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1225
resultados
Última actualización
26/04/2025 [07:40:00]
Resultados 1100 a 1125 de 1225
Resumen de: EP4539235A1
The present application provides an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes a positive electrode plate, a negative electrode plate, a separator, and an organic coating. The separator is disposed between the positive electrode plate and the negative electrode plate. The organic coating is disposed on a side of the positive electrode plate facing the separator and/or on a side of the separator, and the organic coating includes organic particles that react with dendrites containing metal elements.
Resumen de: EP4539170A1
The present application relates to an electrode plate, a battery and an electrical device. The electrode plate comprises a current collector and a film layer disposed on at least one side of the current collector, the film layer comprising an active material and an adsorptive polymer, wherein: the adsorptive polymer satisfies: 3 ≤m1/n ≤ 35, in which n represent a mass of the adsorptive polymer, in grams, and m1 represents a mass, in grams, of a first substance that is obtained by: adding the adsorptive polymer to a predetermined electrolytic solution at 45°C to form a polymer system, allowing the polymer system to stand for 60 hours at 45°C and for ≥24 hours at 25°C, and then filtering the polymer system through a 200-mesh screen to obtain remains as the first substance; and the adsorptive polymer further satisfies: 1.00 ≤ m2/n ≤ 1.05, in which m2 represents a mass, in grams, of a second substance, that is obtained by: drying the first substance at 60°C for ≥24 hours to obtain remains as the second substance.
Resumen de: WO2024261726A1
The invention relates to an electric battery cell comprising at least one consecutive stack of a sheet: - of a first positive electrode (2) comprising an upper edge (4); - a first insulating separator; - a second negative electrode (3) comprising a lower edge (5); and - a second insulating separator, the at least one stack being rolled up on itself about a central axis (Y) so as to form a cylinder, the first electrode (2) and the second electrode (3) each comprising at least two series (6) of current collector tabs (7), each series (6) comprising at least two current collector tabs (7) having a given height (9), in which cell in a given series (6) the current collector tabs (7) are substantially the same height (9) and the height (9) of the current collector tabs (7) differs from one series (6) to the next.
Resumen de: EP4539157A1
The present application provides a positive electrode active material for a sodium-ion battery which includes a core and a shell layer covering the surface of the core, a sodium-ion battery and an electrical device. The core contains sodium-containing positive electrode active material particles, the shell layer has a pore structure, and the shell layer contains a sodiophilic material.
Resumen de: EP4539234A1
This application relates to a separator roll and a preparation method thereof. The separator roll includes a separator body, the separator body having a head end and a tail end in a length direction and being constructed to be capable of winding in the length direction to form a separator roll with the tail end as a roll core. A warning coating is provided on the separator body, the warning coating being configured to be spaced from the tail end by a first preset length. In this way, the warning coating provides a warning in advance for the position of the tail end of the separator body on which the warning coating is located. When the warning coating is detected, it indicates that at that point, there is still a first preset length away from the tail end of the separator body, so that the position of the tail end of the separator body is predicted in advance and adjustment can be performed accordingly, to avoid a lack of separator body caused by insufficient length of its tail end or a non-separator body structure connected to the tail end being directly wound into the electrode assembly, thereby guaranteeing the production quality and winding efficiency of the electrode assembly.
Resumen de: EP4539148A1
A negative electrode composition is provided, including: a silicon-based active material; a conductive material; a binder; and a pH adjuster and having a pH of 5 or more and 7 or less, a negative electrode slurry including the same, a negative electrode, a lithium secondary battery, and a method for preparing the negative electrode composition.The negative electrode composition provides an advantage of simultaneously solving the problems of silicon-based active materials while providing an advantage of achieving excellent adhesion strength by adjusting the pH of the entire negative electrode composition.
Resumen de: EP4539147A1
Disclosed is an electrode composition including an electrode active material, a conductive material, and a binder, in which the binder is composed of a linear polymer and the pH is 5 or more and 7 or less when measured at 25°C, an electrode slurry including the same, an electrode, a lithium secondary battery, and a method for preparing the electrode composition. The electrode composition provides an advantage of simultaneously preventing the generation of hydrogen gas due to surface oxidation reactions during the preparation and storage of the polymer binder-containing electrode composition and/or electrode slurry while providing an advantage of achieving excellent adhesion strength by adjusting the pH of the polymer binder itself.
Resumen de: EP4539146A1
The present application relates to a negative electrode for a lithium secondary battery, a method for manufacturing a negative electrode for a lithium secondary battery, and a lithium secondary battery including a negative electrode.
Resumen de: EP4539167A1
A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes: a positive electrode containing a positive active material containing a tungsten element; and a negative electrode containing carbon-coated solid graphite in which at least a part of a surface of the solid graphite is coated with a carbonaceous material other than graphite, in which a percentage of voids in the carbon-coated solid graphite is 2% or less, and a coating amount of the carbonaceous material in the carbon-coated solid graphite is 12.0% by mass or more.
Resumen de: EP4539205A1
The present application belongs to the technical field of batteries. Provided are a thermal management component, a thermal management system, a battery, and an electric apparatus. The thermal management component is provided with a medium inlet, a medium outlet, and a medium flow channel, wherein the medium flow channel is located in the interior of the thermal management component, the medium flow channel connects the medium inlet and the medium outlet, and the medium flow channel is used for accommodating a fluid medium, so as to adjust the temperature of a battery. The thermal management component is internally provided with a cavity, which is disconnected from both the medium inlet and the medium outlet. A thermal management component using the structure can adjust the temperature of a battery, and can reduce the weight of the thermal management component, such that a thermal management component having a light weight can be realized. The phenomenon of the weight of the thermal management component increasing due to a fluid medium entering a cavity is mitigated during the usage process, and the weight of a battery having the thermal management component can thus be effectively reduced, which facilitates the improvement of the energy density of the battery, thereby improving the usage performance of the battery.
Resumen de: EP4539159A1
This application relates to a negative electrode active material and a preparation method thereof, a secondary battery, and an electric apparatus. The negative electrode active material includes: a core material; and a first coating layer provided on at least part of a surface of the core material, where the first coating layer includes a porous carbon material and nano silicon-based particles, and the nano silicon-based particles are embedded into pore structures of the porous carbon material.
Resumen de: US2025105432A1
A valve arrangement for a battery case includes a valve body adapted for connection to the battery case; a valve member moveable along a valve axis relative to the valve body; a membrane carried with the valve member for allowing gas to move in and out of the battery case when the valve member is in a closed position; and a cap adapted to be mounted to the valve body to inhibit fluid flow.
Resumen de: CN119301074A
A positive electrode active material in which the metal has a composition M in which M consists of Ni in a content x, Mn in a content y, Co in a content z and A in a content a, where A is at least one chemical element other than Li, Ni, Mn, Co and O, where x, y, z and a represent molar contents, where x + y + z + a = 100%, where x > = 70.0%, where 0 < = y < = 30.0%, where 0 < = z < = 30.0%, where 0 < = a < = 5.0%, wherein an X-ray diffraction pattern of the positive electrode active material from a Cu K-alpha X-ray radiation source has a (003) peak at 2 theta = 17.0 DEG to 20.0 DEG and a (104) peak at 2 theta = 43.0 DEG to 46.0 DEG, and wherein the ratio (maximum intensity of the (003) peak)/(maximum intensity of the (104) peak) is at least 1.880. The invention further discloses a method for manufacturing the positive electrode active material.
Resumen de: CN119183441A
A positive electrode active material comprising lithium, a metal other than lithium, and oxygen, where the metal has a composition M, where M is composed of Ni in a content of x, Mn in a content of y, Co in a content of z, and A in a content of a, where x, y, z, and a are expressed as molar contents, where x + y + z + a = 100%, where x > = 70.0%, where 0 < = y < = 30.0%, where 0 < = z < = 30.0%, where 0 < = a < = 2.0%, where 0 < = a < = 2.0%, where 0 < = a < = 2.0%, where 0 < = z < = 30.0%, where 0 < = a < = 2.0%, where 0 < = a < = 2.0%, where 0 < = z < = 30.0%, where 0 < = a < = 2.0%, and wherein an X-ray diffraction pattern of the positive electrode active material has a (003) peak at 2 theta = 17.0 DEG to 20.0 DEG and a (104) peak at 2 theta = 43.0 DEG to 46.0 DEG, and wherein a ratio (maximum intensity of the (003) peak)/(maximum intensity of the (104) peak) is at least 1.530.
Resumen de: EP4539153A1
The present disclosure relates to a manufacturing method of a unit lithium electrode comprising: removing a protective film by an adhesive film having an adhesive layer formed on one side of the substrate film, after cutting a sheet-shaped lithium metal electrode into the size of the unit lithium electrode, wherein the sheet-shaped lithium metal electrode includes a current collector, a lithium metal layer formed on one side or both sides of the current collector, and a protective film attached to the surface of the lithium metal layer, and to a manufacturing method of electrode stacks comprising the same.
Resumen de: EP4539144A1
The present specification pertains to: a negative electrode slurry containing a negative electrode active material, single walled carbon nanotubes (SWCNT), an organic binder, and an organic solvent; a negative electrode including same; and a lithium secondary battery. This negative electrode slurry contains a negative electrode active material using silicon-based particles having high charge/discharge capacity, generates little hydrogen gas during the production and storage of the slurry, and yields excellent capacity retention during charge and discharge.
Resumen de: EP4539145A1
The present application relates to a lithium secondary battery, comprising a silicon-based negative electrode; a positive electrode; a separator; and an electrolyte, wherein the positive electrode or silicon-based negative electrode is a pre-lithiated electrode, wherein a silicon discharge capacity use range of the silicon-based negative electrode is 35% or less of a total negative electrode discharge capacity, and wherein an upper end of the silicon discharge capacity of the silicon-based negative electrode is 57% or less and a lower end thereof is 13% or more.
Resumen de: EP4539244A1
Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. The electrode assembly comprises a first electrode, a second electrode, and a separator interposed therebetween, which are wound around a winding axis to define a core and an outer circumference of the electrode assembly. The first electrode includes a first active material portion coated with an active material layer along a winding direction and a first uncoated portion not coated with an active material layer and exposed beyond the separator, the first uncoated portion includes a plurality of segments that are independently bendable, the plurality of segments are defined as an electrode tab in a bent state along a radial direction of the electrode assembly, and at least a part of the first uncoated portion having the plurality of segments includes a cutting portion extending along a direction parallel to the winding direction.
Resumen de: EP4539232A1
The present disclosure discloses a battery having a structure in which a thermal conductive member is applied to a beading portion. The battery according to one aspect of the present disclosure includes an electrode assembly; a battery housing having an opening formed on one side to accommodate the electrode assembly through the opening and including a beading portion formed by press-fitting the perimeter of an outer circumference at the opening; a top cap configured to cover the opening; and a thermal conductive member configured to fill at least a portion of the space formed by the beading portion at the outer side of the battery housing.
Resumen de: EP4539227A1
A battery pack according to an embodiment of the present disclosure includes a plurality of battery cells stacked in one direction, a pack case that houses the battery cells in an inner space thereof, a cell cover that at least partially surrounds at least a part of the plurality of battery cells in the inner space of the pack case, a busbar assembly that electrically connects the plurality of battery cells, a first sealing member mounted to the busbar assembly and a second sealing member mounted to the cell cover.
Resumen de: WO2023240091A1
Systems and methods for automatic analysis of underlying electrochemical mechanisms of various electrochemistry systems are described. The automatic analysis can reduce manual analysis performed by humans to a minimum. Electrochemical mechanisms of electrochemical systems measured by cyclic voltammograms can be characterized, categorized and ranked. The deep learning-based processes can provide qualitative, semi-quantitative, and/or quantitative results to deconvolute complex electrochemical systems.
Resumen de: WO2023240001A2
Disclosed is a cathode composite layer for an all solid-state battery, comprising particles of a cathode active material (CAM), a solid electrolyte (SE), an electrically conductive carbon fiber coated with an oxide material. In one embodiment, the present disclosure provides an all solid- state battery comprising the cathode composite layer, wherein the battery has an increased capacity and cycle stability due to the reduced SE degradation.
Resumen de: WO2023239599A1
An anode for an energy storage device includes a current collector having an electrically conductive layer and a surface layer disposed over the electrically conductive layer. The surface layer may include a silicate compound. A lithium storage layer overlays and contacts the surface layer. The lithium storage layer may include at least 40 atomic % silicon, germanium, or a combination thereof. The lithium storage layer may be a continuous porous lithium storage layer.
Resumen de: CN119173547A
The present invention relates to a non-linear copolymer comprising repeating units derived from a vinylidene fluoride (VDF) monomer, at least one functionalized comonomer, and optionally at least one fluorinated olefinic comonomer. The non-linear fluorinated copolymer comprises 0.01 to 3.0 mol% of repeating units derived from a functionalized comonomer. The non-linear fluorinated copolymer is useful as an electrode binder in batteries.
Nº publicación: EP4539141A1 16/04/2025
Solicitante:
TECHNISCHE UNIV DRESDEN KOERPERSCHAFT DES OEFFENTLICHEN RECHTS [DE]
Technische Universit\u00E4t Dresden K\u00F6rperschaft des \u00F6ffentlichen Rechts
Resumen de: EP4539141A1
Die Erfindung betrifft ein elektrochemisches Bauelement umfassend eine Anode, eine Kathode, einen Elektrolyten, jeweils einen Stromkollektor und einen Separator, wobei sowohl die Anode als auch die Kathode aus mindestens einem kohlenstoffbasierten Material ist. Der wasserfrei oder nahezu wasserfreie Elektrolyt ist hochkonzentriert und weist mindestens zwei verschiedene Alkalisalze mit unterschiedlichen Anionen auf.
BOPI
Sede Electrónica
