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1196
resultados
Última actualización
18/08/2025 [07:12:00]
Resultados 1050 a 1075 de 1196
Resumen de: CN120077499A
This porous insulating layer imparting object is provided with: a base material; and an adhesive porous insulating layer on the base material. The adhesive porous insulating layer is a porous structure having a co-continuous structure having a resin as a skeleton, and the resin is a crosslinked resin. In a peel strength measurement method using an element for measuring peel strength, the peel strength of an adhesive porous insulating layer is 2 N/m or more, and the element for measuring peel strength is obtained by: preparing a base material, as one of two base materials each having a size of 30 mm * 100 mm, forming a base material having a thickness of 30 mm * 100 mm; an adhesive porous insulating layer is provided by disposing an adhesive porous insulating layer on the entire surface of each of the two substrates, and the adhesive porous insulating layers face each other and are thermally bonded at a temperature of 140 DEG C and a cylinder thrust of 500 N for 1 minute.
Resumen de: CN120051885A
The invention relates to a device for spacing cells of a battery, comprising a spacer in contact with adjacent large sides of the cells, the spacer comprising:-a flow region positioned opposite the adjacent large sides of the cells and extending over a majority of these large sides,-one or more ribs, the invention relates to a heat transfer device comprising a plurality of cells forming at least one forced flow circuit (C) of the fluid between the cells, in which turbulators (T) are present in the flow region along the forced flow circuit (C) so as to generate turbulent flow in the flow of the heat transfer fluid between the inlet (E) and the outlet (S) of the forced flow circuit, which turbulators are raised and extend in the height direction in the ribs.
Resumen de: WO2024069291A1
An electrochemical cells and methods of making the same are disclosed. An electrochemical cell may include a cell housing and a cell core disposed in the cell housing. The cell body may extend along a longitudinal axis from a distal end to a proximal end. The cell core may include a cathode electrode, an anode electrode, and a separator disposed between the cathode electrode and the anode electrode. The cathode electrode may define a plurality of cathode windings around the longitudinal axis. Each cathode winding may include a porous conductive strip and a cathode active material disposed on the porous conductive strip. The anode electrode may be disposed around the cathode electrode.
Resumen de: EP4597728A1
This application provides a battery pack (100) and an electric device having the battery pack (100). The battery pack (100) includes a cell assembly (10) and a connecting member (20). The cell assembly (10) includes M cells (11) stacked along a first direction (X). Each cell (11) includes a cell housing (111), an electrode terminal (113), and an electrode assembly (112) disposed within the cell housing (111). The connecting member (20) includes N conductive sheets (23) spaced apart. The electrode terminal (113) is connected to the conductive sheet (23). Electrode terminals (113) of adjacent cells (11) are arranged in a non-overlapping manner in the first direction (X), reducing the risk of short circuits between adjacent electrode terminals (113). The electrode terminal (113) is connected to the electrode assembly (112) and extends out from the cell housing (111). Along the first direction (X), a projection of a portion, located outside the cell housing (111), of an electrode terminal (113) of any one of the cells (11) is separated from a projection of a portion, located outside the cell housing (111), of an electrode terminal (113) of an adjacent cell (11) in a second direction (Y). The second direction (Y) is perpendicular to the first direction (X), which is conducive to the connection of the electrode terminals (113) to other conductive members.
Resumen de: EP4597673A1
An electrochemical device of this application includes a positive electrode, a negative electrode, and an electrolyte, where the positive electrode includes a positive electrode active material, the positive electrode active material includes element A, and element A is selected from at least one of La, Y, or Nb; based on a mass of the positive electrode active material, a mass percentage of element A is x%; the electrolyte includes a compound represented by formula (I); and based on a mass of the electrolyte, a mass percentage of the compound represented by formula (I) is a%.
Resumen de: EP4597672A1
An electrochemical device and an electronic device are provided. The electrochemical device includes a negative electrode, a positive electrode, a separator, and an electrolyte. The positive electrode includes a positive electrode active material containing a doping element, where the doping element includes one or more selected from the group consisting of aluminum, magnesium, zirconium, titanium, and lanthanum; and based on a mass of the positive electrode active material, a mass percentage of the doping element is b%, where 0.01≤b≤3 . The electrolyte includes a polynitrile additive. The positive electrode active material of this application includes the doping element in the mass percentage of 0.01 mass% to 3 mass%. The doping element can improve the structural stability and thermal stability of the positive electrode active material after delithiation. The polynitrile additive of the electrolyte can form an interfacial protection film on a surface of the positive electrode active material, reducing the risk of side reactions at an interface of the positive electrode active material, thereby reducing the heat generated at the interface, further improving the thermal stability of the positive electrode active material, and improving the cycling performance of the electrochemical device at high temperatures.
Resumen de: AU2023350690A1
Disclosed herein is a method for recovering metals from electronic waste or a leach residue thereof, the electronic waste or leach residue comprising elemental copper and one or more lithium compounds, the method comprising: leaching the electronic waste or leach residue with a leach solution comprising ammonium sulphate in the presence of an oxidant to provide a leachate comprising Cu ions and Li ions and a solid residue; and separating the leachate and the solid residue.
Resumen de: WO2024068158A1
An electrical energy storage device (2, 2A-2C) for an implantable medical stimulation device (1) comprises a housing (20), a first electrical electrode and a second electrical electrode having different electrical polarities, one of the first electrical electrode and the second electrical electrode being formed by an electrode element (21) having an electrically conductive electrode body (210) arranged in the housing (20), and a current collector arrangement (22) electrically connected to the electrode element (20). The current collector arrangement (22) comprises a first current collector element (220) forming a first current collection section (222) having a first free end (227) and a second current collector element (221) forming a second current collection section (223) having a second free end (228), wherein the first current collection section (222) and the second current collection section (223) each extend in the electrode body (210) or along a surface of the electrode body (210) such that the first free end (227) of the first current collector element (220) and the second free end (228) of the second current collector element (221) are arranged at a distance with respect to one another in or on the electrode body (210).
Resumen de: US2024107716A1
A thermal management system includes a high-pressure (HP) container, a low-pressure (LP) container in fluid communication with the HP container and having a fluid pressure less than the HP container, and a two-phase working fluid partially in the HP container and partially in the LP container. The two-phase working fluid has a vapor phase and a liquid phase. A pump is configured to move the working fluid through the system, and a condenser is configured to condense the vapor phase of the working fluid into the liquid phase.
Resumen de: WO2024067924A1
The present invention relates to a solid-state battery system (1, 2), having at least one solid-state battery (1) with a preferred size-changing direction (A), and having at least one solid-state battery holder (2) which is designed to counteract the size change of the solid-state battery (1) in the size-changing direction (A) by means of at least one variable fluid volume (23).
Resumen de: EP4597686A1
The present invention provides a saggar for an apparatus for recycling of waste secondary batteries, the saggar including a storage part input together with objects into the apparatus including a work part, wherein the storage part includes a body part and a mesh part coming into contact with the objects inside the body part, and a predetermined mixed gas input into the work part enters the storage part. According to the present invention, heat treatment efficiency can be maximized by making it easy to input a gas for heat treatment of waste secondary batteries, mass heat treatment of waste secondary batteries is possible, and multiple types of waste secondary batteries can be treated at once.
Resumen de: EP4597594A1
A system and a method for manufacturing an electrode assembly for a battery are provided. The system includes a first cutter configured to cut a first patterned electrode sheet to form a first electrode cut portion having a first length, a first sensor arrangement configured to generate a first cutting operation code and to acquire first position data reflecting positions on the first electrode sheet, a second cutter configured to cut a second patterned electrode sheet to form a second electrode cut portion having a second length, a second sensor arrangement configured to generate a second cutting operation code and to acquire second position data, a combinator configured to manufacture an electrode assembly by combining the first electrode cut portion and the second electrode cut portion with a separator interposed therebetween, and an identification information assigning device configured to assign identification information to the manufactured electrode assembly and associate the identification information with the first cutting operation code and the first position data, and with the second cutting operation code and the second position data.
Resumen de: WO2024072238A1
A method for recovering metals from black mass from recycling of spent lithium-ion batteries, characterized in that it comprises the following steps: a) leaching the black mass with sulfuric acid (VI) with the addition of H2O2 in order to obtain an extract comprising metals; b) adding iron dust to the extract in order to cement copper and then separating the precipitated copper from the extract; c) adding a manganese oxidizing agent to the extract and then separating the resulting MnCh from the extract; d) alkalizing the extract in order to precipitate iron (III) hydroxide or iron (III) oxyhydroxide or a mixture thereof and then separating the resulting precipitate from the extract; e) alkalizing the extract in order to precipitate nickel (II) hydroxide and cobalt (II) hydroxide, or nickel (II) carbonate and cobalt (II) carbonate, separating the resulting precipitate from the extract to obtain a lithium-containing solution, solubilizing the separated precipitate in hydrochloric acid and then selectively separating nickel ions and cobalt ions from the obtained solution in a column filled with ion exchange resin, wherein the elution of nickel ions is carried out with a hydrochloric acid solution, and the elution of cobalt ions is carried out with water, to obtain a nickel ions solution and a cobalt ions solution, followed by adding oxalate solution to the obtained nickel ion solution and cobalt ion solution in order to precipitate nickel oxalate and cobalt oxalate, and then sep
Resumen de: WO2024072239A1
The invention relates to a method for recycling of lithium-ion cells and batteries, comprising the following steps: a) grinding lithium-ion cells and/or batteries in a grinding device sprayed with an organic solvent and in an inert gas protective atmosphere to form a heterogeneous mixture comprising ground lithium-ion cells and/or batteries and the organic solvent; b) mechanically stirring the heterogeneous mixture obtained in step a) to form a suspension comprising a coarse fraction, black mass and the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and binders are dissolved; c) separating the suspension obtained in step b) into the coarse fraction and a suspension of the black mass in the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and the binders are dissolved; and d) separating the suspension obtained in step c) into the black mass and the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and the binders are dissolved.
Resumen de: CN120077492A
A grinding process includes the step of combining FePO4, Li2CO3, water, a carbon source, and an abrasive to form a slurry, the abrasive of the slurry having structure (I) wherein n of structure (I) is from 1 to 10, and R1 is selected from the group consisting of hydrogen, an alkylphenyl group, a linear or branched primary or secondary alkyl chain, and R2 is selected from the group consisting of hydrogen, a methyl group, an ethyl group, or a combination thereof; and grinding the slurry.
Resumen de: CN119948673A
A cooling plate for battery thermal management in a battery pack and a process of forming such a battery pack are provided. The cooling plate is made of a composite material, and the cooling plate is of a hollow structure. The composite material comprises a heat-conducting filler, and the heat-conducting filler is dispersed in a polymer matrix. The hollow structure has an outer wall having a thickness in a range of about 0.3 mm (mm) to about 2.5 mm. The hollow structure comprises a top section, a bottom section and one or more channels, and the top section is in thermal contact with the at least one battery; the bottom section and the top section are integrally formed; one or more channels are located between the top section and the bottom section, the one or more channels configured to allow fluid flow through the one or more channels to provide thermal management of the battery.
Resumen de: EP4597663A1
With respect to a nonaqueous electrolyte secondary battery (10) according to one example embodiment of the present invention, a positive electrode (11) contains, as a positive electrode active material, a lithium transition metal composite oxide that has a layered structure and contains not less than 75 mol% of Ni with respect to the total molar quantity of metal elements excluding Li. The lithium transition metal composite oxide is in the form of secondary particles that are obtained by aggregation of primary particles; and at least one element selected from the group consisting of Ca and Sr, and at least one element selected from the group consisting of W, Mo, Ti, Si, Nb and Zr are present at the interfaces between the primary particles inside the secondary particles. A negative electrode (12) contains, as a negative electrode active material, a silicon-containing material.
Resumen de: EP4597725A1
A separator (10) includes a first base film (11) and a second base film (12), where a melting point of the second base film (12) is higher than a melting point of the first base film (11), and a creep flexibility of the first base film (11) is larger than a creep flexibility of the second base film (12). The first base film (11) and the second base film (12) have different creep flexibility, so that the two base films have different deformability under the action of a stress. Stress buffering of one layer of base film and strength support of the other layer of base film jointly suppress damage to the separator caused by dendrites and reduce the risk of a short circuit caused by the dendrites penetrating the separator, thereby improving the reliability and cycle life of a battery.
Resumen de: EP4597642A1
Disclosed are a current collector (40) and a method for preparing same, an anode plate comprising the current collector (40), a secondary battery (100), and an electric device (1000). The current collector (40) includes a porous three-dimensional framework (402) and a lithiophilic substance (404), where the lithiophilic substance (404) is distributed in pores of the porous three-dimensional framework (402). The current collector (40) includes a first side used to face the separator, and a second side facing away from the first side. In a direction from the first side to the second side, the porous three-dimensional framework (402) includes a first part and a second part, the thickness of the lithiophilic substance (404) in the pores of the first part being less than the thickness of the lithiophilic substance (404) in the pores of the second part. The thickness of the lithiophilic substance (404) in the current collector (40) gradually increases in a thickness direction of the porous three-dimensional framework (402), which may induce preferential deposition of a lithium metal in the second part of the porous three-dimensional framework (402), so as to limit the infinite volume expansion of deposited lithium by fully utilizing the pores of the three-dimensional current collector (40).
Resumen de: EP4597626A1
Provided is a positive electrode material for a lithium ion secondary battery, including aggregated particles including aggregated multiple primary particles of a positive electrode active substance containing lithium iron phosphate coated with a carbonaceous film, the positive electrode active substance having a prescribed composition containing lithium iron phosphate, the positive electrode material having a change rate of a lattice area of a b-c axis plane before charging and after full charging (((lattice area before charging-lattice area after full charging)/lattice area before charging) × 100) of 1.10% or more and 1.33% or less. The positive electrode material has excellent cycle characteristics and high input and output characteristics in using as a positive electrode of a lithium ion secondary battery.
Resumen de: EP4597679A1
A non-aqueous electrolyte secondary battery comprises: an electrode body obtained by winding a negative electrode (12) in which a negative electrode mixture layer (32) is formed on a negative electrode core body (30) and a positive electrode, with a separator therebetween; and a non-aqueous electrolyte. The non-aqueous electrolyte secondary battery is characterized in that: the negative electrode (12) has, at the winding direction inner-end side of the electrode body, a non-facing part (12a) which does not face the positive electrode with the separator therebetween; the non-facing part (12a) has a mixture non-facing part (12c) in which the negative electrode mixture layer (32) is formed on at least one surface of the negative electrode core body (30), from the winding direction outer end of the non-facing part (12a) and toward the winding direction inner side; and the average value of a mixture surface distance which is between the mixture non-facing part (12c) and the negative electrode (12e) positioned one turn outward of the mixture non-facing part (12c) is not less than 90 µm.
Resumen de: EP4597607A1
A disclosed positive electrode is a positive electrode for a nonaqueous electrolyte secondary battery. The positive electrode includes a positive electrode mixture layer. The positive electrode mixture layer contains a positive-electrode active material, a conductive material, a fluorine-containing polymer, and a dispersant. The positive-electrode active material includes a composite oxide represented by a composition formula LiyNixM(1-x)O2-δ (where x, y, and δ satisfy 0.6≤x≤1, 0
Resumen de: EP4597724A1
Provided in the present application is a separator. The separator comprises : a first porous base film; a second porous base film; and a porous coating, which is provided between the first porous base film and the second porous base film, wherein the porous coating comprises a binder and filler particles, and at least some of the filler particles are embedded into the first porous base film at a depth greater than or equal to 1 µ m and/or at least some of the filler particles are embedded into the second porous base film at a depth greater than or equal to 1 µ m. When the porous coating is located between the first porous base film and the second porous base film, not only can the binder bond the first porous base film and the second porous base film, at least some of the filler particles can also be embedded into the first porous base film and/or the second porous base film at a depth greater than or equal to 1 µ m, such that the bonding force between the porous coating and the first porous base film and/or the second porous base film is increased, and the heat resistance and nailing performance of the separator are effectively improved, thereby improving the reliability of a battery.
Resumen de: EP4597685A1
Provided are a battery, a charging device, a battery charging method, a battery management system and an electrical apparatus, which can improve the charging performance of batteries. The battery comprises: at least one battery cell, a positive electrode active material of the battery cell comprising LiMPO<sub>4</sub>, and M comprising Mn element and Fe element; and the battery management system, used for controlling the temperature of the battery in response to a charging instruction, such that the temperature of the battery during at least part of a charging process is within a preset temperature range.
Nº publicación: EP4597785A1 06/08/2025
Solicitante:
XIAOMI EV TECH CO LTD [CN]
Xiaomi EV Technology Co., Ltd
Resumen de: EP4597785A1
A battery management device, a battery and a vehicle, including a power distribution unit, a management control unit, a bottom plate (3) and a second circuit board (52). The management control unit includes a first circuit board (53); the power distribution unit and the management control unit are both integrated on the bottom plate (3); the second circuit board (52) is electrically connected with the first circuit board (53) and the power distribution unit, and the first circuit board (53) and the second circuit board (52) are integrally formed.
BOPI
Sede Electrónica
