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1719
results.
Updated on
07/06/2025 [07:24:00]
Results 275 to 300 of 1719
Absstract of: US2025183278A1
The present application provides a secondary battery and an electrical device. The negative electrode plate includes a negative electrode current collector and a negative electrode film which has a first surface away from the negative electrode current collector and a second surface opposite to the first surface and has a thickness denoted as H; a region within a thickness ranging from the second surface of the negative electrode film to 0.3 H is denoted as a first region of the negative electrode film, a region within a thickness ranging from the first surface of the negative electrode film to 0.3 H is denoted as a second region of the negative electrode film; the first region includes a first active material including a first carbon-based material and having a pore structure, and the second region includes a second active material including a second carbon-based material.
Absstract of: US2025183271A1
Provided is a positive electrode active material which is for a non-aqueous electrolyte secondary battery and with which a non-aqueous electrolyte secondary battery with cost reduction, high capacity, and high efficiency can be achieved. A positive electrode active material included in this non-aqueous electrolyte secondary battery includes a lithium-transition metal composite oxide containing at least 90 mol % of Ni and Mn with respect to the total molar amount of metal elements other than Li. The lithium-transition metal composite oxide is composed of single particles and secondary particles formed through the aggregation of 2 to 1,000 single particles. The average particle size of the single particles is 0.5-5 μm. A boron compound containing a surface-modified layer is formed on the surface of the lithium-transition metal composite oxide, and the surface-modified layer has a thickness of at most 100 nm.
Absstract of: US2025183267A1
A lithium ion secondary battery negative electrode active material capable of suppressing decrease in discharge capacity retention ratio (cycle characteristic) even after repeating charge and discharge. The lithium ion secondary battery negative electrode active material is a composite with silicon particles being dispersed in a matrix that contains a lithium aluminosilicate having a three-dimensional network structure, wherein the lithium aluminosilicate is represented by the following general formula (1):LiAlxSiyO1/2+3x/2+2y+δ (1),wherein in the general formula (1), x satisfies 0.4≤x≤2.5, y satisfies 0.4≤y≤6.8, and δ satisfies −0.4≤δ≤0.4.
Absstract of: US2025183275A1
An anode for a lithium secondary battery includes an anode current collector, a first anode active material layer disposed on at least one surface of the anode current collector and including a first anode active material, and a second anode active material layer disposed on the first anode active material layer and including a second anode active material. The first anode active material includes a graphite-based active material, and the second anode active material includes a composite particle including silicon. A tortuosity of the second anode active material layer obtained by an X-ray microscope (XRM) analysis is 2.32 or less.
Absstract of: US2025183683A1
A battery module (2) and a battery pack (100) are disclosed. The battery module (2) comprises a control circuit (1), a first node (3) and a second node (4) for charging and/or discharging, at least two first branches (71-7M). Each first branch (71-7M) comprises a respective plurality of battery cells (C11-CN1, . . . , C1M-CNM) of the battery cells (C11-CNM), and a respective first switch (Q11-Q1M). The battery module (2) comprises one or more second branches (81-8M) having respective second switches (Q21-Q2M). The control circuit (1) is provided with a number of connection lines (V1-VN). Each connection line (V1-VN) is arranged to parallelly connect a respective set (C11-C1M, C21-C2M, . . . , CN1-CNM) of corresponding battery cells (C11-CNM) to each other via a respective controllable over-current protecting component (S11-S1M, . . . , SN1-SNM). Said each corresponding battery cell (C11-CNM) is comprised in a respective first branch (71-7M) of said at least two first branches (71-7M). The corresponding battery cells are corresponding to each other in that of a respective second count of battery cells towards the first or second node (3, 4) from said each corresponding battery cell in the respective first branch (71-7M) is equal.
Absstract of: US2025183694A1
To make it easy to take certain countermeasure in a situation where a certain degree of deterioration of a power storage unit is anticipated. An in-vehicle backup control device is used in an in-vehicle power supply system including a power supply unit and a power storage unit. The in-vehicle backup control device includes a discharging unit (charging/discharging unit) that discharges the power storage unit and a control unit that controls the discharging unit. The control unit executes countermeasure processing when the voltage of the power storage unit falls below a threshold voltage (Vth) and an elapsed time period during which the voltage of the power storage unit is below the threshold voltage (Vth) exceeds a determination time period (TJ).
Absstract of: US2025183690A1
A controller may receive, prior to initiation of charging of a battery pack by a charging unit, charging information relating to the battery pack. The controller may identify, in accordance with a comparison of the charging information to charging guidelines, whether charging the battery pack is to comply with the charging guidelines. The controller may output, responsive to identifying that charging the battery pack is to violate the charging guidelines, a request for an operator input to indicate whether charging the battery pack is to be initiated. The controller may cause initiation of charging of the battery pack responsive to the operator input indicating that charging is to be initiated.
Absstract of: US2025183682A1
A film cable includes: a conductor wire; and an overcurrent blocking unit on the conductor wire and configured to block an overcurrent flowing through the conductor wire by reducing an allowable current of the conductor wire.
Absstract of: US2025183672A1
Described herein are systems for energy storage leveraging various advances in power electronics so that the systems are suitable for stationary and portable power applications. In some embodiments, a system includes a universal bus and universal battery modules connected to the universal bus, in which each module includes battery cells, a power electronics transformer converter (PETC) system, and a direct expansion (DX) based phase-change cooling system to reduce heat produced by the modules to provide a system that is suitable for stationary and portable power applications.
Absstract of: US2025183479A1
Disclosed is a separator for an electrochemical device containing a lithium manganese-based active material. The separator includes a porous polymer substrate, and a porous coating layer which is laminated on at least one surface of the porous polymer substrate and contains inorganic particles and a polymer binder. The inorganic particles have a sulfonic acid group introduced on the surface of a metal oxide or metal hydroxide, and at least a portion of the sulfonic acid group has hydrogen cations substituted with lithium cations.
Absstract of: US2025183478A1
Problem: To provide a polyamide-imide resin that enables stable spinning of a nanofiber having a small diameter, a polyamide-imide fiber formed from the polyamide-imide resin, and a nonwoven fabric including the polyamide-imide fiber. Solution: A polyamide-imide resin including a constitutional unit derived from an organic acid salt compound.
Absstract of: US2025183433A1
An energy storage apparatus of the present embodiment includes an energy storage device, an adjacent member, and a terminal member arrayed sequentially in a first direction, and a first protruding part protruding from the terminal member toward the adjacent member. The adjacent member includes a first surface expanding in a direction orthogonal to the first direction and facing the terminal member, and a second surface expanding in a direction orthogonal to the first direction and faces the energy storage device. The first surface includes a first recess recessed toward the second surface at a position corresponding to the first protruding part.
Absstract of: WO2025115475A1
Provided are a battery pack and an electric apparatus that are highly convenient and utilize USB. A battery pack 1 that can be attached to and detached from an apparatus body 4 comprises: a first cell unit 11 and a second cell unit 12 that are not connected to each other when the battery pack 1 is not attached to the apparatus body 4, and are connected to each other when the battery pack 1 is attached to the apparatus body 4; a USB port 17 to which an external apparatus can be connected, the USB port 17 being such that electric power can be supplied from the first cell unit 11 and the second cell unit 12 to the external apparatus via the USB port 17 and/or electric power can be received by the first cell unit 11 and the second cell unit 12 from the external apparatus via the USB port 17; and a MCU 19 that controls input or output of electric power mediated by the USB port 17. When the battery pack 1 is connected to the apparatus body 4, the MCU 19 permits input or output of electric power mediated by the USB port 17.
Absstract of: WO2025115732A1
In this battery pack, a battery holder provided with a plurality of rechargeable cylindrical battery cells is stored in an outer case. The battery holder comprises a plurality of holding tube parts that hold the plurality of rechargeable battery cells in a mutually parallel orientation and a heat capacity part coupled to the outside of the holding tube parts to absorb heat from the rechargeable battery cells. The outer case is provided with a coupling heat capacity part protruding from the inner surface of the outer case, the coupling heat capacity part being formed from a plurality of heat-conducting protrusions that are thermally coupled to the battery holder to absorb heat conducted from the battery holder. The battery holder is provided with a plurality of mating recesses adjacent to the heat capacity part, in which the plurality of mating recesses are coupled to the plurality of heat-conducting protrusions in a mating structure. In the battery pack, the heat-conducting protrusions of the outer case mate with the mating recesses of the battery holder to conduct the heat generated by the rechargeable battery cells from the battery holder to the outer case and dissipate the heat to the outside.
Absstract of: WO2025115783A1
The present invention provides a lithium ion battery which has excellent charge/discharge characteristics. A lithium ion secondary battery according to the present invention comprises: a positive electrode that has a porous positive electrode active material layer; a negative electrode; a separator; and a nonaqueous electrolyte solution. The lithium ion secondary battery is characterized in that the proportion of N-methylpyrrolidone to the weight of the positive electrode mixture in the positive electrode active material layer is 400 ppm or less.
Absstract of: WO2025112900A1
A holder, an electrical connection assembly and a battery module, which relate to the technical field of batteries. The holder comprises a first holder and a second holder, wherein a first side of the first holder is configured for installation of a CCS assembly, and a second side thereof is connected to the second holder; the second holder is provided with a first installation slot configured for installation of a BMS board, a first slot opening configured for electric connection of the BMS board and a BDU module is provided at one slot end of the first installation slot, and a first side wall is in contact with the BDU module; and the first holder has a first through hole configured for electric connection of the CCS assembly and the BMS board.
Absstract of: WO2025112606A1
A battery pin and a battery. The battery pin comprises a top cover connecting portion and a tab connecting portion. The tab connecting portion comprises a main body plate, a connecting plate, and a bending plate, wherein the bending plate is configured to be connected to a tab. The top cover connecting portion is bendably connected to one end of the main body plate, the bending plate is bendably connected to one side of the connecting plate, and the main body plate is bendably connected to the other side of the connecting plate.
Absstract of: WO2025112903A1
An electric system, comprising a battery pack. The battery pack comprises a heat exchange assembly, and the heat exchange assembly is used for carrying out heat exchange on a battery in the battery pack. The heat exchange assembly comprises a heat exchange component; the heat exchange component at least comprises two heat exchange channel groups and two flow convergence channel groups; the two heat exchange channel groups are independently arranged; the two flow convergence channel groups are independently arranged; and each heat exchange channel group is correspondingly communicated with one flow convergence channel group.
Absstract of: WO2025112715A1
A composite current collector and a preparation method therefor, and an electrode sheet, a battery and an electric apparatus. The composite current collector comprises a support layer, and a bonding layer, a first conductive layer and a second conductive layer, which are sequentially arranged in a stacked manner on at least one surface of the support layer, wherein the first conductive layer contains a first metal material, the second conductive layer contains a second metal material, and the grain size of the second metal material is smaller than that of the first metal material. Thus, the fracture strength and tensile modulus of the composite current collector are effectively improved, and the problems of wrinkling and shrinkage existing in a tab area of the composite current collector are ameliorated.
Absstract of: US2025183297A1
Provided is a positive electrode active material containing a compound containing an alkaline metal that is represented by the following Compositional Formula (1), and has a chain structure in which MX4 tetrahedrons are connected to each other by edge-sharing in a crystal structure.AaMbX4 (1)(In Formula (1), A is an alkaline metal element, M is a transition metal element, X is at least one of S and Se, and relationships of 0
Absstract of: US2025183258A1
A positive electrode active material for a non-aqueous electrolyte secondary battery contains a lithium-nickel-manganese-containing composite oxide which is represented by composition formula LixNiyMnzMe1-y-zO2 (where Me is a metal element other than Li, Ni, and Mn, x≤1.16, 0.3≤y≤0.7, and 0.3≤z≤0.7), has a layered structure belonging to space group R-3m, and has a diffraction peak at 2θ in the range of greater than or equal to 65° and less than or equal to 67° in an X-ray diffraction pattern when charging and discharging are performed until the charge voltage reaches 4.8 V.
Absstract of: US2025183266A1
Large-scale anodes containing high weight percentages of silicon suitable for use in lithium-ion energy storage devices and batteries, and methods of manufacturing the same, are described. The anode material described herein can include a film cast on a current collector substrate, with the film including a plurality of active material particles and a conductive polymer membrane coated over the active material particles. In some embodiments, the conductive polymer membrane comprises polyacrylonitrile (PAN). The method of manufacturing the anode material can include preparation of a slurry including the active material particles and the conductive polymer material, casting the slurry on a current collector substrate, and subjecting the composite material to drying and heat treatments.
Absstract of: US2025183276A1
An anode for a lithium secondary battery includes an anode current collector, a first anode active material layer disposed on at least one surface of the anode current collector and including a first anode active material, and a second anode active material layer disposed on the first anode active material layer and including a second anode active material. The first anode active material includes a graphite-based active material, and the second anode active material includes a composite particle including silicon. A diffusivity of the first anode active material layer obtained by an X-ray microscope (XRM) analysis is 3.87 or less.
Absstract of: US2025183259A1
An all-solid-state battery and a method of fabricating the same are described. More specifically, introducing a negative-electrode active material layer, which includes a negative-electrode active material which is capable of forming an alloy or compound with lithium, into a negative electrode of the all-solid-state battery in which a negative electrode, a solid electrolyte layer, and positive electrode are sequentially laminated, and followed by a pre-lithiation process, increases the Coulombic efficiency of the negative electrode and, consequently, the capacity of the battery.
Nº publicación: US2025183295A1 05/06/2025
Applicant:
LG ENERGY SOLUTIONS LTD [KR]
LG ENERGY SOLUTION LTD [KR]
LG Energy Solutions, Ltd,
LG Energy Solution, Ltd
Absstract of: US2025183295A1
A positive electrode active material in the form of a single particle and a lithium secondary battery containing the positive electrode active material thereof are provided. The positive electrode active material has a nickel-based lithium composite metal oxide single particle. The single particle includes a metal doped in the crystal lattice thereof. The single particle includes, in the crystal lattice, a surface part having a rock salt structure, a spinel structure, or a mixed structure thereof from a surface of the single particle to a depth of 0.13% to 5.26% of a radius of the single particle, and a central part having a layered structure from an interface with the surface part thereof to the center part of the single particle.
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