric device. The method may also comprise sinking a first amount of current in the first battery management circuit based on the first trim value; and sinking a second amount of current in the second battery management circuit based on the second trim value, wherein sinking the first amount of current and sinking the second amount of current causes the first battery management circuit and the second battery management circuit to consume substantially similar amounts of current.
Resumen de: US2024347835A1
The present invention belongs to the field of fishing equipment, especially a fishing reel battery, including: a case, two pairs of brackets being provided inside of the case, fixing grooves being provided inside of a plurality of brackets, and a plurality of batteries being provided between the two pairs of brackets; and a top base, provided on the top of the case, a charging and discharging interface being fixed on the inner wall of the top base. The cost of consumables can be saved, the fishing reel battery facilitates the fitting with fishing tackle, and the batteries can be positioned to avoid shaking and short circuit of the batteries.
Resumen de: US2024347708A1
An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on at least one surface of the anode current collector. The anode active material layer includes a carbon-based active material, a first silicon-based active material including a carbon-silicon composite active material, and a second silicon-based active material including a silicon oxide (SiOx, 0<x<2). A content of the first silicon-based active material is in a range from 2 wt % to 40 wt % based on a total weight of the anode active material layer.
Resumen de: US2024347826A1
A shell includes a body part, a thickened part connected to the body part and arranged at the opening of the shell, at least a portion of the thickened part having a wall thickness larger than that of the body part, in which the thickened part is provided with a support part for supporting the cover that closes the opening.
Resumen de: US2024347787A1
Described herein are methods and systems for restoring LiMLE cells by cycling such cells using restoring conditions comprising specially selected restoring discharge current (e.g., at least 1 D) and a restoring charge current (e.g., less than 0.5 C). This restoration cycling can be triggered when a LiMLE cell reaches a restoring threshold, determined based on one or more of the following operating and resting conditions: a discharge capacity, an overpotential, an impedance, a direct-current (DC) resistance, the rest period duration, an open circuit voltage, operating discharge and/or charge currents, and an operating cycle count. The restoring threshold is selected to reflect the negative electrode state in a LiMLE cell. The restoring conditions are selected to change this negative electrode state to improve the performance of the LiMLE cell. For example, the restoring discharge can reduce the cell's state of charge (SOC) by at least 10%.
Resumen de: US2024347882A1
A rechargeable battery module including: a first holder configured to accommodate first sides of a plurality of battery cells spaced apart from each other in a first direction and a second direction crossing each other; a second holder configured to accommodate second sides of the battery cells; a coupling member formed of a conductive material and configured to fasten the first holder and the second holder to each other in a third direction crossing the first and second directions; a plurality of tabs configured to electrically connect the battery cells; and a plurality of bus bars configured to connect the tabs to a battery management system. At least one of the first holder or the second holder includes a rib protruded in the third direction.
Resumen de: US2024347881A1
An end cover assembly includes: an end cover provided with an electrode lead-out hole; an electrode terminal including a terminal plate located on a side of the end cover and covering the electrode lead-out hole, with an outer peripheral surface protruding from an inner wall of the electrode lead-out hole; a sealing member at least partially disposed between the electrode terminal and the end cover; a fixing member configured to be connected to the end cover and surround the terminal plate so as to fix the electrode terminal onto the end cover, and including a flange extending in a direction approaching an axis of the electrode lead-out hole and located on a side of the terminal plate farther away from the end cover; and a heat-resistant part, at least a portion thereof is located between the flange and the electrode terminal in an axial direction of the electrode lead-out hole.
Resumen de: US2024347880A1
A secondary battery includes: an electrode assembly having a first electrode tab and a second electrode tab exposed on opposite sides, respectively; a first current collection part electrically coupled to the first electrode tab; a case accommodating the electrode assembly and the first current collection part and having opposite sides opened; a first cap plate sealing a first side opening from among the opposite sides of the case; a first terminal mechanically and electrically coupled to the first current collection part and exposed to the outside of the first cap plate; and a blind rivet coupling the first terminal and the first current collection part.
Resumen de: US2024347879A1
A battery cell having a layer stack including anode layers and corresponding cathode layers. The anode and cathode layers being stacked alternately one on top of the other. A separator layer is arranged between each anode and cathode layer. Anode or cathode conductor tracks are guided laterally out of the layer stack at least from some of the anode layers and/or some of the cathode layers at least on a first end face of the layer stack. The anode conductor tracks or the cathode conductor tracks being combined in a bundled manner and each contacted on the anode current collector or on the cathode current collector. The bundles of the anode or cathode conductor tracks are each passed between two folds, and insulation layers are held in position by a spring action of their particular folds against a pressure being applied indirectly by the first cover.
Resumen de: US2024347709A1
Provided are a silicon negative electrode material, which is characterized by comprising silicon particles and carbon nanotubes grown on the surface of the silicon particles, wherein the carbon nanotubes comprise fluffy carbon nanotubes and intertwined filamentary carbon nanotubes, and the silicon particles are wrapped by the fluffy carbon nanotubes and the filamentary carbon nanotubes. Further provided is a method for preparing the silicon negative electrode material.
Resumen de: US2024347707A1
Provided are a cathode active material composition, a cathode plate, a secondary battery, a battery module, a battery pack, and an electric device. In particular, the present application provides a cathode active material composition, including a cathode active material and a dispersant. The cathode active material composition of the present application can improve the poor dispersion of the cathode active material powder and the high viscosity of the slurry during the preparation of the cathode slurry, and further improve flexibility of the cathode plate.
Resumen de: US2024347706A1
The present invention provides a negative electrode composite material, a preparation method thereof, a negative electrode and a lithium ion secondary battery. The negative electrode composite material comprises negative electrode active material particulates and Li2CO3 and LiOH at the surface of the negative electrode active material particulates, the negative electrode active material particulates comprise: particles containing silicon oxide and at least one lithium silicate selected from Li2SiO3 and Li2Si2O5; and a carbon coating layer coating at least a part of surface of the particles, based on the weight of the negative electrode active material particulates, the content of Li2CO3 is greater than about 0 wt % and less than about 0.01 wt %, and the content of LiOH is greater than about 0 wt % and less than about 0.01 wt %. By the negative electrode composite material, the preparation method thereof, the negative electrode and the lithium-ion secondary battery of the present invention, the residual lithium amount can be reduced to a great extent, the processing performance of the slurry can be significantly improved, and the initial Coulombic efficiency and cycle performance of the lithium-ion secondary battery can be improved.
Resumen de: US2024347869A1
The present disclosure discloses a battery pack including a cells contact system (CCS) assembly. The CCS assembly includes serial-parallel busbars, an insulating support, and one or more flexible circuit boards. The serial-parallel busbars are configured to electrically connect a plurality of cells to form one or more cell assemblies. The insulating support is connected to the serial-parallel busbars. The flexible circuit board includes a first circuit board vertically attached and fixed to an edge of the insulating support, so that the first circuit board and the insulating support may be integrally manufactured.
Resumen de: US2024347878A1
A button cell includes a button-shaped electrode assembly including a plurality of first electrodes, a plurality of second electrodes, and a plurality of separators positioned between the plurality of first electrodes and the plurality of second electrodes, with the plurality of first electrodes, the plurality of second electrodes, and the plurality of separators being stacked in one direction. A first case and a second case are combined to house the electrode assembly; and a bonding portion insulating and bonds the first case and the second case. The electrode assembly further includes a plurality of first electrode tabs spaced apart from each other along a first part of a circular border of the electrode assembly, with each of the first electrode tabs extending from the plurality of first electrodes, each of the plurality of first electrode tabs extending toe a center of a first surface of the electrode assembly, and the electrode tabs being connected to each other at the center of the first surface of the electrode assembly. A plurality of second electrode tabs are spaced apart from each other along a second part of the circular border of the electrode assembly from the plurality of second electrodes, extending to the center of the second surface of the electrode assembly, and connected to each other at the center of the second surface of the electrode assembly.
Resumen de: US2024347875A1
A wiring module includes: a wire with a core wire; a wire relay member connected to the core wire; a busbar configured to be connected to electrode terminals; a circuit board provided with a conductive path, the conductive path including a first land electrically connected to the busbar and a second land electrically connected to the wire relay member, wherein the second land includes a connection land part, and a mounting land part includes a core wire connection part connected to the core wire and the connection land part with a first solder, and a mounting part connected to the mounting land part with a second solder, which is different from the first solder.
Resumen de: US2024347830A1
A housing for receiving electrode stacks has (i) at least three individual housings, wherein: (ii) each individual housing includes a prism having a base surface and side surfaces, the base surface having a polygon that includes at least five vertices; (iii) the prism has a cavity, which is suitable for receiving a cylindrical electrode stack, the cavity extending between the base surface and a top surface of the prism; (iv) each of the three individual housings is mechanically connected, by two of its side surfaces, to one side surface of each of the two other individual housings.
Resumen de: US2024347784A1
A battery separator is provided comprising a microporous membrane comprising one or more layers of a polyolefin and a heat absorption layer affixed to a surface of the microporous membrane, wherein the heat absorption layer is configured to absorb heat and reduce thermal propagation within a battery cell. The heat absorption layer can comprise at least one of a phase change material or a high heat capacity material configured to absorb heat in or above a normal battery cell operating range.
Resumen de: US2024347824A1
Provided are an end cover assembly, a battery cell, a battery, and an electrical device, relating to the field of batteries. The end cover assembly includes an end cover, a groove, and a reinforcing portion. The end cover has a first surface and a second surface opposite in its thickness direction. The groove is recessed from the first surface in a direction towards the second surface. The reinforcing portion protrudes from the first surface and/or the second surface, and surrounds the groove.
Resumen de: US2024347705A1
The invention relates generally to a method for making a silicon-carbon composite comprising nanoscale silicon and carbon, the method comprising the steps of preparing a dispersion of silicon nanoparticles and the selected form/s of carbon; spray drying the dispersion to form essentially spherical silicon nanoparticles; heat treating the silicon nanoparticles to pyrolyse and/or burn off any polymers, and to strengthen the silicon nanoparticles; coating the silicon nanoparticles with carbon to form the Si:C composite; and optionally, adding additional elements such as lithium, magnesium, nitrogen and halogen gases to the composite, either during the heating step (c) or coating step (d) or during a subsequent heat treatment step. The invention relates further to composites made by such method, an anode made of such composite and a batter comprising such anode.
Resumen de: US2024347704A1
A negative active material and a rechargeable lithium battery including the negative active material. The negative active material includes first, second and third active materials. The first active material is a crystalline carbon. The second active material includes a first core, which includes crystalline carbon and a silicon-based material, and a first carbon coating positioned on the first core. The third active material includes a second core, which includes a silicon-based material, and a second carbon coating layer positioned on the second core.
Resumen de: US2024347867A1
An assembled battery comprising battery cells, a first and a second inter-cell connecting films having a first and a second conductive patterns, respectively, each of battery cells including a conductive exterior body housing an electrode body in the interior, the exterior body having a positive and a negative electrode terminal portions electrically connected to the positive and the negative electrodes of the electrode body, respectively, wherein one of the positive and negative electrode terminal portions of the exterior body of each of battery cells is in contact with the first conductive pattern, so that the other is in contact with the second conductive pattern, each of battery cells is sandwiched by the first and the second inter-cell connecting films, whereby via the first and the second conductive patterns, each of battery cells are electrically connected in parallel and/or in series with each other.
Resumen de: US2024347703A1
A negative active material and a rechargeable lithium battery including the negative active material, the negative active material includes a silicon-carbon composite including nano-silicon and amorphous carbon; an N-doped carbon layer on the silicon-carbon composite; and a coating layer on the N-doped carbon layer, the coating layer including carbon nanotubes.
Resumen de: US2024347885A1
An electrode assembly includes a first electrode, a separator and a second electrode, the first electrode, the separator, the second electrode being stacked and wound, an outermost portion of the electrode assembly including an empty space in which the first electrode covers an end portion of the second electrode with the separator interposed therebetween, and a thickness buffer portion located in the empty space, and a secondary battery including the electrode assembly. A battery pack including the secondary battery and a vehicle including the battery pack are also provided.
Nº publicación: US2024347702A1 17/10/2024
Solicitante:
PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
Panasonic Intellectual Property Management Co., Ltd
Resumen de: US2024347702A1
Battery according to the present disclosure includes first electrode, second electrode, and electrolyte solution. First electrode includes a base material that is a porous body and an active material layer located on a surface of the base material. The active material layer contains an alloy containing Bi and Ni. The active material layer may contain an alloy containing Bi and Ni as a main component of the active material. In battery, for example, first electrode may be a negative electrode, and second electrode may be a positive electrode.
BOPI
Sede Electrónica
