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1879
resultados
Última actualización
11/06/2025 [07:53:00]
Resultados 350 a 375 de 1879
Resumen de: WO2025112323A1
A battery separator and a preparation method, and a battery. The battery separator comprises a base membrane, a first bonding layer, a heat-resistant layer, and a second bonding layer. The first bonding layer has a first thickness H1 μm, and has a first coverage rate C1% for the base membrane, the heat-resistant layer has a second thickness H2 μm, the second bonding layer has a third thickness H3 μm, and has a second coverage rate C2 % for the heat-resistant layer, and it is satisfied that: H2>H1+H3, C2=(0.6-1.2)*(H1+H3)/H2%, and C1=(0.1-0.3)*H2/H1%.
Resumen de: WO2025112245A1
A current collector welding jig, comprising a pressing member (1) and an air inlet channel (2a). The pressing member is provided with an accommodation recess (1a) for accommodating a current collector (4). The pressing member is provided with an air passing channel (1b) and a plurality of clearance recesses (1c). The clearance recesses are distributed in the peripheral side of the air passing channel so as to expose areas to be welded on the current collector, each clearance recess communicating with the air passing channel. One end of the air inlet channel communicates with an air source, and the other end thereof communicates with the air passing channel, so that protective gas in the air inlet channel can flow to the clearance recesses through the air passing channel. The present invention further relates to a current collector welding device and a current collector welding method.
Resumen de: WO2025111831A1
A nickel-cobalt-manganese ternary precursor having a high specific surface area, and preparation and a use thereof. The preparation comprises the following steps: S1, in an inert atmosphere, introducing in parallel a mixed metal salt solution containing nickel, cobalt and manganese, a strong alkaline solution, and ammonia water into a reaction kettle base solution, and carrying out a nucleation stage reaction in a coprecipitation process to obtain a first slurry containing seed crystals; S2, in the inert atmosphere, reducing the pH value in the first slurry by 1.0-2.0, carrying out stirring, and carrying out a stage I growth reaction to obtain a second slurry containing stage I crystal grains; and S3, in an oxygen-containing atmosphere, reducing the pH value in the second slurry by 0.4-0.6, carrying out stirring, and carrying out a stage II growth reaction to obtain a second slurry containing stage II crystal grains, wherein the stage II crystal grains are the nickel-cobalt-manganese ternary precursor having a high specific surface area, and the D50 of the stage I crystal grains is 1/2-4/5 of the D50 of the stage II crystal grains. The specific surface area of the nickel-cobalt-manganese ternary precursor is increased, and the structural uniformity of the nickel-cobalt-manganese ternary precursor is maintained.
Resumen de: WO2025111791A1
A battery cell, a battery, and an electric device. The battery cell comprises a casing, a pressure relief structure and an electrode assembly, wherein the casing is provided with a first wall; the pressure relief structure is arranged on the first wall; and the electrode assembly is arranged in the casing and comprises a plurality of electrode sheet layers stacked in a first direction, the plurality of electrode sheet layers including cathode electrode sheet layers and anode electrode sheet layers, each electrode sheet layer comprising an electrode sheet body, a first active material layer and a second active material layer, the first active material layer and the second active material layer being respectively arranged on two sides of the thickness of the electrode sheet body, at least one electrode sheet layer being constructed as a first preset electrode sheet layer, the distance between the first active material layer of the first preset electrode sheet layer and the first wall being greater than the distance between the second active material layer of the first preset electrode sheet layer and the first wall, and the first direction being parallel to a plane where the first wall is located.
Resumen de: WO2025111769A1
An iron phosphate material and a preparation method therefor, relating to the technical field of materials. According to the method, a hydrothermal system having high cost performance is still used as a basis; when raw materials are conventionally introduced, urea-intercalated halloysite nanotubes are used as additives for mixing; the urea-intercalated halloysite nanotubes can slowly release urea in a hydrothermal process to maintain a stable pH balance of the system; and the urea in intercalation layers has improved high-temperature stability and is prevented from rapid decomposition due to high temperature and high pressure of the hydrothermal system in an initial phase of a reaction, so that the final prepared iron phosphate material has an ideal structural morphology. The lithium iron phosphate positive electrode material prepared from an iron phosphate precursor obtained by the method has excellent electrochemical performance.
Resumen de: US2025183467A1
Provided is a battery further superior in safety. A battery that is a cylindrical battery including a cylindrical exterior body that houses a battery element, and safety valves disposed at both end portions of the exterior body, wherein each of the safety valves includes: a first metal member; a support portion that is provided to support the first metal member at a peripheral edge portion of the first metal member and has an opening; and a first insulating member that connects the first metal member and the support portion and contains a thermoplastic resin.
Resumen de: US2025183465A1
A battery module includes a plurality of battery cells, each including a first surface including a first vent, the first surfaces arranged in a first direction; a holder which covers the first surfaces of the plurality of battery cells and includes a second vent; and an insulating sheet which is coupled to the holder, covers the second vent, is deformable by a pressure of a gas discharged through the first vent, and opens the second vent.
Resumen de: US2025183461A1
A battery pack may include a battery housing having an internal receiving space, a plurality of battery cells accommodated inside the internal receiving space of the battery housing, and arranged in a first direction, an upper cover configured to cover an upper portion of the battery housing, where a guide portion may be formed on an inner wall surface of the battery housing to guide insertion of the plurality of battery cells into the internal receiving space.
Resumen de: US2025183462A1
An energy storage apparatus of the present embodiment includes at least one energy storage device, a terminal member aligned with the at least one energy storage device in a predetermined direction, a connector which is connected to the at least one energy storage device in an electrically conductive manner and performs electrical input and output with an outside, and a plurality of linking parts which fix the connector to the terminal member. The plurality of linking parts include at least one linking part made of resin.
Resumen de: US2025183463A1
A busbar module includes a first circuit body, a second circuit body, and an electronic component. First and second wiring patterns are electrically connected to each other at an overlapping portion of first and second main line portions. Among a plurality of first and second contact portions, a first and second wiring portion extends from one of the first and second contact portions to one side in an intersecting direction intersecting a stacking direction, and a first and second wiring portion extends from the other first and second contact portion to the other side in the intersecting direction.
Resumen de: US2025183471A1
Provided are a battery pack and a vehicle including the same. A battery pack according to an embodiment of the present disclosure includes a plurality of pouch-type battery cells, a pack case having an inner space in which the plurality of pouch-type battery cells are accommodated, and a cell cover at least partially surrounding and supporting at least some of the plurality of pouch-type battery cells, in the inner space of the pack case, wherein the cell cover includes a bent portion formed in a bent shape, and at least one venting hole for discharging a flame or gas is formed in the bent portion of the cell cover.
Resumen de: US2025183460A1
A mounting clip for a battery housing is provided. The mounting clip includes a support structure including a recess extending partially into the support structure, wherein the recess is configured to receive a printed circuit board and the recess is configured to enable the printed circuit board to move within the recess to dampen loading.
Resumen de: US2025183359A1
Provided are: a crystalline sulfide solid electrolyte, which has an improved ionic conductivity while adopting a liquid phase method, contains predetermined atoms, has a diffraction peak in X-ray diffractometry using a predetermined CuKα ray, and has a thio-LISICON Region II-type crystal structure as a basic structure; and a method for producing a crystalline sulfide solid electrolyte, the method including mixing using predetermined complexing agents and an instant drying step.
Resumen de: US2025183406A1
A liquid cooling plate, a battery pack and a lower case therefor, and an energy storage system are provided. A plurality of main liquid cooling flow channels and auxiliary liquid cooling flow channels are arranged in a liquid cooling plate of a lower case for a battery pack. An integrated design of the liquid cooling plate and the lower case for the battery pack is realized without the need for installing a separate liquid cooling plate, so that the space utilization rate and energy density of the battery pack is improved. Moreover, the auxiliary liquid cooling flow channels cooperates with the main liquid cooling flow channels, the heat exchange effect between the coolant and the battery cell is improved, and the temperature consistency among the battery cells is enhanced. Therefore, the technical problem of poor temperature consistency among the battery cells is alleviated.
Resumen de: US2025183444A1
An electric vehicle battery case includes: a frame including a plurality of framework members and joined through a joining member, the frame formed in a polygonal frame shape when viewed from a vehicle vertical direction, the frame configured to define a through hole inside; and a tray configured to house a battery, the tray disposed at least partially in the through hole of the frame. The plurality of framework members and include a first framework member and a second framework member which are made of an aluminum extruded material. In the frame, the first framework member and the joining member are joined by a mechanical joining method, and the second framework member and the joining member are joined by a mechanical joining method, which leads to the first framework member and the second framework member being indirectly joined through the joining member.
Resumen de: US2025183389A1
An electric circuit mounted on a vehicle includes a first battery, a second battery, a three-phase motor, an inverter circuit, a charging socket, a connection switching circuit, and a control circuit. The control circuit selectively executes the step-down charging operation and the direct charging operation such that, when the deterioration determination process determines that there is no deterioration, the step-down charging operation is executed when the output voltage difference is larger than the reference value and the direct charging operation is executed when the output voltage difference is smaller than the reference value. When it is determined that there is deterioration in the deterioration determination process, the control circuit executes the step-down charging operation regardless of the output voltage difference.
Resumen de: US2025183346A1
The present application relates to an electrode assembly and an apparatus and method for manufacturing the same.
Resumen de: WO2025112322A1
A silicon-carbon composite material, a preparation method, a secondary battery, and an electric device. The silicon-carbon composite material comprises an inner area and an outer area; the inner area is mainly composed of silicon-containing material particles; and the outer area is mainly composed of carbon-based material particles. The silicon-carbon composite material has excellent gram capacity, and can improve the high-temperature storage performance and cycle stability of the battery.
Resumen de: WO2025112400A1
A battery cell and a manufacturing method therefor, a battery, an electrical device, and a pre-lithiated positive electrode sheet and a manufacturing method therefor. The preparation method for the battery cell comprises the steps of: providing a positive electrode sheet, a negative electrode sheet, a separator, an electrolyte, an insulating coating slurry and lithium metal simple substance material; coating the surface of a positive electrode active material layer with the insulating coating slurry, and drying same to form an insulating coating; attaching the lithium metal simple substance material to the surface of the insulating coating so as to obtain a pretreated positive electrode sheet; assembling the obtained pretreated positive electrode sheet, the separator and the negative electrode sheet to obtain an electrode assembly; and assembling the obtained electrode assembly and the electrolyte to obtain the battery cell. Under the function of the electrolyte, the pretreated positive electrode sheet realizes a pre-lithiation reaction by means of a self-discharge effect and forms a pre-lithiated positive electrode sheet. The battery cell has a high initial coulombic efficiency, good cycle performance and good processability.
Resumen de: WO2025112319A1
A secondary battery and an electric device. In the secondary battery, solvents with a high viscosity and a low viscosity are combined, specific types of electrolyte additives are compounded and build a parameter relationship together with the resistivity of a negative electrode film, and therefore the overall electrolyte injection amount is increased without affecting the electron conduction of a negative electrode, thereby improving the infiltration effect of an electrolyte; moreover, since unique electrolyte components are selected, the degree of interfacial side reactions of the electrolyte is low during operation of the secondary battery, the probability of gas production is low at a normal temperature or high temperature, and the ion conduction capability is high. The secondary battery has good dynamic performance, low risks of high-temperature gas production and a DCR increase, and ideal fast-charge application performance.
Resumen de: WO2025111730A1
A core-shell sodium battery positive electrode material, a preparation method therefor, and the use thereof. The preparation method comprises the following steps: (1) concurrent flow addition of a mixed solution A, an additive solution, a precipitant solution, and a complexing agent solution into a base solution, and carrying out a one-step coprecipitation reaction; (2) switching the mixed solution A with a mixed solution B, and continuing to carry out a two-step coprecipitation reaction to obtain a core-shell sodium battery precursor; and (3) mixing the core-shell sodium battery precursor with a sodium source and carrying out sintering treatment to obtain the core-shell sodium battery positive electrode material; the mixed solution A comprises a main metal element, and the mixed solution B comprises a main metal element and an auxiliary metal element. Elemental components in the inner core and the outer shell are controlled via multi-step coprecipitation, the prepared core-shell structure material possesses high energy density, high safety and stability, etc., and the problems of quaternary or quinary phase separation, primary particles having no crystal form, and low tap density are solved.
Resumen de: WO2025111833A1
An in-situ coated ternary positive electrode composite material, and the preparation and use thereof. The in-situ coated ternary positive electrode composite material comprises a ternary positive electrode base material and a fast ion conductor material, which is in-situ coated on and chemically bonded to the surface of the ternary positive electrode base material, wherein the ternary positive electrode base material is LiNi1-x-yCoxMnyO2, and the fast ion conductor material is Li2TiO3, where 0.02≤x+y≤0.67. By means of wet coating followed by lithium mixed sintering, the synchronous generation of an outer layer (Li2TiO3) and an inner layer (LiNi1-x-yCoxMnyO2) is realized, and the chemical bonding between the inner layer and the outer layer is achieved while the coating uniformity is improved, such that the coated lithium ion conductor Li2TiO3 is not prone to falling off during the charging and discharging of a battery, thereby finally improving the rate capability and the cycling performance of the ternary positive electrode composite material.
Resumen de: US2025183457A1
A battery module (2) and a battery pack (100) are disclosed. The battery module (2) comprises a control circuit (1), a first node (3) and a second node (4) for charging and/or discharging, and at least two first branches (71-7M). Each first branch (71-7M) comprises a respective plurality of battery cells (C11-CN1, . . . , C1M-CNM) of the battery cells (C11-CNM), a respective first branch over-current protecting component (F11-F1M), and a respective first switch (Q11-Q1M). The battery module (2) comprises one or more second branches (81-8M) having one or more second switches (Q21-Q2M). Each second branch (81-8M) comprises a respective second switch (Q21-Q2M). The control circuit (1) is provided with a number of connection lines (V1-VN) corresponding to at least a first count of the respective plurality of battery cells (C11-CN1, . . . , C1M-CNM). Each connection line (V1-VN) is arranged to parallelly connect a respective set (C11-C1M, C21-C2M, . . . , CN1-CNM) of corresponding battery cells (C11-CNM) to each other via a respective cell over-current protecting component (L11-L1M, L21-L2M, . . . , LN1-LNM). Said each corresponding battery cell (C11-CNM) is comprised in a respective first branch (71-7M). The corresponding battery cells are corresponding to each other in that a respective second count of battery cells towards the first or second node (3, 4) from said each corresponding battery cell in the respective first branch (71-7M) is equal.
Resumen de: US2025183466A1
A battery module including battery cells arranged in a horizontal direction. Each of the battery cells includes a cell vent, a positive electrode terminal, and a negative electrode terminal. The battery module also includes a heat-resistant portion potted on the battery cells. The heat-resistant portion includes a heat-resistant vent provided in an area corresponding to the cell vent and a heat-resistant support portion provided outside the heat-resistant vent. The battery module also includes a bus bar holder on the heat-resistant portion. The bus bar holder includes a holder vent hole in an area corresponding to the heat-resistant vent and a bus bar hole in an area corresponding to the positive electrode terminal and the negative electrode terminal. The battery module further includes bus bars on the heat-resistant portion and connected to the positive and negative electrode terminals of the battery cells.
Nº publicación: US2025183459A1 05/06/2025
Solicitante:
G D S P A [IT]
G.D. S.P.A
Resumen de: US2025183459A1
A method for assembling an electric battery comprises providing a hollow container having a side wall and a bottom wall defining an inner cavity; providing an upper portion of the hollow container comprising an outer surface; providing an insert made of electrically conductive material comprising a connection portion; providing a lid; inserting an electrochemical cell into the inner cavity of the hollow container; connecting the insert to a pole of the electrochemical cell; closing the inner cavity of the hollow container with the lid, creating an overlapping region in which the upper portion of the hollow container is positioned axially above the lid and the connection portion. Welding together at least the connection portion of the insert and the upper portion of the hollow container at the overlapping region by acting with a welder on the side facing the outer surface of the upper portion of the hollow container.
BOPI
Sede Electrónica
