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1729
results.
Updated on
19/03/2026 [07:23:00]
Results 400 to 425 of 1729
Absstract of: US20260072085A1
A jig for measuring three electrode voltages includes: a jig body having a receiving portion for a secondary battery; a jig door for sealing the receiving portion; a positive electrode on the receiving portion, electrically connected to a positive electrode tab, and protruding outwardly; a negative electrode on the receiving portion of the jig body, being in contact with and electrically connected to a conductive member electrically connected to the secondary battery, and protruding outwardly; and a reference electrode inserted into a winding core of an electrode assembly of the secondary battery in the receiving portion while extending through a top plate of the jig body and protruding to an upper portion of the jig body. The reference electrode comprises a metal wire and a metal cap wrapping around the metal wire, and a length of the metal cap is in a range of 15 mm to 20 mm.
Absstract of: US20260074397A1
A conductive module, a cover plate assembly, and a battery cell are provided. The conductive module includes a pole, where the pole includes a metal post and a metal layer bonded on a surface of the metal post. The metal layer includes a clamping portion; and a terminal pressing block connected to the pole. The clamping portion is clamped between the metal post and the terminal pressing block. The pole is provided to include the metal post and the metal layer, and the pole is connected to the terminal pressing block. A portion (i.e., the clamping portion) of the metal layer is clamped between the metal post and the terminal pressing block.
Absstract of: US20260074295A1
An electrode assembly for a secondary battery includes a first electrode plate with a first electrode pattern part, the first electrode pattern part including a plurality of patterns, a second electrode plate with a second electrode pattern part, the second electrode being stacked on at least one surface of the first electrode plate, and the second electrode pattern part including a plurality of patterns corresponding to positions and shapes of the plurality of patterns of the first electrode pattern part, and a separator between the first electrode plate and the second electrode plate.
Absstract of: US20260074290A1
An electrolyte, comprising: an amount of potassium hexafluorophosphate; at least one cyclic carbonate, the at least one cyclic carbonate optionally comprising at least one of ethylene carbonate and propylene carbonate; and at least one organic phosphate, the at least one organic phosphate optionally comprising at least one of trimethyl phosphate and triethyl phosphate. An electrical cell, comprising: the electrolyte according to the present disclosure, and an electrode, the electrode contacting the electrolyte. A method, comprising: any one or more of separating, disposing, or at least partially neutralizing any one or more of HF, HPO2F2, H2PO3F, an organofluorophosphate, a monofluorophosphate, an organophosphate, and a phosphonate evolved from operating an electrical cell that includes as an electrolyte any one or more of LiPF6, NaPF6, and KPF6.
Absstract of: US20260074293A1
Provided herein are improved electrolyte formulations. The improved performance may be realized as improved discharge rate cycling, improved capacity, improved Coulombic efficiency, or improved capacity upon cycling.
Absstract of: US20260074197A1
A lithium-ion battery component and method of manufacture are presented. An active material layer with a lithiophilic nitrate compound is mixed with graphite particles and coated onto a current collector. Upon polarization, lithiophilic nanoparticles form on the graphite surfaces, while nitrate anions remain in the electrode structure. The lithiophilic nanoparticles inhibit lithium plating during charging and increase electronic conductivity. The nitrate anions weaken lithium ion solvation in the electrolyte, facilitating faster lithium ion intercalation into the graphite.
Absstract of: US20260074183A1
A method of making silicon-carbon composite particles is disclosed. The method includes: (A1) carrying out metallothermic reduction on initial particles comprising silicon oxide in the presence of a metal to form first intermediate particles comprising (1) an oxide of the metal and (2) silicon; (A2) forming a termination material on and in the first intermediate particles to form second intermediate particles; (A3) selectively removing the oxide of the metal from the second intermediate particles to form third intermediate particles; and (A4) forming a protective material on and in the third intermediate particles to form the silicon-carbon composite particles. In some implementations, the metal comprises magnesium or a magnesium-aluminum alloy. Silicon-carbon composite particles, lithium-ion rechargeable batteries, and other related processes and components are also disclosed.
Absstract of: US20260074185A1
A non-aqueous electrolyte secondary battery comprises an electrode body and an exterior body, and has a volumetric energy density of 600 Wh/L or more. The positive electrode includes: a positive electrode core body; and a positive electrode mixture layer containing a positive electrode active material. The positive electrode active material contains: a lithium-containing composite oxide having a layered rock-salt structure; and a surface modification layer that is present on particle surfaces of the composite oxide. The surface modification layer contains: at least one element of Ca and Sr; and at least one element selected from the group consisting of W, Mo, Ti, Si, Nb, and Zr. The positive electrode mixture layer has a base weight amount of 250 g/m2 or more. At least three positive electrode leads are connected to the positive electrode.
Absstract of: US20260074186A1
A positive electrode for a rechargeable lithium battery includes: a current collector; a first positive electrode active material layer on a first surface of the current collector; and a second positive electrode active material layer on a second surface of the current collector, wherein the first positive electrode active material layer includes a 1a layer in contact with the current collector and a 1b layer on a surface of the 1a layer, the 1a layer and the 1b layer each include a positive electrode active material and a binder, the 1a layer and the 1b layer have pores, a ratio of a porosity of the 1b layer to a porosity of the 1a layer is about 0.9 to about 1.1, and a thickness ratio of the first positive electrode active material layer to the second positive electrode active material layer is about 1.3:1 to about 3:1.
Absstract of: US20260074381A1
A busbar assembly for an electrical cell module is disclosed having a pair of opposing module end plates supporting an adjacent pair of cell stacks. The assembly includes a frame member having first and second engaging means to cooperatingly mount the busbar assembly, in an assembled position, to the module end plates, and a receiving portion having a series of apertures, extending between upper and lower faces. The assembly includes a plurality of busbar elements, each having a first surface and an opposing second surface, wherein each aperture of the receiving portion receivingly engages at least one busbar element with its first surface oriented towards the lower face. Each aperture includes a support portion and a retaining protrusion to cooperatingly restrict relative movement of the busbar elements between the upper lower faces of the receiving portion as the assembly is mounted to the electrical cell module in the assembled position.
Absstract of: US20260074350A1
An energy storage/battery system is disclosed. The system can include a multi-voltage configurable module (MVCM) and a multi-voltage configurable backplane (MVCB) that form the system. The system can be dynamically controlled to bring MVCMs on or offline to deliver power and capacity to a device. The MVCM can include a main housing with first cavities extending through the main housing to receive battery cells and second cavities in which printed circuit boards can be positioned to support the battery cells. The MVCB can include separable main housing sections.
Absstract of: US20260074347A1
A battery pack according to the present disclosure includes a battery case, a battery module, a first fastening member, a second fastening member, and a thermal conduction member. The battery case includes an upper case and a lower case. The battery module is stored in the battery case. The battery module includes a plurality of battery cells that is stacked in the battery module. The first fastening member is configured to fasten the top plate section of the upper case and the battery module. The second fastening member is configured to fasten the bottom plate section of the lower case and the battery module. The thermal conduction member is provided in contact with the upper surface of the battery module and the inner surface of the top plate section, between the battery module and the top plate section.
Absstract of: US20260074382A1
A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case that is connected to the first electrode and accommodates the electrode assembly, and includes an opening; a cap plate that is coupled to the case to cover an outer area of the opening and includes a through-hole exposing a central area of the opening; a terminal plate that is connected to the second electrode and is insulation-bonded to the cap plate so as to cover the through-hole; and a thermal-fusion layer that is positioned between the cap plate and the terminal plate and insulation-bonds the cap plate and the terminal plate, and the cap plate includes a plating layer that is directly bonded to the thermal-fusion layer.
Absstract of: US20260074535A1
According to an embodiment, a battery module includes a cell group in which a first cell and a second cell are connected in parallel, a first circuit breaker mechanism configured to disconnect connection between the first cell and the second cell when a temperature of the first cell is equal to or higher than a first temperature, and a connection mechanism configured to connect the first cell to a discharge circuit when the temperature of the first cell is equal to or higher than a second temperature higher than the first temperature.
Absstract of: US20260074319A1
A thermal management system includes a first liquid pipeline, a second liquid pipeline and a switching valve group, and the switching valve group is connected between the first liquid pipeline and the second liquid pipeline. The switching valve group can be switched between a first working position and a second working position; when the switching valve group is at the first working position, a circulation loop having the first liquid pipeline and a circulation loop having the second liquid pipeline are two circulation loops in which liquid flow circulations do not interfere with each other; and, when the switching valve group is at the second working position, the first liquid pipeline and the second liquid pipeline form a series circulation loop. The thermal management system can meet the working requirements of a device corresponding to a first heat exchanger and a device corresponding to a second heat exchanger.
Absstract of: US20260074316A1
A charge-discharge circuit and an electric device. The charge-discharge circuit includes a power supply module, a first drive assembly, a second drive assembly, and a first switch module, where the first drive assembly and the second drive assembly are connected in parallel between a positive terminal and a negative terminal of the power supply module; and a terminal of the first switch module is connected to the first drive assembly, and another terminal of the first switch module is connected to the second drive assembly.
Absstract of: US20260074315A1
An energy storage system and a self-heating method therefor are provided. By means of the self-heating method for an energy storage system, when a battery temperature of the energy storage system is lower than a preset permissible operation temperature, an electric energy conversion apparatus is controlled to operate in a reactive operation mode. Since a cooling liquid of the energy storage system can heat conduction with the electric energy conversion apparatus and a battery pack, the battery pack is heated by means of the flow of the cooling liquid; and after the battery temperature reaches the preset permissible operation temperature, the electric energy conversion apparatus can be controlled to operate in a normal operation mode.
Absstract of: US20260074314A1
Proposed is an apparatus for disposing of battery cells, the apparatus comprising, a conveying device conveying a worktable with a battery cell placed thereon in one direction, a guiding device guiding a position where the battery cell is to be placed on the worktable and sensing whether the battery cell is placed on the worktable, a sensing device sensing a presence or absence of a folding portion and a length of a tab of the battery cell, an aligning device aligning the battery cell in a first direction based on the presence or absence of the folding portion and in a second direction based on the length of the tab, a damaging device damaging a part of a pouch film so that an electrode assembly is exposed, and an unloading device making contact with a lower surface of the damaged battery cell and lifting the battery cell from the worktable.
Absstract of: US20260074313A1
Disclosed are a system and method for preventing the reuse of a battery monitoring system (BMS) and a system and method for preventing an unauthenticated private company from reusing a BMS only when a cell is replaced in a battery pack. The system includes a battery monitoring unit configured to monitor specifications of a battery, a cell replacement determination unit configured to determine whether a cell has been replaced in a battery pack based on results of the monitoring of the specifications of the battery, and a permanent failure mode entry unit configured to determine whether to enter into a permanent failure mode for the battery pack based on the results of the determination of whether the cell has been replaced.
Absstract of: US20260074291A1
An electrolyte including lithium bis(fluorosulfonyl)imide and lithium hexafluorophosphate, where based on a total weight of the electrolyte, a weight percentage of lithium bis(fluorosulfonyl)imide is a %, and a weight percentage of lithium hexafluorophosphate is b %, where 12<a+b<20 and 0.2<a/b<1.5. An electrochemical apparatus using the electrolyte described in this application can achieve high energy density while also ensuring rate performance at room temperature and high temperature and cycling stability at room temperature and high temperature.
Absstract of: US20260074289A1
An electrolyte for a thick LFP-Li battery system is provided. The electrolyte includes a low-viscosity main salt, at least one lithium-based functional salt, and a solvent including a low viscosity solvent mixed with a cyclic ether solvent. The low-viscosity main salt includes at least one of LiTFSI or a lithium salt.
Absstract of: US20260074287A1
A lithium-ion secondary battery and an electric apparatus are provided. The lithium-ion secondary battery includes an electrolyte. The electrolyte includes alkali metal ions having an ionic radius greater than a radius of lithium ions and a film-forming additive. Based on a total mass of the electrolyte, a mass percentage A of the alkali metal ions and a mass percentage B of the additive satisfy 0.10≤B/A≤6×104.
Absstract of: US20260074285A1
An electrolyte for a lithium secondary battery according to exemplary embodiments includes an additive including a compound having a specific structure, an organic solvent and a lithium salt. Accordingly, a lithium secondary battery including the electrolyte for a lithium secondary battery exhibits improved low-temperature properties such as resistance and capacity retention, and high-temperature stability.
Absstract of: US20260074292A1
A lithium secondary battery 100 of the present disclosure includes: a positive electrode 5 including MnO2; a negative electrode 6 including a negative electrode active material with lithium ions occluded; and an electrolytic solution including a mixed solvent of a cyclic carbonate and a chain carbonate, the electrolytic solution being impregnated into the positive electrode 5 and the negative electrode 6. The negative electrode active material includes, for example, at least one selected from the group consisting of graphite and silicon. The cyclic carbonate includes, for example, at least one selected from the group consisting of ethylene carbonate and vinylene carbonate. The chain carbonate includes, for example, ethyl methyl carbonate.
Nº publicación: US20260074190A1 12/03/2026
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD
Absstract of: US20260074190A1
A negative electrode for a lithium secondary battery, a method for manufacturing a negative electrode for a lithium secondary battery, and a lithium secondary battery including a negative electrode, are provided. The negative electrode includes a negative electrode current collector layer, a first negative electrode active material layer provided on a surface of the negative electrode current collector layer, and a second negative electrode active material layer provided on a surface of the first negative electrode active material layer opposite to a surface of the first negative electrode active material layer facing the negative electrode current collector layer.
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