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LIQUID COOLING DEVICE

Resumen de: US2025290712A1

A projection is on the sidewall of a cooling channel. When the outer side of a liquid cooling plate is squeezed, the projection between the sidewalls of the cooling channel supports the sidewalls.

VEHICLE HAVING AUTOMATIC VENT GAS DISCHARGE DOORS

Resumen de: US2025293387A1

A door is connected to a skid plate or belly pan or vehicle at a location that overlaps an outlet port formed in the skid plate or belly pan. The door is movable from a closed position that obstructs the outlet port to an open position where the door does not obstruct the outlet port by an actuator that is in communication with a controller, wherein the controller is configured to communicate an instruction to the actuator to move the door from the closed position to the open position based on a signal indicative of a temperature or a pressure within a housing of a battery pack received from at least one sensor positioned in the housing.

LIQUID COMPOSITION, LIQUID DISCHARGER, AND LIQUID DISCHARGE METHOD

Resumen de: US2025293229A1

A liquid composition includes an active material and a dispersion medium. ηA is a viscosity of the liquid composition at a shear rate of 10−1 s−1 and the ηA is equal to or greater than 1000 mPa·s. ηB is a viscosity of the liquid composition at a shear rate of 105 s−1and the ηB is equal to or smaller than 100 mPa·s.

NEGATIVE ELECTRODE, SOLID STATE BATTERY AND MANUFACTURING METHOD OF LAMINATE

Resumen de: US2025293264A1

A negative electrode of a solid state battery includes: a negative electrode mixture layer formed by filling pores of a metal porous body with a negative electrode mixture containing a negative electrode active material; and a void layer including a portion containing a solid electrolyte and a portion having voids in the pores of the metal porous body on a solid electrolyte layer side in a thickness direction of the metal porous body pressurized in the thickness direction, wherein a specific surface area of the metal porous body before the pressurization is 500 m2/m3 or more and 6000 m2/m3 or less.

FLUOROPLYMER BINDER FOR LITHIUM-ION SECONDARY BATTERY CATHODE

Resumen de: US2025293258A1

A fluoropolymer binder composition is provided for use in a lithium-ion secondary battery cathode, containing tetrafluoroethylene polymer and elastomeric fluoropolymer. Cathode compositions are also provided containing this fluoropolymer binder composition together with cathode active particles and conductive carbon. The tetrafluoroethylene polymer is generally a high molecular weight non-melt fabricable tetrafluoroethylene homopolymer and modified tetrafluoroethylene homopolymer. The elastomeric fluoropolymer is generally a vinylidene fluoride elastomeric fluoropolymer. The cathode composition is formed by a process free from solvent, by dry mixing the fluoropolymer binder, cathode active and conductive carbon, and applying a shear force, whereby the tetrafluoroethylene polymer is fibrillated. The cathode compositions have fluoropolymer binder homogeneously dispersed in the major component cathode active, and have elasticity such that thin films of the cathode compositions can be formed into a cylindrical shape without fracture, enabling their utility as lithium-ion battery cathode electrode films.

NON-AQUEOUS ELECTROLYTE SOLUTIONS

Resumen de: US2025293306A1

Electrolyte compositions for secondary batteries having a metal anode are provided. The compositions include an electrolyte salt of an alkali metal, an alkaline earth metal, zinc, or aluminum; at least one solvent which solubilizes the electrolyte salt; and up to 25 wt. % of a selected non-polar additive. The solvent is selected from cyclic sulfones, cyclic sultones, cyclic ethers, partially fluorinated sulfonamides, fluorinated solvents and glymes. The nonpolar additive is selected from aromatic hydrocarbons, partially fluorinated aromatic hydrocarbons, fluorinated monoethers, partly fluorinated polyethers, fluorinated phosphate esters and fluorinated linear sulfones. Multiple combinations of metal salts, solvents and nonpolar additives having a coulombic efficiency of with respect to plating and stripping of the metal of at least 90% are provided.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US2025293312A1

The present disclosure provides a nonaqueous electrolyte secondary battery including a multilayer electrode body and a battery case. The battery case includes a lower surface, and the lower surface includes a gas exhaust valve. The multilayer electrode body includes a pair of flat surfaces, and a lower end surface and an upper end surface. A tape is attached to the multilayer electrode body so as to link between the pair of flat surfaces. The lower end surface and the upper end surface of the multilayer electrode body are covered with the tape asymmetrically.

ALL-SOLID-STATE BATTERY, MANUFACTURING EQUIPMENT OF THE SAME, AND MANUFACTURING METHOD OF THE SAME

Resumen de: US2025293309A1

An exemplary all-solid-state battery includes a positive electrode in which a positive electrode layer may be provided on both surfaces of a positive electrode current collector layer, a pair of solid electrolyte layers disposed on the both surfaces of the positive electrode, and a negative electrode disposed in each of the solid electrolyte layers and provided with a negative electrode layer on both surfaces of a negative electrode current collector layer, where an outer end portion of the solid electrolyte layer and an outer end portion of the negative electrode disposed on the same line in a thickness direction, where an outer end portion of the positive electrode have a first distance difference shorter than the outer end portion of the solid electrolyte layer, and where a gap of outer end portions of the pair of solid electrolyte layers and a side surface of the outer end portion of the positive electrode form a space between each other in which a gasket is interposed.

ELECTRODE STACK AND METHOD FOR MANUFACTURING ELECTRODE STACK

Resumen de: US2025293310A1

The electrode stack of the present disclosure includes a first current collector layer, a first electrode active material layer, a solid electrolyte layer, a second electrode active material layer, and a second current collector layer in this order. The electrode stack of the present disclosure has a side surface cut in a direction that is not the stacking direction of the electrode stack. The method of the present disclosure for manufacturing an electrode stack includes the following steps: (a) providing a preliminary stack 20 in which a first current collector layer, a first electrode active material layer, a solid electrolyte layer, a second electrode active material layer, and a second current collector layer are stacked in this order; and (b) cutting the side of the preliminary stack in a direction that is not the stacking direction of the electrode stack.

ELECTRODE ASSEMBLY AND ALL-SOLID STATE BATTERY INCLUDING THE SAME

Resumen de: US2025293308A1

For an electrode assembly having an optimized irregularity structure, an all-solid state battery including the same, a manufacturing method of the electrode assembly, and a manufacturing method of the all-solid state battery, the electrode assembly is manufactured through a wet-wet coating method and has an appropriate irregularity. Thus, exposure of a solid electrolyte contained in an electrode active material layer to moisture is minimized. As a binder migrates to a solid electrolyte layer, a binder distribution within the electrode active material layer is uniform, resulting in excellent durability and electrochemical performance.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: WO2025189316A1

A battery cell (100), a battery (1100), and an electrical device. The battery cell (100) comprises a casing (110), an electrode assembly (120), a first electrode terminal (131) and a second electrode terminal (132), wherein the electrode assembly (120) is arranged in the casing (110); the first electrode terminal (131) is electrically connected to the electrode assembly (120); the second electrode terminal (132) is electrically connected to the electrode assembly (120); and the first electrode terminal (131) and the second electrode terminal (132) have different polarities for outputting or inputting electric energy. The casing (110) is of a prismatic structure; the casing (110) is provided with a first side wall (113) and a second side wall (114) arranged opposite each other in the axial direction, the first side wall (113) and the second side wall (114) being square, and at least one of the first electrode terminal (131) and the second electrode terminal (132) being arranged on the first side wall (113) or the second side wall (114). The casing (110) is of a quadrangular structure; thus, the battery cell (100) has a square and regular shape, allowing flexible grouping of battery cells (100), thereby meeting the placement requirements of most cases (200), and also enabling better utilization of the space in a case (200), improving the volumetric energy density of the battery (1100).

WELDING APPARATUS, WELDING METHOD, AND WELDING SYSTEM

Resumen de: WO2025189550A1

A welding apparatus configured to weld to a top cover (20) adapter tabs (101) connected to bare cells (10). The welding apparatus comprises a welding mechanism (1), a positioning mechanism (2) and a distance-measuring mechanism (3). The welding mechanism (1) comprises laser heads (11). The positioning mechanism (2) comprises a first positioning seat (21) for the placement of the top cover (20) and second positioning seats (22) for the placement of the bare cells (10), and the positioning mechanism (2) can move closer to or away from the welding mechanism (1) in a forward/backward movement direction. The distance-measuring mechanism (3) is disposed on the side of the positioning mechanism (2) away from the welding mechanism (1) in the forward/backward movement direction, and the distance-measuring mechanism (3) is configured to measure the distance between the distance-measuring mechanism (3) and the welding mechanism (1) in the forward/backward movement direction. By means of a distance measurement result of the distance-measuring mechanism (3), the welding apparatus can conduct welding only after the positioning mechanism (2) is located in a target welding position, such that the displacement of the positioning mechanism (2) is more reliable, making the defocusing amount more stable and the welding quality better. The present disclosure further relates to a welding method and a welding system.

ELECTROCHEMICAL DEVICE AND ELECTRONIC APPARATUS

Resumen de: WO2025189552A1

An electrochemical device, which comprises a case (1), an electrolyte contained in the case (1), and at least two bare cells (2) that are accommodated in the electrolyte and stacked and electrically connected, wherein two adjacent stacked bare cells (2) are separated by a spacer (3), and maximum misalignments L1 and L2 are each formed at one end between two adjacent stacked bare cells (2); each bare cell (2) comprises an anode sheet (25), a cathode sheet (26) and a separator located therebetween that are sequentially wound, the portion of the separator extending beyond the head of the cathode sheet (26) is A, and the portion of the separator extending beyond the tail of the cathode sheet (26) is B; and when A≤1.5mm and B≤1mm, the maximum misalignments L1 and L2 are required to meet: L1≤A and L2≤B. Restricting misalignment parameters between the bare cells (2) ensures the electrical performance of the electrochemical device, thereby improving the safety and reliability. Furthermore, further disclosed is an electronic apparatus comprising the electrochemical device.

SYSTEMS AND METHODS FOR INITIATING POWER GENERATION

Resumen de: US2025293516A1

Systems, methods, and other embodiments described herein relate to safely activating a fuel cell (FC) within a generator. In one embodiment, a method includes initiating a test for sensitive systems of a generator during a standby status using backup power including a battery. The method also includes powering an FC and a direct current (DC) converter on a first bus within the generator by increasing an operational voltage on a second bus using the battery. The method also includes, upon successfully completing the test and powering the FC and the DC converter, energizing a load inverter by switching power flow from the battery to the FC after completing a non-critical sequence that controls support systems of the generator for a generating status, wherein the DC converter stabilizes voltage energy between the FC directly connected on the first bus above a minimum voltage and output energy to the second bus.

BATTERY PACK

Resumen de: US2025293537A1

A battery pack includes a first battery rack, a first power conversion circuit, a second battery rack, and a battery controller. The first battery rack is connected between a first pack terminal and a second pack terminal of the battery pack. The first power conversion circuit includes a first terminal, a second terminal, a third terminal, and a fourth terminal that is connected to the second pack terminal, and the first power conversion circuit is configured to bidirectionally convert a first conversion voltage between the first terminal and the second terminal into a second conversion voltage between the third terminal and the fourth terminal. The second battery rack is connected between the first pack terminal and the third terminal of the first power conversion circuit. The battery controller is configured to control the first power conversion circuit to adjust a level of the second conversion voltage.

SYSTEMS AND METHODS FOR FAIL-SAFE BATTERY PROTECTION INDEPENDENT FROM BATTERY MANAGEMENT SYSTEM

Resumen de: US2025293534A1

Methods and systems for charging a battery string while protecting against overcharging. One system includes: a pair of disconnect devices; a power distribution bus which is electrically connected to a battery string via the disconnect devices; a battery charger connected to supply battery power to the power distribution bus for charging the battery string; a module monitoring unit configured to sense individual battery cell voltages during charging; a first processor configured to activate one disconnect device to open when the sensed individual battery cell voltages indicate overcharging; a plurality of sensors connected to sense a full-string voltage measured across the battery string and first and second half-string voltages measured across first and second half-strings of the battery string; and a second processor connected to receive sensor data during charging. The second processor is configured to independently activate the second disconnect device to open when the sensor data indicates continued overcharging.

BATTERY CHARGE CONTROL OPTIMIZATION FOR EXTENDED LIFE WITH MACHINE

Resumen de: US2025293536A1

Techniques are described for using machine learning to extract physics-based cell model parameters from battery charge data provided by the battery module of the battery management system. This data may be processed via machine learning techniques in order to periodically update or adapt a physics-based model that may capture cell electrical dynamics and degradation mechanisms. The techniques may utilize a “digital twin” to adaptively charge the battery while preserving the life of the cells.

SULFIDE-BASED SOLID ELECTROLYTE WITH IMPROVED DUCTILITY AND FRACTURE STRENGTH

Resumen de: US2025293294A1

A sulfide-based solid electrolyte with an argyrodite crystal structure is represented by the formula Li6−aPS5−aX1+a, where X is one or more halogen elements selected from Cl, Br, I, and their combinations, and ‘a’ ranges from 0 to 0.5. The halogen elements are doped at 4a, 4c sites, or both within the argyrodite structure. Variations of this composition include Li5.5PS4.5X1.5, where X can be single or mixed halogens, such as Cl, Br, I, or combinations thereof. The solid electrolyte may be synthesized using a ball milling process to ensure uniform halogen distribution and achieve a disordered crystal structure that enhances ductility and fracture strength. Mechanical properties such as formation energy, bulk modulus, shear modulus, Young's modulus, and Poisson's ratio are optimized for improved performance. Additionally, this electrolyte can be used in lithium-ion batteries, which are suitable for vehicle applications.

SOLID-STATE BATTERY

Resumen de: US2025293296A1

Provided is a solid-state battery including: an electrode laminate in which a negative electrode, a solid electrolyte layer, and a positive electrode are sequentially laminated, wherein the solid electrolyte layer includes a first solid electrolyte layer and a second solid electrolyte layer, the first solid electrolyte layer being disposed on a side closer to the negative electrode, the second solid electrolyte layer being disposed on a side closer to the positive electrode, the positive electrode includes a positive electrode current collector and a positive electrode mixture layer, an inclined surface is formed at least at one end portion of the positive electrode mixture layer, and when the electrode laminate is viewed in a top view from a lamination direction of the electrode laminate, an outer peripheral part of the first solid electrolyte layer is located outward of an outer peripheral part of the positive electrode mixture layer.

BATTERY MODULE AND METHOD OF MANUFACTURING THE SAME

Resumen de: US2025293348A1

A battery module and a method of manufacturing a battery module are disclosed. A battery module includes a plurality of battery cells, a heat-insulating sheet between adjacent battery cells of the plurality of battery cells to block thermal energy transfer between the adjacent battery cells, and a fixing member to fix the heat-insulating sheet between the adjacent battery cells.

BATTERY THERMAL MANAGEMENT MEMBER

Resumen de: US2025293351A1

Battery thermal management materials, compositions and systems are provided. Exemplary embodiments include a battery thermal management member. The battery thermal management member can include a heat protection layer and a resilient layer. Also provided are methods of preparing or manufacturing such battery thermal management members. In certain embodiments, the heat protection layer can include mica, microporous silica, ceramic fiber, mineral wool, aerogel or combinations thereof.

METAL-CONTAINING ELECTROLYTE AND MANUFACTURE METHOD THEREOF

Resumen de: US2025293297A1

A metal-containing electrolyte is provided in some embodiments of the present disclosure, including a structure of formula 1 as follows, in which “R” is hydrogen or an alkyl group including 1 to 20 carbon atoms; “M” is a metal element; “a” is an integer from 5 to 50; “b” is an integer from 2 to 100; and “z” is an integer from 0 to 10;

BATTERY CELL, BATTERY AND ELECTRICAL DEVICE

Resumen de: WO2025189312A1

Provided in the present application are a battery cell, a battery and an electrical device. The battery cell comprises a casing and an electrode assembly, wherein the casing is provided with a wall portion. The electrode assembly is accommodated in the casing, and the electrode assembly and the wall portion are arranged in a first direction. The wall portion comprises a pressure relief portion and a first supporting portion, the pressure relief portion being provided with a weak portion and configured to crack along at least part of the weak portion during pressure relief of the battery cell. The first supporting portion surrounds the pressure relief portion. In the first direction, the first supporting portion has a first surface closest to the electrode assembly, and the pressure relief portion has a second surface closest to the electrode assembly, the first surface being closer to the electrode assembly than the second surface. When displacement occurs, the electrode assembly is less likely to exert external force on the pressure relief portion, thereby reducing the risk of premature cracking of the weak portion. The first supporting portion surrounding the pressure relief portion can improve the protective effect on the pressure relief portion, and can also reduce the reactive force on the electrode assembly, such that the electrode assembly is not prone to damage, thereby improving the reliability of the battery cell.

GRAPHENE-METAL ELECTRODES, AND METHODS OF PRODUCING THE SAME

Resumen de: WO2025189293A1

Embodiments described herein relate to methods of producing electrodes. In some aspects, a method can include mixing a plurality of layered particles with a plurality of non-layered particles. The method further includes milling the plurality of layered particles and the plurality of non-layered particles in a controlled environment to form a composite. The method further includes forming the composite into an electrode. In some embodiments, the controlled environment has a pressure of no more than about 0.3 bar absolute. In some embodiments, the controlled environment can include at least about 99.9 vol% of an inert gas. In some embodiments, the plurality of layered particles can include graphite particles. In some embodiments, the plurality of non-layered particles can include silicon particles.

COMPOSITE COPPER-BASED CURRENT COLLECTOR AND PREPARATION METHOD THEREFOR, AND LITHIUM ION BATTERY

Nº publicación: WO2025189563A1 18/09/2025

Solicitante:

JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD [CN]
\u6C5F\u9634\u7EB3\u529B\u65B0\u6750\u6599\u79D1\u6280\u6709\u9650\u516C\u53F8

Resumen de: WO2025189563A1

A composite copper-based current collector and a preparation method therefor, and a lithium ion battery, relating to the technical field of battery materials. The composite copper-based current collector comprises: a polymer substrate film; and a modified copper layer arranged on at least one surface of the polymer substrate film, wherein the modified copper layer comprises a C-Cu heterogeneous microstructure with dispersed carbon quantum dots. Carbon quantum dots are introduced, and the carbon quantum dots are uniformly dispersed in copper grains and at copper grain boundaries, thereby forming the C-Cu heterogeneous microstructure with dispersed carbon quantum dots; the presence of the carbon quantum dots can exert resistance to grain coarsening, thereby inhibiting grain coarsening and promoting grain refinement, improving the tensile strength of the composite copper-based current collector; the C-Cu heterogeneous microstructure can enhance dislocation storage capacity and strengthen strain hardening, thereby improving the elongation at break of the composite copper-based current collector; and improvements of the tensile strength and the elongation at break jointly enhance mechanical properties of the current collector, and improve the stability of the current collector in the battery.