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648
resultados
Última actualización
04/08/2026 [07:12:00]
Resultados 475 a 500 de 648
Resumen de: WO2025104031A1
The invention relates to a method for producing a prismatic battery cell (2), wherein an electrode stack (16) is provided with first electrodes (6) and second electrodes which are stacked one over the other. Arresters (10) of the first electrodes (6) protrude beyond an end face of the electrode assembly (16), and arresters (10) of the first electrodes (6) are compacted, wherein the compacted arresters (10) are welded to a contact plate (30), and the contact plate (30) is welded to a contact element (26) of a cell cover (50). The invention additionally relates to such a prismatic battery cell (2).
Resumen de: EP4783264A1
0001 A positive electrode material according to one embodiment of the present invention comprises a positive electrode active material having a surface B/Ni ratio appropriately controlled according to the average particle diameter of the positive electrode active material, thereby alleviating an increase in viscosity of a slurry manufactured by the subsequent process.
Resumen de: EP4783265A1
The positive electrode active material according to one embodiment of the present invention may include a lithium composite transition metal oxide represented by Chemical Formula 1 below: Chemical Formula 1 LiaNibMncTidZreMfO2wherein M is Cr, Nb, Mg, Hf, Ta, La, Sr, Ba, Zn, F, P, S, Y, W, Mo, B, or a combination thereof, and0.8≤a≤1.2, 0.6≤b<1.0, 0.2≤c≤0.5, 0
Resumen de: WO2025064307A1
Thermally conductive compositions may include an isocyanate component containing a blocked isocyanate; an isocyanate-reactive component comprising: one or more polyetheramines, and one or more catalysts selected from a group of carboxylate salts, tertiary amines, amidines, guanidines, and diazabicyclo compounds; and one or more internal mold release agents present in one or more of the isocyanate component and the isocyanate-reactive component, the internal mold release agent being prepared from the reaction of one or more equivalents of fatty acid with a branched C3 to C10 polyol; and a thermally conductive filler, wherein the thermally conductive composition has a thermal conductivity of greater than 1 W/m.K.
Resumen de: EP4783256A1
A negative electrode material for a secondary battery, according to one embodiment of the present invention, is particles comprising: a base material containing silicon (Si) on the basis of an element component; and a surface layer which is positioned on the base material and which contains carbon (C), and has a angularity ratio AR, defined as (1-Con)/Con·100, of 1.00 or less, wherein Con is the convexity obtained by dividing a convex perimeter of the negative electrode material particle by the actual perimeter of the negative electrode material.
Resumen de: WO2025062155A1
The present invention relates to composite materials and processes for forming said composite materials. Such composites can find use in electrode and battery applications. The invention also relates to cathodes comprising the composites.
Resumen de: EP4783257A1
0001 The present embodiments relate to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same. In one embodiment, the positive electrode active material for a lithium secondary battery comprises: a single-particle metal oxide comprising 0.8 mol or more of nickel based on 1 mol of total metals excluding lithium; and a coating layer located on a surface of the metal oxide and comprising cobalt; wherein the metal oxide having the coating layer formed thereon may have a particle diameter (Dn10), corresponding to 10% in a cumulative particle-number distribution, of 1.1 µm or greater.
Resumen de: EP4783303A1
Disclosed in the present application are a battery heating method, apparatus and system, a battery pack, a battery module heating control circuit, an energy storage system, and a readable medium. The battery heating method includes: receiving a battery heating request sent by a second controller of a battery; in response to the battery heating request, acquiring at least one piece of energy information and management information of an energy supply end of an inverter; if the at least one piece of the energy information and the management information meets a preset heating condition, generating a heating permission instruction; sending the heating permission instruction to the second controller of the battery, so that the second controller establishes an electrical connection between a heating apparatus and an output end of the inverter; and controlling the inverter to use the energy supply end to supply power to the heating apparatus to heat the battery. The present application may heat the battery in real time, thereby preventing the battery from operating under low-temperature conditions, ensuring charging and discharging requirements of the battery, saving photovoltaic energy, and extending a service life of the battery.
Resumen de: EP4782404A2
0001 Disclosed is a process for producing battery-grade lithium carbonate from a wastewater solution containing lithium and sodium recovered from a ternary battery, including the following steps: S1: adding activated carbon into the wastewater solution containing lithium and sodium for mixing to obtain a pretreated solution; S2: adding an extracting agent into the pretreated solution for mixing, and performing a first post-treatment for lithium precipitation, to obtain a lithium precipitation slurry and a lithium precipitation mother solution; and S3: performing a second post-treatment for the lithium precipitation slurry, to obtain battery-grade lithium carbonate. In S2, the extracting agent includes 2-ethylhexyl hydrogen-2-ethylhexyl phosphonate and 1-ethyl-3-methylimidazolium tetrafluoroborate. The technical solution described above solves the problem of low recovery rate in lithium carbonate extraction in the related art.
Resumen de: EP4783315A1
0001 A battery cell (100), a battery (200), and an electrical device (1000). The battery cell (100) comprises an insulating film (10) and an electrode assembly (20). The insulating film (10) comprises a bottom wall (11), and a side wall (12) connected to the bottom wall (11), an accommodating space (13) being defined by the bottom wall (11) and the side wall (12), a gap (14) being formed between the side wall (12) and the bottom wall (11), and the gap (14) penetrating through the side wall (12) and being in communication with the accommodating space (13). The electrode assembly (20) is disposed in the accommodating space (13), and abuts against the bottom wall (11).
Resumen de: EP4783252A1
0001 A positive electrode material for a lithium ion battery, a preparation method therefor, a positive electrode piece, and a secondary battery. The positive electrode material comprises an inner core, a first shell layer, and a second shell layer. The first shell layer covers the surface of the inner core, and the second shell layer covers the surface of the first shell layer that is away from the inner core. The inner core comprises a first transition metal oxide having a (003) crystal plane, and the first shell layer comprises a second transition metal oxide. For the first transition metal oxide and the second transition metal oxide at least one of the following are different: the space groups and the materials. The included angle between a first interface and plane occupied by the at least part of the (003) crystal plane in the inner core ranges from 80 degrees to 100 degrees, where the first interface is the surface of the second shell layer away from the first shell laver. The material of the second shell layer comprises an amorphous conductive material.
Resumen de: EP4783263A1
0001 A positive electrode active material according to one embodiment of the present invention may comprise a nickel-rich metal oxide, wherein the nickel-rich metal oxide includes: a first metal element having an oxidation number of +6; a second metal element having an oxidation number of +5; a third metal element having an oxidation number of +4; and a fourth metal element having an oxidation number of +2 or +3.
Resumen de: EP4783253A1
0001 A coated active material 130 of the present disclosure includes an active material 110 and a coating layer 120 coating at least a portion of a surface of the active material 110. The coating layer 120 includes a first layer 111 including a first solid electrolyte and a second layer 112 including a second solid electrolyte. A first layer 111 is positioned between the second layer 112 and the active material 110. The first solid electrolyte contains Ti and F, and the second solid electrolyte contains Ti, F, and O. A proportion of a Ti-O bond in a group of bonds to Ti contained in the second solid electrolyte is higher than a proportion of the Ti-O bond in the group of bonds to Ti contained in the first solid electrolyte.
Resumen de: WO2025061259A1
The present invention relates to a magnetically active current collector comprising: a porous, freestanding, three-dimensional (3D) structure comprising of one layer and/or variety of stacked layers of a one-dimensional (1D) nanomaterial, a two-dimensional (2D) nanomaterial, or a mixture thereof, wherein the 1D and/or 2D material is decorated with one or more zero-dimensional (0D), magnetically active particles; and at least one current collector tab; wherein the at least one tab and the three-dimensional structure are connected, and wherein the decorated nanomaterial of the 3D structure is aligned towards the at least one tab.
Resumen de: EP4783246A1
0001 A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator interposed between the positive electrode and the negative electrode. The negative electrode includes a negative electrode current collector, and a negative electrode active material layer supported on the negative electrode current collector. The negative electrode active material layer contains a negative electrode active material, a binder, a thickener, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200 °C or higher and 500 °C or lower. In a cross section of the negative electrode active material layer, the polymer material is dispersed, forming a plurality of island-like regions. The variance value of a Voronoi diagram when the cross section of the negative electrode active material layer is subjected to a Voronoi tessellation for the island-like regions is 2×10<7> µm<4> or less.
Resumen de: WO2025064222A1
A composition useful for making cathodes is comprised of a disordered rock salt and acid treated carbon. The composition may be made by milling an acid treated carbon with a disordered rock salt in water to form a mixture wherein the disordered rock salt has a disordered rock salt average primary particle size of at most 400 nm and the acid treated carbon has an acid treated carbon average primary particle size less the disordered rock salt primary particle size, removing the water and agglomerating the mixture to form secondary particles having a secondary particle average particle size of at least 1 micrometer to 20 micrometers. The acid treated carbon is treated with an inorganic acid such as concentrated nitric acid.
Resumen de: EP4782560A1
0001 A method for recovering metals from battery powder resulting from lithium-ion battery waste, the battery powder containing at least copper, aluminum, and cobalt and/or nickel, the method including: an acid leaching step of leaching the metals in the battery powder into an acidic leaching solution to obtain a metal-containing solution containing at least aluminum ions and cobalt ions and/or nickel ions; and a neutralization step of increasing a pH of the metal-containing solution to precipitate and remove aluminum ions, wherein in the acid leaching step, a plurality of leaching stages are repeated multiple times, the plurality of leaching stages including: a first leaching stage of leaching the metals in the battery powder into an acidic leaching solution, terminating leaching before copper elution, and separating a leached residue to obtain a leached solution; and a second leaching stage of leaching the metals in the leached residue into an acidic leaching solution, and terminating leaching after copper elution to obtain a leached solution, wherein the leached solution obtained in the first leaching stage is used as the metal-containing solution, and the leached solution obtained in the final leaching stage among the plurality of leaching stages is used as the acidic leaching solution in the next first leaching stage, wherein in the acid leaching step, a phosphate ion source and/or a calcium ion source is included in the acidic leaching solution to precipitate aluminu
Resumen de: EP4782559A1
0001 A method for recovering metals from battery powder resulting from lithium ion battery waste, the battery powder containing at least copper, lithium, and cobalt and/or nickel, the method including: an acid leaching step of leaching the metals in the battery powder into an acidic leaching solution to obtain a metal-containing solution containing at least lithium ions and cobalt ions and/or nickel ions; and a metal separation step of separating at least cobalt ions and/or nickel ions from the metal-containing solution, wherein in the acid leaching step, a plurality of leaching stages are repeated multiple times, the plurality of leaching stages including: a first leaching stage of leaching the metals in the battery powder into an acidic leaching solution, terminating leaching before copper elution, and separating a leached residue to obtain a leached solution; and a second leaching stage of leaching the metals in the leached residue into an acidic leaching solution, and terminating leaching after copper elution to obtain a leached solution, wherein the leached solution obtained in the first leaching stage is used as the metal-containing solution, and the leached solution obtained in the final leaching stage among the plurality of leaching stages is used as the acidic leaching solution in the next first leaching stage, wherein after the metal separation step, an acidic or neutral separated solution is obtained, the acidic or neutral separated solution containing at least
Resumen de: WO2025064797A1
A system includes a plurality of energy storage nodes, a power conversion system (PCS), a plurality of sensors to detector or monitor system data that includes component data from or about one or more components of the energy storage system, and a control and management system. Each of the energy storage nodes include a battery storage element. The component data includes battery data, PCS data, or a combination thereof. Control and management system is configured to receive or store the system data; apply analytical models to system data to predict or identify an atypical condition relating to a weakness, damage, or a changed condition in the one or more components of the energy storage system; and responsive to the atypical condition, optimize a maintenance plan for the energy storage system. Components of the energy storage system can include a battery storage element, a power conversion system, or a transformer.
Resumen de: EP4783261A1
0001 The objective of the present invention is to provide: a method for producing a precursor of a positive electrode active material for a lithium-ion secondary battery which contributes to a reduction in GHG emissions and is easily pulverized; and a method for producing a positive electrode active material for a lithium-ion secondary battery. In addition, the objective of the present invention is to provide: a precursor which can be easily pulverized; and a positive electrode active material for a lithium-ion secondary battery which has a stable crystal structure and good electrochemical characteristics. The method for producing a precursor of a positive electrode active material for a lithium-ion secondary battery includes: a mixing step for mixing a metallic nickel powder and a lithium-containing compound; and an oxidation step for oxidizing the metallic nickel powder after mixing, wherein the precursor obtained after the oxidation step includes a lithium metal oxide having a peak at 2θ=43.5-44.0° as measured by X-ray powder diffraction.
Resumen de: EP4783206A1
0001 Provided are an electrode (10), a cell (20), a module (31), and a pack (30) which can improve the energy density and output characteristics of a power storage device. The electrode includes a current collector (11) and a material-mixed layer (12) attached to the current collector, and the material-mixed layer contains an Si-containing material (14) and a carbon-based active material (15). In a region (16) of a cross section of the material-mixed layer taken in a stacking direction, which region extends 5 µm in a thickness direction from an interface (13) between the material-mixed layer and the current collector, the ratio R1 of an area of the Si-containing material to the sum of the area of the Si-containing material and an area of the carbon-based active material is 10% or greater and 40% or less. The cell includes an electrode including a lithiated material-mixed layer.
Resumen de: WO2025064411A1
A method for forming smooth film stack layers for energy storage devices is disclosed herein. In one example, a method of smoothing an outer layer of a film stack of an energy storage device comprises forming the outer layer on a current collector of the film stack and energizing a heat source disposed over the outer layer of the film stack to heat the outer layer. The heating of the outer layer of the film stack causes reflow of the outer layer to reduce defects on an outer layer surface.
Resumen de: EP4782262A2
Disclosed is a battery performance management system and method using an electric vehicle charging station. The battery performance management server collects battery performance evaluation information including identification information and operation characteristic accumulative information of a battery, identification information and driving characteristic accumulative information of the electric vehicle, and latest charging characteristic information of the battery from a plurality of charging stations through a network. Also, the server determines a current SOH corresponding to the collected battery performance evaluation information by using an artificial intelligence model that is trained in advance to receive the battery performance evaluation information and output a SOH of the battery. Also, the server determines a latest control factor corresponding to the current SOH, and transmits the latest control factor to the charging station through the network so that the charging station may transmit the latest control factor to a control system of the electric vehicle to update the control factor.
Resumen de: EP4783322A2
The present disclosure relates to a battery module using insulating oil, and a battery pack including the same include a battery cell stack, in which battery cells each formed of edge surfaces and flat surfaces are stacked, electrode leads formed so as to protrude from the battery cells, a frame formed of the upper, lower, left, and right surfaces and covering the upper, lower, left, and right surfaces of the battery cell stack, and end plates covering front and rear surfaces of the battery cell stack, wherein space parts are formed between the edge surfaces and the frame and between the edge surfaces and the end plates, and insulating oil for cooling the plurality of battery cells is filled and flows in the space parts, and the insulating oil makes contact with the battery cells and the electrode leads.
Nº publicación: EP4783284A2 29/07/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: EP4783284A2
The present invention relates to an electrode and a secondary battery including the same, the electrode including an electrode active material layer which comprises an electrode active material and a conductive agent, the conductive agent comprising multi-walled carbon nanotube units and carbon nanotube structures in which single-walled carbon nanotube units are bonded to each other, wherein the carbon nanotube structures have an average diameter of 2 nm to 200 nm.
BOPI
Sede Electrónica
