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1482
resultados
Última actualización
03/04/2026 [07:26:00]
Resultados 150 a 175 de 1482
Resumen de: US20260094894A1
A method for installing a cooling interface on a battery module is disclosed. The method includes partially installing battery cells into individual battery cell frames. Positioning a cooling plate, with adhesive on an upper surface of the cooling plate, atop the partially inserted battery cells, with the surface having the adhesive thereon facing toward the battery cells. Pressing each battery cell into each individual battery cell frame with the cooling plate. As the cooling plate presses the battery cells into the individual battery cell frames, the individual battery cells adjust to the surface of the cooling plate. The disclosure also provides a battery module with a cooling interface. The battery module includes battery cells installed in individual battery cell frames. A cooling plate has a top surface which is non-flat. The cooling plate is connected to the battery cell frames and the battery cells by a uniformly thick layer of adhesive.
Resumen de: US20260094895A1
Provided is an energy storage system including a plurality of battery modules, a cooler configured to supply a cooling fluid to the plurality of battery modules, and a fire-extinguishing tank accommodating a fire-extinguishing agent capable of being supplied to the plurality of battery modules, wherein the plurality of battery modules each include a plurality of cell units which each include a plurality of battery cells arranged in a first direction and which are arranged in a second direction different from the first direction, a cooling plate having a flow path arranged to correspond to an arrangement of the plurality of battery cells, and a fire-extinguishing tube connected to the flow path of the cooling plate and arranged between the plurality of cell units.
Resumen de: US20260094891A1
Disclosed are a thermal management system, a control method therefor, and a vehicle. The thermal management system includes a battery subsystem. The battery subsystem includes a plurality of heat exchange branches disposed in parallel. The heat exchange branches are configured to exchange heat with a battery. The plurality of heat exchange branches disposed in parallel include a pressure regulation sub-branch and a heat exchange sub-branch. The control method includes: obtaining a battery heating signal; and the thermal management system enters a preheating mode, where in the preheating mode, a total flow rate Q1 of the pressure regulation sub-branch is substantially greater than a total flow rate Q2 of the heat exchange sub-branch.
Resumen de: US20260094898A1
A battery pack includes at least one battery module (3010) and two lid modules (3090). The battery module (3010) includes a plurality of battery cells (0020), a cell holder (0050), and a liquid-limiting casing (0080). The casing (0080) is configured as a tubing structure having a peripheral wall (0090) laterally surrounding a space (3032). The peripheral wall (0090) defines a module liquid opening (0094/0095) at a vertical end and includes at least one module-wall-vertical-channel (3098) extending vertically therein and at least one module-wall-lateral-channel (3099) extending laterally therethrough. The battery pack defines a first fluid path connecting a lid liquid channel (3092) and the space (3032) via the module liquid opening, and a second fluid path connecting the lid liquid channel (3092) and the space (3032) via the module liquid opening, the module-wall-vertical-channel (3098), and the module-wall-lateral-channel (3099). This architecture provides synergistic bulk and targeted cooling without external piping.
Resumen de: US20260094808A1
The negative electrode of the secondary battery includes a negative electrode current collector, and a negative electrode active material layer supported by the negative electrode current collector. The negative electrode active material layer includes a first layer existing on a side of a surface layer part and a second layer existing on a side of the negative electrode current collector. The first layer includes first graphite particles, first Si-containing particles, and a first resin binder. The second layer includes second graphite particles, second Si-containing particles, and a second resin binder. The Si content ratio in the first Si-containing particle is smaller than the Si content ratio in the second Si-containing particle. The first Si-containing particle is coated with the first resin binder. Tg of the first resin binder is higher than Tg of the second resin binder. Tg of the first resin binder is more than 100° C.
Resumen de: US20260094803A1
The present disclosure relates to an apparatus for manufacturing an electrode and a method for manufacturing an electrode. An electrode manufacturing apparatus according to one embodiment comprises: a dry electrode composition supply portion; a laminating portion; a first roller and a second roller configured to process the dry electrode composition supplied from the dry electrode composition supply portion into a dry electrode sheet while transferring it to the laminating portion; wherein the first roller and the second roller have different diameters from each other, and wherein, in the laminating portion, the dry electrode sheet can be laminated on a current collector supplied from the outside.
Resumen de: US20260094804A1
According to a method of manufacturing an electrode for lithium secondary battery according to the present disclosure, a current collector is heated through a heating unit, and the current collector and a solid-state electrode composition are rolled through a rolling roller to form an electrode active material layer on at least one surface of the current collector.
Resumen de: US20260094807A1
A cathode for a secondary battery according to the present disclosure includes: a cathode current collector, and a first cathode active material layer and a second cathode active material layer sequentially stacked on at least one surface of the cathode current collector. The first cathode active material layer includes a lithium transition metal oxide. The second cathode active material layer includes a lithium metal phosphate, a particulate conductive material and a fibrous conductive material. The ratio of the content of the fibrous conductive material to that of the particulate conductive material, based on the total weight of the second cathode active material layer, is 2 to 7.
Resumen de: US20260094805A1
According to a method for manufacturing an electrode for a lithium secondary battery of the present disclosure, a solid-state electrode composition that includes an electrode active material and a binder including a rubber-based copolymer is prepared, a current collector is heated using a heating unit, and the current collector and electrode composition are roll-pressed using a rolling roller to form an electrode active material layer on at least one surface of the current collector. The rubber-based copolymer includes a butadiene-derived repeating unit, and the ratio of the molar amount of the butadiene-derived repeating unit to the total molar amount of repeating units in the rubber-based copolymer is 0.3 to 0.98.
Resumen de: US20260094816A1
Provided is a technique to suppress a swell of the negative electrode. In the negative electrode disclosed herein, a negative electrode active material layer includes a first layer at a negative electrode current collector side and a second layer at a surface layer side. The first layer contains first Si-containing particles. The second layer contains second Si-containing particles. A Si content rate of the second Si-containing particles is smaller than a Si content rate of the first Si-containing particles. Each of the first Si-containing particles and the second Si-containing particles include a LiF coating layer. A second peak intensity ratio relating to a LiF of the second Si-containing particles is smaller than a first peak intensity ratio relating to the LiF of the first Si-containing particles. A difference between the first peak intensity ratio and the second peak intensity ratio is 0.050 to 1.00.
Resumen de: US20260094903A1
A battery includes a wound electrode assembly having a first electrode, a second electrode, and a separator between the first electrode and the second electrode, a case accommodating the electrode assembly, the case including an opening on one side, a cap assembly sealing the opening, an insulating sheet between the cap assembly and the electrode assembly, and a lithium metal layer on the insulating sheet facing the cap assembly.
Resumen de: US20260094820A1
A cathode material, a preparation method thereof, and a battery provided. The cathode material is a nickel-lithium cobalt oxide based composite oxide including a core and a surface reconstruction layer arranged outside the core, where the surface reconstruction layer is a region etched away by dissolving the cathode material with 100 times diluted aqua regia for 30 minutes, with an ambient temperature controlled to be 300° C. during dissolution, and the core is a remaining region after the surface reconstruction layer is etched away from the cathode material, and where the core has a Li molar content of m1, the surface reconstruction layer has a Li molar content of m2, and 1.3≤m2/m1≤4.0. The cathode material provided is improved stability of crystal structure while having high capacity, thereby improving cycle stability of the cathode material and improving withstand voltage of the cathode material.
Resumen de: US20260094896A1
A battery pack is provided that includes: a case including opening portions that allow air outside the case to flow into an inside of the case; and a plurality of battery cells housed in the case and arranged with a gap between each other, the gap including a plurality of gaps, the opening portions being provided facing the gaps.
Resumen de: US20260094817A1
A negative electrode containing Si—C composite particles and graphite particles, and capable of suppressing capacity degradation when a secondary battery is repeatedly charged and discharged is provided. The negative electrode of a secondary battery of the present disclosure includes a negative electrode current collector, and a negative electrode active material layer supported by the negative electrode current collector. The negative electrode active material layer contains graphite particles and Si—C composite particles as a negative electrode active material. Each of the Si—C composite particles includes a porous skeleton made of carbon, and Si-containing particles located in voids of the porous skeleton. A coating including LiF is formed on at least a part of an outer surface of each of the Si—C composite particles.
Resumen de: US20260094883A1
A battery management system having a plurality of backup communication main units, and an aircraft are provided. In the battery management system, a plurality of independent power battery assemblies are provided, and the design of using a plurality of backup communication main units is used; and considering the hardware failure probability and the redundancy margin, some of all battery management units are selected as backup communication main units, thereby improving the fault tolerance rate and reliability of aircraft communication, ensuring that the aircraft reliably acquires battery data required by safe flight, improving the reliability of aircraft power supply management, and guaranteeing the flight safety of the aircraft.
Resumen de: US20260094860A1
An electrode assembly of the battery cell is of a jelly-roll structure, the electrode assembly includes a negative electrode plate; along a winding direction of the electrode assembly, an elongation at break of the negative electrode plate is X0; along an extension direction of a winding axis of the electrode assembly, an elongation of the negative electrode plate is X1; and along a thickness direction of the electrode assembly, an expansion rate of the electrode assembly is X2, 0≤X0−(X1+X2)≤2%.
Resumen de: US20260094844A1
A multi-layer battery assembly comprising a cathode current collector layer, a cathode active material layer, a solid-state electrolyte layer, and an anode current collector layer. The cathode active material layer is positioned between and in contact with the cathode current collector layer and the solid-state electrolyte layer. The solid-state electrolyte layer is positioned between and in contact with the cathode active material layer and the anode current collector layer. The cathode active material layer comprises a tapered edge extending between the cathode current collector layer and the solid-state electrolyte layer.
Resumen de: US20260094842A1
A current collector that includes a current collector body and a polymer layer formed on the current collector body, wherein the polymer layer can include a conductive polymer and a conductive material. The current collector can exhibit excellent electrical properties, including low resistance, in a normal state, and can ensure stability through an increase in resistance, and the like, in an abnormal state. Also provided are uses of the current collector.
Resumen de: US20260094827A1
A battery comprises a positive electrode plate and a negative electrode plate. The negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer located on a surface on at least one side of the negative electrode current collector. The negative electrode active material layer comprises a negative electrode active material, and the negative electrode active material comprises graphite particles and silicon-carbon particles. The graphite particles comprise first graphite particles and second graphite particles. The particle size Dv50 of the first graphite particles is greater than that of the second graphite particles. The positive electrode plate comprises a positive electrode active material, and the positive electrode active material comprises a material with a chemical formula of LiaNixCoyMnzMkO2. The battery of the present disclosure can have high energy density, low expansion rate and excellent cycling performance.
Resumen de: US20260094858A1
Disclosed is method for manufacturing power source unit by assembling battery unit by: arranging first terminal (FT) and second terminal (ST) on printed circuit board (PCB) on opposite edges of PCB; applying first adhesive (FA) on PCB between FT and ST; attaching battery with FA to PCB; attaching first electrode of battery to FT and second electrode to ST; and attaching cap over portion of battery; inserting battery unit in first mould half (FMH); removably attaching second mould half (SMH) and FMH to form a manufacturing mould; clamping protrusion between FMH and SMH; filling volume between battery unit and walls of manufacturing mould to form damping element; curing one moulding material; and separating FMH and SMH to obtain manufactured power source unit.
Resumen de: US20260094861A1
A pouch-type battery cell pressing member includes: a first pressing part including a first base plate, a first elastic member having a first end coupled to the first base plate, and a plurality of first contact portions coupled to a second end of the first elastic member, and a second pressing part including a second base plate, a second elastic portion having a first end coupled to the second base plate, and a plurality of second contact portions coupled to a second end of the second elastic portion. The plurality of first contact portions and the plurality of second contact portions define a first region where pressing surfaces are substantially parallel to the first base plate and the second base plate, and a second region where pressing surfaces are formed in an inclined shape with respect to the first base plate and the second base plate.
Resumen de: US20260094821A1
A lithium secondary battery includes: a positive electrode; a separator; and a negative electrode. The positive electrode includes a positive electrode active material and a positive electrode conductive material. The negative electrode includes a negative electrode active material and a negative electrode conductive material. The positive electrode active material includes a lithium composite transition metal compound including nickel (Ni) and cobalt (Co), and the negative electrode active material includes silicon oxide, artificial graphite, and natural graphite. The positive electrode conductive material includes a particulate conductive material, a linear conductive material, and a planar conductive material, and the negative electrode conductive material includes a particulate conductive material, a linear conductive material, and a planar conductive material.
Resumen de: US20260094862A1
To provide an electrolytic solution for a lithium metal secondary battery capable of suppressing an increase in resistance of the lithium metal secondary battery, suppressing gas generation, and suppressing an increase in thickness of the negative electrode, when 1,2-dimethoxyethane (DME) is used as the solvent. An electrolytic solution for a lithium metal secondary battery comprising an electrolyte salt, an organic solvent, and at least one first additive, the electrolyte salt comprising lithium bis-fluorosulfonylimide (LiFSI), the organic solvent comprising 1,2-dimethoxyethane (DME), the at least one first additive being at least any one of N,N-dimethyltrifluoromethane-sulfonamide (DMTMSA) or N,N-dimethylsulfamoyl fluoride (DMSF), wherein the electrolytic solution for a lithium metal secondary battery comprises the first additive in an amount of 0.2 parts by mass or more when a total mass of the electrolyte salt and the organic solvent is 100 parts by mass.
Resumen de: US20260094822A1
A positive electrode active material for secondary batteries which is one example of the embodiment comprises a first lithium-nickel composite oxide having a volume-based D50 value of 8 μ82 m to 30 μm inclusive and a second lithium-nickel composite oxide having a volume-based D50 value of 6 μm or less. At least one component selected from Ca and Sr is present on the surfaces of primary particles constituting the second lithium-nickel composite oxide. The total content of Ca and Sr in the second lithium-nickel composite oxide is larger than that in the first lithium-nickel composite oxide.
Nº publicación: US20260094859A1 02/04/2026
Solicitante:
MURATA MFG CO LTD [JP]
MURATA MANUFACTURING CO., LTD
Resumen de: US20260094859A1
In a secondary battery, a first end face of an electrode wound body and a first electrode current collector plate are joined to each other by one or more first joint parts. The one or more first joint parts each have a meander shape in a plan view. The meander shape includes multiple first linear parts and multiple first turning parts. In each of the one or more first joint parts, a length in a winding direction of the electrode wound body from an a-th one to an (a+1)th one of the first turning parts counted from a winding center of the electrode wound body is longer than a length in the winding direction from a first one to a second one of the first turning parts, of corresponding one of the first joint parts, counted from the winding center.
BOPI
Sede Electrónica
