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1190
resultados
Última actualización
25/10/2026 [07:33:00]
Resultados 950 a 975 de 1190
Resumen de: US20260321872A1
0000 The battery cell includes a case, a pressure relief mechanism, and an electrode assembly. The case has a first wall and a second wall that are adjacent and connected to each other. The pressure relief mechanism is provided on the first wall. The electrode assembly has a first portion and a second portion sequentially arranged along a first direction, the first portion and the second portion each include multiple anode electrode sheet layers and multiple cathode electrode sheet layers, the multiple anode electrode sheet layers and the multiple cathode electrode sheet layers are alternately stacked one-to-one along the first direction, the second portion is disposed between the first portion and the second wall, a distance from the cathode electrode sheet layer of the second portion to the first wall is greater than a distance from the cathode electrode sheet layer of the first portion to the first wall.
Resumen de: US20260321739A1
Disclosed are a negative electrode for an all-solid-state battery and an all-solid-state battery including the same, the negative electrode for an all-solid-state battery including a current collector having a groove formed therein; a metal filled inside the groove; and a carbon layer located on one surface of the current collector to cover the groove.
Resumen de: US20260321641A1
0000 A secondary battery includes a negative electrode sheet, where the negative electrode sheet includes a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector, the negative electrode film layer includes a negative electrode active material and a conductive agent, the negative electrode active material includes a graphite material, and the tap density of the graphite material is greater than or equal to 1.2 g/cm<3>; and based on the total mass of the negative electrode film layer, the mass percentage of the conductive agent is greater than or equal to 1.6%.
Resumen de: US20260321635A1
0000 A secondary battery includes a negative electrode sheet, where the negative electrode sheet includes a negative electrode current collector and a negative electrode film layer arranged on at least one surface of the negative electrode current collector, the negative electrode film layer includes a negative electrode active material, a compaction density of the negative electrode film layer is greater than or equal to 1.45 g/cm<3>, a liquid absorption rate of the negative electrode active material is 30 ml/100 g to 60 ml/100 g, and a tortuosity of the negative electrode sheet is less than or equal to 6.
Resumen de: US20260321662A1
0000 A secondary battery includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer formed on at least one surface of the negative electrode current collector. The negative electrode film layer includes a graphite material. The graphite material has a tap density of 1.2 g/cm<3 >to 1.4 g/cm<3>. In addition, a difference between a compaction density of the negative electrode film layer and the tap density of the graphite material is not less than 0.15 g/cm<3>.
Resumen de: US20260321581A1
The present disclosure provides a secondary battery and an electric apparatus. The secondary battery comprises a negative electrode sheet including a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector. The negative electrode film layer includes a first region adjacent to the negative electrode current collector and a second region adjacent to a surface away from the negative electrode current collector. ID/IG of an active material in the second region is greater than ID/IG of an active material in the first region. ID/IG is a ratio of a D peak intensity to a G peak intensity obtained by Raman mapping, where ID represents a D peak intensity at 1350±100 cm1 and IG represents a G peak intensity at 1580±100 cm−1.
Resumen de: AU2024446226A1
An assembly method for a battery cell, and a battery cell, a battery and an electric device, which belong to the technical field of batteries. The battery cell comprises a casing component, a terminal post component mounted to the casing component, and an electrode component accommodated in the casing component and connected to the terminal post component, wherein the casing component comprises a casing body and a casing cover, the casing body has an opening, the casing cover seals the opening, and the casing body or the casing cover comprises a first casing wall. The assembly method comprises: connecting an electrode component to a terminal post component; and mounting to a first casing wall the terminal post component connected to the electrode component.
Resumen de: US20260316198A1
A battery cell includes a case, and an end cover which is arranged at one end of the case; a joint of the case and the end cover is provided with a first connecting seam and a second connecting seam which are arranged along a circumferential direction of the case; the end cover welding apparatus includes a material conveying assembly and a welding assembly, in which, the material conveying assembly includes a conveying line. The first clamp and the second clamp are arranged at an interval on the same conveying line. The welding assembly is arranged along the conveying line and is configured to weld the first connecting seam when the first clamp with the battery cell fixed is conveyed to the welding assembly, and is also configured to weld the second connecting seam when the second clamp with the battery cell fixed is conveyed to the welding assembly.
Resumen de: US20260321645A1
0000 A silicon-carbon composite material, a preparation method, a secondary battery, and a power consuming apparatus. The silicon-carbon composite material includes an inner region and an outer region. The inner region mainly includes silicon-containing material particles, and the outer region mainly includes carbon-based material particles. The silicon-carbon composite material has an excellent gram capacity, and can enhance the high-temperature storage performance and cycling stability of a battery.
Resumen de: US20260321639A1
A secondary battery includes a negative electrode plate; the negative electrode plate includes a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector and including a negative electrode active material; the negative electrode active material includes a first carbon-based material and a second carbon-based material; the first carbon-based material includes artificial graphite in the form of secondary particles; the second carbon-based material includes an external region and an internal region located on the inner side of the external region; and the external region refers to a region formed by extending from the surface of a particle of the second carbon-based material to the interior of the particle by a distance of 2.5 μm.
Resumen de: US20260317881A1
0000 A method for the surface treatment of a corrosion-resistant nickel-based alloy and the resulting surface structure of the treated alloy is disclosed. The method includes immersing a nickel-based alloy in a first neutral or alkaline solution to remove surface contaminants, followed by immersing the cleaned alloy in a second neutral or alkaline solution to form functional groups on its surface. Subsequently, a low-temperature heat treatment is performed to form a passivation layer on the surface of the nickel-based alloy. The passivation layer has a surface roughness of less than 0.04 microns and a thickness ranging from 5 nanometers to 200 nanometers. The resulting corrosion-resistant nickel-based alloy comprises a substrate made of the nickel-based alloy and a passivation layer established on at least one surface of the substrate. The nickel content of the alloy is greater than 50%, and the alloy also contain additional metallic components such as chromium and manganese.
Resumen de: US20260321648A1
The present invention provides a positive electrode active material capable of improving battery capacity and output characteristics of a non-aqueous electrolyte secondary battery. This non-aqueous electrolyte secondary battery comprises a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode contains a lithium transition metal composite oxide as a positive electrode active material, and a sulfonic acid compound represented by general formula I. The lithium transition metal composite oxide contains 50 mol % or more of Ni with respect to the total number of moles of metal elements excluding Li. The negative electrode contains a negative electrode active material and contains 200 ppm by mass or more of S with respect to the total mass of the negative electrode active material. (In the formula, A represents a group 1 element or a group 2 element, R represents a hydrocarbon group, and n is 1 or 2.)
Resumen de: US20260321915A1
0000 In a power storage cell, a first electrode includes: a current-collector foil; and an electrode material partially coating the current-collector foil. The current-collector foil has a coated portion and an uncoated portion. The coated portion is coated with the electrode material. The uncoated portion is not coated with the electrode material, and is exposed to one side of an axial direction of the wound electrode assembly and extends in a winding direction of the wound electrode assembly. The uncoated portion has bent portions bent toward a radial direction of the wound electrode assembly, and a folded portion formed by folding a region of the uncoated portion between adjacent bent portions among the bent portions.
Resumen de: US20260321772A1
A temperature difference of the battery assembly is acquired, the temperature difference is a difference between a first temperature of a first temperature zone and a second temperature of a second temperature zone. When the temperature difference is greater than a preset threshold, a valve opening degree control instruction is generated according to a first area of the first temperature zone and a second area of the second temperature zone, the valve opening degree control instruction causes at least one of a first adjustment of a first opening degree of a first valve that controls a first flow rate of working medium flowing into a first heat exchange member in the first temperature zone, and a second adjustment of a second opening degree of a second valve that controls a second flow rate of working medium flowing into a second heat exchange member in the second temperature zone.
Resumen de: US20260321757A1
An embodiment of the present disclosure provides an inspection method for an all-solid-state rechargeable battery, including an inspection main body mounted with a plurality of all-solid-state cells in which a unit cell including a positive electrode, a negative electrode, and a solid electrolyte layer is stacked; a pressurizer installed in the inspection main body and configured to pressurize the all-solid-state cells; a pressure measurer installed in the pressurizer and configured to measure the pressure applied to the all-solid-state cells; and a quality determiner configured to determine whether an all-solid-state cell is good or bad using a pressure difference at each position of the pressure measured by the pressure measurer.
Resumen de: US20260321703A1
0000 A battery insertion device comprises a machine frame, a bearing mechanism arranged on the machine frame and used for bearing a bottom cover and an electrode assembly supported above the bottom cover, and an insertion mechanism arranged on the machine frame and comprising a case fixing mechanism and a tab part guide mechanism. The case fixing mechanism is used for fixing a case. The tab part guide mechanism and the case fixing mechanism both can get close to or away from the bearing mechanism. The case fixing mechanism is configured to sleeve the case onto the outer side of the electrode assembly by means of an open end when moving close to the bearing mechanism. The tab part guide mechanism is configured to guide a tab part to penetrate out of an accommodating cavity through a through hole when the case is sleeved on the electrode assembly.
Resumen de: US20260321677A1
A composite current collector, an electrode plate, a secondary battery, and a power consuming apparatus are provided. The composite current collector includes a support layer, and a binding layer and a conductive layer that are sequentially stacked on at least one side surface of the support layer, where the conductive layer includes a conductive layer body and a first protrusion portion, and the first protrusion portion protrudes in a thickness direction of the conductive layer and is embedded in the binding layer.
Resumen de: US20260321607A1
0000 A secondary battery includes a negative electrode plate including a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector and including a negative electrode active material that includes a first carbon-based material and a second carbon-based material. The first carbon-based material includes an external region and an internal region located at an inner side of the external region. The external region extends from a surface of a particle of the first carbon-based material to an interior of the particle by a distance of 2.5 μm. In a cross-sectional view of the first carbon-based material, a total pore area of the external region is smaller than a total pore area of the internal region. A degree of graphitization of the first carbon-based material is greater than a degree of graphitization of the second carbon-based material.
Resumen de: US20260321638A1
A secondary battery includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, wherein the negative electrode film layer is provided with a first surface away from the negative electrode current collector and a second surface opposite to the first surface, and the thickness of the negative electrode film layer is denoted as H; a region within a thickness range from the first surface of the negative electrode film layer to 0.3H is denoted as a first region, the first region includes a first negative electrode active material, and the first negative electrode active material includes a first carbon-based material; and the first carbon-based material satisfies that a total pore area of an external region is less than a total pore area of an internal region.
Resumen de: US20260319001A1
In a battery capacity determination method, when an initial static voltage of a battery at which a charging operation starts is less than or equal to a preset voltage threshold value, a current high-voltage inflection point capacity of the battery is determined based on an initial residual capacity corresponding to the initial static voltage and a first capacity corresponding to a charge transferred into the battery from the initial static voltage to a high-voltage inflection point during the charging operation. In the method, a current maximum capacity of the battery is determined based on the current high-voltage inflection point capacity. Apparatus and non-transitory computer-readable storage medium counterparts are also contemplated.
Resumen de: US20260321738A1
0000 An electrode assembly including an electrode stack, which includes a positive electrode including a positive electrode active material layer; a negative electrode including a negative electrode active material layer; and a separator disposed between the positive electrode and the negative electrode, and at least one fixing member which fixes the electrode stack by winding the electrode stack in an overall width direction, wherein the positive electrode includes a positive electrode sliding portion in which a thickness of the positive electrode active material layer decreases, the fixing member includes a first fixing member overlapping the positive electrode sliding portion and a second fixing member not overlapping the positive electrode sliding portion, and a thickness of the first fixing member is greater than a thickness of the second fixing member.
Resumen de: US20260321619A1
The positive electrode active material according to the present invention is in the form of a secondary particle comprising a plurality of primary particles, and is characterized in that it satisfies Formula 1 (Average perimeter of the primary particles present in a region of ⅔ to 3/3R from the center of the secondary particle)≥1.5×(Average perimeter of the primary particles present in a region of ⅓R from the center of the secondary particle), wherein R is a distance from the center of the secondary particle to the surface of the secondary particle.
Resumen de: US20260321809A1
The packaged battery includes a battery and a packaging bag that accommodates the battery. The disclosed packaging bag is a battery packaging bag in which a battery is accommodated. The packaging bag includes at least one sheet of laminated paper including a paper layer and a resin layer laminated on one surface of the paper layer. The at least one sheet of laminated paper is formed into a bag shape forming a sealed space in which the battery is accommodated, the resin layer of the at least one sheet of laminated paper including different portions welded to each other. The thickness of the resin layer is in the range of 50 μm to 60 μm. At least the surface layer of the resin layer is made of a resin having a melting point of 107° C. or lower.
Resumen de: US20260321806A1
0000 The present disclosure relates to a secondary battery including an electrode assembly, an exterior film having an inner space which accommodates the electrode assembly, and an exterior opening which allows the inner space to communicate with outside of the exterior film, and a cover member which covers the exterior opening of the exterior film, wherein the cover member includes a first member which blocks the exterior opening, and a second member which extends from the first member and is coupled to an inner surface of the exterior film.
Nº publicación: US20260321893A1 15/10/2026
Solicitante:
PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
Panasonic Intellectual Property Management Co., Ltd.
Resumen de: US20260321893A1
0000 This power storage device comprises: an electrode body (14) in which a positive electrode (11), a negative electrode (12), and a separator (13) are wound; a polygonal cylindrical case (20) that has a polygonal cylindrical part and an opening at one end of the cylindrical part, and in which the electrode body (14) and an electrolytic solution are accommodated; and a rectangular sealing body (30) that closes the opening of the case (20). A first holding member (41) is interposed between the case (20) and the upper end portion in the axial direction of the electrode body (14). The first holding member (41) has a wall part (41B) positioned in a corner space between the electrode body (14) and a corner portion of the cylindrical part.
BOPI
Sede Electrónica
