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1363
resultados
Última actualización
13/09/2025 [07:35:00]
Resultados 950 a 975 de 1363
Resumen de: US2025279413A1
A positive electrode plate and a preparation method therefor, a battery cell, a battery, and an electric device are described. The positive electrode plate includes: an active material layer, where the active material layer includes a first active material, a conductive agent, and a binder. The first active material includes a layered transition metal oxide, and the binder includes a flexible binder, configured to bind the first active material and the conductive agent. Performance of a battery including the positive electrode plate is improved.
Resumen de: US2025279411A1
A secondary battery and an electrical device including the secondary battery. The secondary battery includes a negative electrode and an electrolyte. The negative electrode of the secondary battery includes a silicon-carbon composite material having a three-dimensional network cross-linked pore structure, and the electrolyte of the secondary battery includes dimethyl carbonate.
Resumen de: US2025279410A1
A positive electrode active material composition, a positive electrode plate, a battery, and an electric apparatus are described. The positive electrode active material composition includes a first positive electrode active material and a second positive electrode active material, where the first positive electrode active material includes a core LiaAbMnfB1-fP1-dRdO4-nDn and a coating layer covering the core, and the second positive electrode active material includes a compound LiNixCoyM1-x-yO2; and 0.018m+0.003f≤z≤0.02m+0.02f is satisfied.
Resumen de: US2025279418A1
A positive electrode plate includes: a positive electrode current collector and a positive electrode active material layer disposed on a surface of at least one side of the positive electrode current collector and including a positive electrode active material. The positive electrode active material includes a sodium-containing positive electrode active material. A thickness of the positive active plate satisfies that Dmax/Dmin is 104.5% to 300%, where for a battery assembled from the positive electrode plate and a negative electrode plate, Dmax is a thickness of the positive electrode plate of the battery at 0% SOC, and Dmin is a thickness of the positive electrode plate of the battery at 100% SOC. The negative electrode plate includes a negative electrode current collector, and when the battery is at 100% SOC, a surface of at least one side of the negative electrode current collector has a sodium metal layer.
Resumen de: US2025279412A1
A negative electrode for an all solid-state battery includes a current collector, a first layer on the current collector, the first layer including a Si-carbon composite, and a second layer on the first layer, the second layer including a carbonaceous material and a metal, wherein a ratio of a capacity of the negative electrode/a capacity of a positive electrode is about 0.5 to about 2.
Resumen de: AU2025217369A1
A battery pack including a housing; and two or more battery cells located in the housing. The two or more battery cells interconnected by a configurable connector which is configured to enable electrical connections between the two or more battery cells. The configurable connector contains a plurality of first electrical terminals connected to the two or more battery cells, and a terminal holder adapted to be removably connected to the plurality of the first electrical terminals. The terminal holder is adapted to be installed to the housing in a first orientation at which the two or more battery cells are electrically connected, or in a second orientation at which the two or more battery cells are not electrically connected. The terminal holder contains a plurality of second electrical terminals. One of the plurality of the second electrical terminals always engages with a same one of the plurality of the first electrical terminals, when the terminal holder is installed to the housing in the first orientation or the second orientation. The single terminal holder can be installed battery pack in different orientations for enabling / disabling the internal circuit of the battery pack, and can be locked by a latch mechanism which reduced the chance that the terminal holder is accidentally lost during usage. A battery pack including a housing; and two or more battery cells located in the housing. The two or more battery cells interconnected by a configurable connector which is co
Resumen de: US2025279512A1
A battery cell, a battery, and an electric device are disclosed. The battery cell includes a shell, lead-out components, electrode assemblies and an insulating bracket. The shell has a first wall, and the lead-out components are connected to the first wall. The electrode assemblies are accommodated in the shell. The electrode assembly includes a main body and tabs. The tabs are provided protruding from one end of the main body facing the first wall. The tabs are connected to the lead-out components. In the thickness direction of the first wall, the insulating bracket is provided between the first wall and the main body, and the insulating bracket is fixedly connected to the lead-out components. For the battery cell of this structure, the insulating bracket can be fastened to the first wall, such that the insulating bracket is fixed in the shell.
Resumen de: WO2025182605A1
The present invention makes it possible to ascertain the charging rate of an electric vehicle in accordance with the actual situation. When a vehicle (10) is started, a voltage-estimated SOC value is obtained by estimating the charging rate using the voltage of a large-scale battery (12), and after traveling begins, a change in the charging rate is estimated on the basis of inputs and outputs of current to and from the large-scale battery (12) to obtain a current-integrated SOC calculated value that has changed from the voltage-estimated SOC value, the advisability of reacquisition is determined on the basis of at least one of a continuous traveling history, a charge/discharge history, and a temperature history, and the charging rate is estimated using the voltage of the large-scale battery (12) even if the vehicle (10) is in the P range and reacquisition is permitted, and if the inputs and outputs of current to and from the large-scale battery (12) are less than a first predetermined value.
Resumen de: WO2025183409A1
The present invention relates to a method for preparing a positive electrode active material, a positive electrode active material prepared using same, and a lithium secondary battery comprising same and, more specifically, to a method for preparing a positive electrode active material, the method comprising: forming a lithium nickel-based composite oxide; and coating the lithium nickel-based composite oxide. Forming the lithium nickel-based composite oxide comprises: forming a first aqueous solution comprising an aluminum compound and a basic compound; forming a mixture including the lithium nickel-based composite oxide and the first aqueous solution; adding a second aqueous solution including a cobalt compound to the mixture; and drying and heat-treating the mixture.
Resumen de: US2025276342A1
A coating deviation correction method includes: acquiring a first distance and a second distance, where the first distance is a distance from an edge of a coating region on a first surface of an electrode plate substrate to a reference edge, and the second distance is a distance from an edge of a coating region on a second surface of the electrode plate substrate to the reference edge; and determining a target deviation correction amount in a coating process based on the first distance, the second distance, and at least one preset deviation correction amount. The target deviation correction amount can be determined with high efficiency and accuracy by using the method.
Resumen de: US2025276339A1
A coating apparatus includes: a coating die head having a discharge port; an adjustment assembly disposed on the coating die head; and a control assembly connected to the adjustment assembly. The control assembly is configured to detect an actual surface density of coating on an electrode plate and control the adjustment assembly to adjust a flow area of the discharge port based on a difference between the actual surface density and a target surface density.
Resumen de: US2025276338A1
The present disclosure discloses a coating device. The coating device includes a coating roller, a scraping roller, and a blocking assembly. The scraping roller and the coating roller are arranged side by side, and a gap is provided between the scraping roller and the coating roller to allow a slurry to pass through. The blocking assembly is arranged at an outer side of the coating roller and an outer side of the scraping roller. The blocking assembly includes a support and a blocker mounted at the support. The blocker includes a cooperation portion cooperating with the coating roller and an engagement portion cooperating with the scraping roller. A first end of the cooperation portion and a first end of the engagement portion are connected and form an angle portion. The angle portion extends into the gap.
Resumen de: US2025276341A1
A method for coating a glue on a water-cooling plate comprises acquiring a first image and a second image comprising the water-cooling plate; determining a deviation between a placement position and a preset position of the water-cooling plate based on the first image and the second image; regulating a glue coating trajectory based on the deviation between the placement position and the preset position of the water-cooling plate; and coating the glue on the water-cooling plate based on the regulated glue coating trajectory.
Resumen de: WO2025179799A1
A tab flattening device, comprising a driving member and tab flattening structures (200). Each tab flattening structure (200) comprises a mounting body (210), a flattening head (220), and edge restraint members (230). The flatting head (220) is rotatably arranged on the mounting body (210) and protrudes from one side of the mounting body (210). The outer surface of the flattening head (220) forms a flattening surface (221) capable of coming into contact with surfaces (252) of tabs. The edge restraint members (230) are arranged on the periphery of the flattening head (220), and protrude from one side of the mounting body (210) and form restraint surfaces (231) capable of coming into contact with edge end portions (251) of the tabs (25). While flattening the tabs (25), the edge end portions (251) of the tabs (25) can be restrained, so that the flattened tabs (25) are confined within a safe range, thereby reducing the likelihood of burrs of the tabs (25) coming into contact with other parts of a battery (100), and thus improving the reliability of the battery (100).
Resumen de: WO2025179786A1
The present application relates to the field of batteries, and provides a housing manufacturing method, a housing, a battery cell, a battery, and an electric device. The housing manufacturing method comprises: providing a material sheet; and processing the material sheet to form a housing. The housing is provided with a pressure relief groove, and during pressure relief, the housing can crack along at least part of the pressure relief groove, to release pressure in the housing. The housing manufactured by the housing manufacturing method is provided with the pressure relief groove, so that when the pressure or temperature in the housing reaches explosion initiation pressure, the housing can crack along at least part of the pressure relief groove, to release pressure in the housing. In the housing manufacturing method, the pressure relief groove is directly formed in the housing, without welding, thereby avoiding liquid leakage caused by welding defects, and prolonging the service life of battery cells.
Resumen de: WO2025179789A1
The present application provides a battery cell, a battery, and an electric device. The battery cell comprises a casing, a valve body, and a movable valve; the casing has an accommodating cavity and a first wall; a first through hole is formed in the first wall, and is communicated with the accommodating cavity and the exterior of the battery cell; the valve body is connected to the first wall; a second through hole is formed in the valve body, and is communicated with the accommodating cavity; the movable valve is movably connected to the valve body, and is configured to be capable of switching between a blocked state and a connected state with respect to the valve body; in the blocked state, the first through hole and the second through hole are closed; and in the connected state, the second through hole is communicated with the exterior of the battery cell through the first through hole. According to the battery cell provided by the present application, control of the humidity in the accommodating cavity during manufacturing of the battery cell is facilitated, and the reliability of the battery cell is improved.
Resumen de: WO2025182451A1
Provided are a solid electrolyte (19) capable of reducing interface resistance, an ion conductor (10), a sheet (15), an electrode (12), a separator (25), and a power storage device (11). The solid electrolyte has a garnet-type crystal structure containing Li, La, Zr, and O. In X-ray photoelectron spectroscopy, a second intensity is greater than a first intensity, and a fourth intensity is less than a third intensity, where the first intensity is the area intensity of a first peak corresponding to a Li-O bond in an O1s spectrum detected via irradiation with monochromatized AlKα rays, the second intensity is the area intensity of a peak present at a position where the binding energy is greater than the binding energy of the first peak, the third intensity is the area intensity of a third peak corresponding to the Li-O bond in the O1s spectrum detected via irradiation with monochromatized CrKα rays, and the fourth intensity is the area intensity of a peak present at a position where the binding energy is greater than the binding energy of the third peak.
Resumen de: WO2025183423A1
Provided is a battery device comprising: a plurality of pack housings including a first pack housing and a second pack housing, each of which accommodates a cell assembly including a plurality of battery cells, and which are stacked in one direction; and an upper cover which covers the upper portion of the pack housing disposed at the uppermost end among the plurality of pack housings, wherein: each of the first pack housing and the second pack housing comprises: a lower frame in which the cell assembly is seated; and a plurality of side frames connected to the lower frame to protect the side surface of the cell assembly; at least one of the plurality of side frames comprises: a body part disposed to face the side surface of the cell assembly; and a first upper flange and a first lower flange disposed at both ends of the body part in the height direction; and the first lower flange of the first pack housing and the first upper flange of the second pack housing are coupled to each other with the lower frame of the first pack housing therebetween.
Resumen de: WO2025183415A1
The present invention relates to an apparatus for manufacturing an electrode assembly and a method for manufacturing an electrode assembly. According to one embodiment of the present invention, a method for manufacturing an electrode assembly may be provided, in which a lamination step of manufacturing unit cells through a lamination unit and a stacking step of manufacturing an electrode assembly by sequentially stacking the unit cells through stacking equipment are sequentially and continuously performed, wherein, a buffer input step of inputting the unit cells manufactured in the lamination step into a buffer magazine is performed in order to continue manufacturing the unit cells when the stacking equipment is stopped, or a buffer release step of providing the unit cells stored in the buffer magazine to the stacking equipment is performed in order to continue manufacturing the electrode assembly when the lamination unit is stopped.
Resumen de: WO2025183402A1
The present invention relates to a bipolar electrode comprising: a current collector including a polymer film and a conductive layer added to at least a portion of the outer surface and inner surface of the polymer film; a positive electrode formed on a first surface of the current collector; and a negative electrode formed on a second surface of the current collector, wherein, by heat-fusing the current collector composed of the polymer film to implement a sealed form, the movement of electrolyte between the electrodes may be prevented.
Resumen de: US2025278081A1
A battery manufacturing method is applied to the battery manufacturing system. The battery manufacturing system includes a controller and production equipment. The battery manufacturing method includes: during product production by production equipment in any process of a battery production line, obtaining, by the controller, product information, where the production equipment is equipment corresponding to any process in a battery group production line; and in a case that the product information meets a product switching condition, controlling, by the controller, the production equipment to switch to producing a new-model product.
Resumen de: US2025277834A1
An insulation resistance detection device includes: a voltage measurer that measures a voltage at a first node among a plurality of nodes between a plurality of voltage dividing resistors included in an insulation detection circuit for detecting insulation resistance in a path through which a current from a battery flows; a determiner that determines whether the voltage at the first node measured by the voltage measurer is lower than or equal to a predetermined voltage; and a switcher that switches a state of a switch connected to a second node among the plurality of nodes to cause the voltage measured by the voltage measurer to exceed the predetermined voltage, when the voltage at the first node measured by the voltage measurer is determined to be lower than or equal to the predetermined voltage.
Resumen de: US2025276898A1
A carbon coated lithium metal phosphate (LMP) having improved characteristics may be made by a method comprising (i) milling a slurry comprised of LMP precursors and water, removing the water to form a mixture comprised of milled precursors, heating the mixture to an intermediate temperature of 200° C. to less than 400° C. to form an intermediate, mixing the intermediate with a carbon precursor in a solvent that dissolves the carbon precursor, removing the nonaqueous solvent to form a coated intermediate, and heating the coated intermediate to a reaction temperature of at least 400° C. to 1000° C. in a non-oxidizing atmosphere to form the carbon coated lithium manganese iron phosphate. The method enables the formation of carbon coated lithium manganese iron phosphate with electrochemical performance approaching theoretical even at larger average primary particle size utilizing commercially practicable production methods.
Resumen de: US2025276866A1
The disclosed subject matter provides a winding device that includes a material-placing mechanism, a mounting table, a winding member and a restraining member, wherein the material-placing mechanism is configured to convey a material strip; the winding member includes a winding needle base and a plurality of winding needles provided on the winding needle base, the winding needle base is rotatably provided on the mounting table, with a winding needle gap formed between the plurality of winding needles, such that the material strip passes through; the restraining member is provided outside the winding needle gap and configured to fix the material strip protruding from the winding needle gap with a preset force F1, the winding needle base is configured to drive the winding needle to rotate with a winding tension F2, and F1 is less than F2.
Nº publicación: WO2025179962A1 04/09/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2025179962A1
Disclosed in the present application are a battery and an electric apparatus. The battery comprises a battery case, at least two rows of battery packs and a connecting structure, wherein the at least two rows of battery packs are located inside the battery case, each row of battery packs comprises a plurality of battery cells, and the two rows of battery packs are each provided with an output terminal busbar; and the connecting structure is located inside the battery case, the connecting structure is electrically connected to the output terminal busbars of the two rows of battery packs, and at least part of the connecting structure is in contact with the battery case. The connecting structure comprises a connecting body and a heat conduction layer, wherein the connecting body is electrically connected to the output terminal busbars of two adjacent rows of battery packs; the heat conduction layer is arranged on the connecting body, and at least part of the heat conduction layer is in contact with the battery case. The connecting structure connected to the output terminal busbars of the two rows of battery packs is in contact with the battery case, so that the heat of an output terminal busbar with the highest overcurrent temperature can be transferred to the battery case to realize the heat dissipation of the battery packs, thereby improving the reliability of the battery.
BOPI
Sede Electrónica
