Resumen de: US2024283100A1
An energy storage element includes an air- and liquid-tight housing. The housing includes a metallic, cup-shaped housing part with a housing bottom and a terminal opening. The housing further includes a lid component welded into and closing the terminal opening of the cup-shaped housing part, the lid component including a metallic lid plate and a negative terminal passed through an aperture in the lid plate and electrically insulated from the lid plate. The energy storage element also includes an electrode-separator assembly having a first flat terminal end face, a second flat terminal end face, an anode with an anode current collector having a first edge and a second edge parallel thereto, and a cathode with a cathode current collector having a first edge and a second edge parallel thereto. A contact sheet metal member is seated on the first edge of the anode current collector and connected thereto by welding.
Resumen de: US2024282931A1
Coated electrode active material particles for lithium-ion batteries that can suppress side reactions between the electrolytic solution and the coated electrode active material particles, and that can prevent the internal resistance value of the lithium-ion battery from increasing even when they are used in a high temperature environment, can be provided. Coated electrode active material particles for lithium-ion batteries in which at least a part of the surface of the electrode active material particles is coated with a coating layer, wherein the coating layer contains particles made of polymer having lithium-ion conductivity, a coating resin, and a conductive assistant.
Resumen de: US2024283050A1
A water cooling plate assembly includes: a harmonica reed plate, a first current collector, and a second current collector. The first current collector is disposed at a first end of the harmonica reed plate in the length direction. A first current collecting space communicating with a port at one end of the plurality of cooling channels is formed in the first current collector. A first liquid inlet and a first liquid outlet through which the cooling liquid flows into and out of the first collecting space respectively are formed on the first current collector on two sides in a thickness direction of the harmonica reed plate respectively.
Resumen de: US2024282929A1
Provided in the embodiments of the present invention is an anode active substance for secondary batteries, which substance comprises a composite material. The composite material includes silicon particles, a ceramic material formed on at least some areas of the surface of the silicon particles, and a conductive carbon composite material formed on the ceramic material to cover the silicon particles and the ceramic material. In addition, further provided herein are a method for preparing an anode active substance and a lithium secondary battery prepared on the basis of the anode active substance.
Resumen de: US2024283035A1
To provide a solid-state battery comprising an electrode laminate comprising a negative electrode current collector, a lithium metal layer, a solid electrolyte layer, a positive electrode material mixture layer, and a positive electrode current collector sequentially laminated, wherein one surface of the solid electrolyte layer faces the lithium metal layer, and an other surface faces the positive electrode material mixture layer; a resin or resin composition is disposed on outer periphery portions of the negative electrode current collector, the lithium metal layer, and the solid electrolyte layer of the electrode laminate; and a space formed between the lithium metal layer and the solid electrolyte layer formed by chemical conversion of the electrode laminate is filled with the resin or resin composition.
Resumen de: US2024282930A1
The present invention relates to an anode active material comprising a shell including metal particles coated in whole or in part with a metal carbide, a method for preparing same, and a lithium secondary battery comprising same.
Resumen de: WO2024171689A1
Provided is a metal complex compound which is a precursor of a positive electrode active material and can prevent the deterioration of cycle characteristics of the positive electrode active material even when a secondary battery is repeatedly charged and discharged. The metal complex compound comprises, at least, nickel (Ni) and boron (B), wherein at a molar ratio (Li/M) of lithium (Li) to a metal element (M) contained in the metal complex compound of 1.01, a β value of a fitting function of time T and crystal size S1, Y = α × log10X + β, for a calcined product of the metal complex compound obtained by maintaining the metal complex compound at a calcination temperature of 730 °C for a predetermined time in an oxygen atmosphere is at most 300.0, the fitting function being a single logarithmic graph where the time T (unit: minutes) maintained at the calcination temperature of 730 °C is on the X-axis and the crystallite size S1 (unit: Å) of the (003) plane is on the Y-axis.
Resumen de: WO2024168606A1
The embodiments of the present application provide an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly comprises: a first pole piece, the first pole piece comprising a plurality of first layered segments and at least one first bent segment; wherein the first bent segment comprises a plurality of first notches arranged along a second direction, the second direction being the direction in which the first bent segment extends; the plurality of first notches comprise first edge notches disposed on two ends of the first pole piece along the second direction, and a first middle notch located in a middle area of the first pole piece; and the length of the first edge notches along the second direction is greater than the length of the first middle notch along the second direction. The electrode assembly, battery cell, battery, and electrical device of the embodiments of the present application improve the machining efficiency and quality pass rate of the electrode assembly.
Resumen de: WO2024171603A1
A busbar module (10) is provided on electrode surfaces of a plurality of battery cells. The busbar module comprises: a substrate (50); a plurality of busbars (80) each having a busbar body (60) and a connection piece (70); and a solder (100) that fixes the substrate and the connection piece to each other. A guide structure (78) having a guide surface (79) which guides the solder is provided to the connection piece. The solder adheres to the guide surface and to at least a portion of continuous surfaces (73, 75) which form the outer shell of the connection piece and which are continuous to the guide surface.
Resumen de: US2024278253A1
One general aspect of the present disclosure is directed to a method of manufacturing a nano powder from a lithium containing material (“LCM”). An additional general aspect of the present disclosure relates to a system for manufacturing the LCM nano powder. A further general aspect of the present disclosure pertains to the LCM nano powder. A further general aspect of the present disclosure relates to converting a plurality of metals, a plurality of metal oxides, or a combination thereof into a mechanical alloy using the manufacturing method and system of the present disclosure. The mechanical alloy may be a powder, e.g., a nano powder, and may or may not include the LCM nano powder.
Resumen de: US2024279771A1
The disclosed process relates to a process for selectively purifying a lithium product stream from an aqueous lithium salt-containing solution in a continuous mode, said process comprising the steps of: a) introducing said aqueous lithium salt-containing solution to an arrangement of three or more packed-bed columns in series each filled with a lithium selective sorbent, wherein at least two of said three or more columns are at an adsorption stage, with one at a leading lithium chloride adsorption stage and one or more at a trailing lithium chloride adsorption stage, and at least one of said three or more columns is simultaneously at a lithium chloride desorption stage; b) flowing said aqueous lithium salt-containing solution through said at least two of said three or more columns at a leading lithium chloride adsorption stage and a trailing lithium chloride adsorption stage to adsorb lithium chloride from the aqueous lithium salt-containing solution and respectively form a fully-saturated sorbent and a partially-saturated sorbent; c) flowing a desorbent fluid through said at least one of said three or more columns at a lithium chloride desorption stage to desorb lithium chloride from the fully-saturated sorbent in a column from a leading lithium chloride adsorption stage of a previous cycle in an eluate stream; and d) recovering a lithium product stream from the eluate stream, wherein when the lithium selective sorbent in said column at a leading lithium chloride adsorption
Resumen de: US2024277194A1
A cleaner includes a suction motor that generates suction force, a dust separation unit that is disposed under the suction motor and separates dust from air, a handle disposed behind the suction motor, and a battery disposed under the handle and behind the dust separation unit to supply power to the suction motor.
Resumen de: US2024280539A1
An apparatus and method for inspecting lithium precipitation may form a magnetic field around a battery cell to be inspected to induce an eddy current and may compare measured impedance of the battery cell with standard data to detect lithium plating in the battery cell, thereby providing high stability and reliability.
Resumen de: US2024279522A1
An immersion cooling system includes electrical componentry, a heat transfer fluid, and a reservoir. The electrical componentry is at least partially immersed in the heat transfer fluid within the reservoir, and a circulating system circulates the heat transfer fluid out of the reservoir, through a circulating pipeline, and back into the reservoir. The heat transfer fluid contains one or more phosphate ester compounds and exhibits favorable properties in a circulating immersion cooling system, such as low flammability, low pour point, high electrical resistivity and low viscosity for pumpability.
Resumen de: US2024282953A1
Disclosed is a cathode active material for a lithium secondary battery comprising one-body primary particles of lithium transition metal complex oxide and having a cumulative relative particle amount (%) of particles having a particle size of 1.5 μm or less, which is 25% or less of a total amount of particles in a particle size distribution (PSD) graph (X-axis: particle size (μm), Y-axis: relative particle amount (%)).
Resumen de: US2024283097A1
An all-solid-state battery according to the present disclosure includes: a support that includes one surface; a plurality of unit battery cells that are arranged in a first direction that is parallel with the surface of the support, each including a first electrode portion and a second electrode portion with a solid electrolyte portion therebetween in a second direction that is perpendicular to the surface of the support; and an electrode connection portion that extends in the second direction, and connects first electrode portions and second electrode portions of different unit cells in series.
Resumen de: US2024282971A1
The present disclosure belongs to the technical field of electrode assemblies, and in particular, relates to an electrode assembly and a secondary battery. The electrode assembly comprises a cathode electrode plate, an anode electrode plate, and a separator, wherein the cathode electrode plate satisfies: 2.2<(a2−0.68a+1)*b/5c<31.2, and/or the anode electrode plate satisfies: 0.6<(d2−0.86d+1)*e/100f<8.2. Regarding the electrode assembly of the present disclosure, rational combination is performed according to the porosity of the cathode electrode and/or anode electrode active coating, the particle size of the active materials, and the mass percentage content of conductive carbon, so that the prepared electrode assembly and battery have a longer service life while being able to continuously provide a high-power output power.
Resumen de: US2024282975A1
A device for preparing a current collector assembly includes: a first feeding apparatus configured to provide a transfer film, the transfer film having a base layer and a metal layer formed thereon; a second feeding apparatus configured to provide a bottom film, the bottom film having a first surface and a second surface opposite to the first surface; a coating apparatus configured to applying an adhesive on the first surface to obtain a base film; and a transfer apparatus configured to transfer the metal layer to the base film to obtain the current collector assembly.
Resumen de: US2024282955A1
In a spectrum obtained by X-ray photoelectron spectroscopy measurement of surfaces of particles of the positive electrode active material for the lithium secondary battery, the positive electrode active material has a peak X derived from a Li element having a peak top at 54.5±3.0 eV; when, upon waveform separation of the peak X derived from the Li element into a peak (A) having a peak top at 53.5±1.0 eV and a peak (a) having a peak top at 55.5±1.0 eV, an atomic ratio calculated from the peak (A), a peak derived from the Ni element, and a peak derived from the element M is defined as Li(A)/(Ni+M), and the BET specific surface area of the positive electrode active material for the lithium secondary battery measured by a nitrogen adsorption method is defined as PS, the value of {Li(A)/(Ni+M)}/PS is 0.4 to 2.6 g/m2.
Resumen de: US2024282958A1
In various embodiments, provided are an electrode plate, a method for preparing the same, a secondary battery, a battery module, and a battery pack comprising a main body region and an isolation region, where the isolation region is arranged on both sides of the main body region along a width direction of the electrode plate, the isolation region is provided with an insulating strip coating, and the main body region is provided with an active material layer. An outer edge of the active material layer is confined to a junction between the main body region and the isolation region, and a contact angle between a slurry forming the active material layer and the insulating strip coating is more than 90°, thereby improving the problem of diffusion of the active material slurry along the width direction of the electrode plate, and reducing a defective rate of the electrode plate.
Resumen de: US2024283048A1
A cooling system of a battery pack including a metallic coated steel sheet wherein the metallic coating includes aluminium, zinc, optionally silicon and unavoidable impurities coming from the production process.
Resumen de: US2024282949A1
A positive electrode plate includes a positive electrode current collector and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector. The positive electrode active material layer includes a first positive electrode active material Li1+xMnyM2-yO4-tAt and a second positive electrode lithiation material Li1+rMn1-pNpO2-sBs. The positive electrode plate satisfies 1.5≤R·P/Q≤30, where R represents resistance of the positive electrode plate in Ω; P represents compacted density of the positive electrode plate in g/cm3; and Q represents single-sided surface density of the positive electrode plate in g/1540.25 mm2.
Resumen de: US2024283044A1
The present invention relates to a process for recycling battery materials, in particular lithium ion/polymer batteries, and to the subsequent use of the useful materials recovered by way of the process according to the invention.
Resumen de: WO2024168546A1
The present invention belongs to the technical field of battery materials, and particularly relates to a Prussian blue analogue nano positive electrode material, a preparation method therefor and a sodium ion battery. A general chemical formula of the Prussian blue analogue nano positive electrode material is NaxMyFe(CN)6z, wherein M is a transition metal element, 0
Nº publicación: WO2024168477A1 22/08/2024
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2024168477A1
Provided in the present application are a secondary battery and an electric device. The secondary battery comprises a negative electrode sheet, wherein the negative electrode sheet comprises a negative current collector and a negative membrane layer. The negative membrane layer is provided with a first surface away from the negative current collector and a second surface arranged opposite the first surface, wherein the thickness of the negative membrane layer is denoted by H; the region within a thickness range from the second surface of the negative membrane layer to 0.3H is a first region of the negative membrane layer, and the region within a thickness range from the first surface of the negative membrane layer to 0.3H is a second region of the negative membrane layer; and the first region comprises a first active material, the second region comprises a second active material, the first active material comprises a first silicon-based material, and the first silicon-based material comprises secondary particles formed by aggregation of primary particles.