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965
resultados
Última actualización
01/09/2025 [07:09:00]
Resultados 250 a 275 de 965
Resumen de: US2025273762A1
A battery system having a housing configured to receive a battery cell that is configured to generate thermal energy. The housing includes a first wall and a second wall, both of which are positioned proximate to the battery cell. The first wall and the second wall form in part a cell compartment. The battery system further includes a unitary heat sink having a first portion embedded into the first wall and a second portion embedded into the second wall.
Resumen de: US2025273660A1
The present disclosure provides a method for making a coated single crystalline cathode active material. The continuous hydrothermal manufacturing process may include several steps: a) preheating a metal solution, a lithium solution, and a coating solution; b) generating a first mixture by mixing the metal solution and the lithium solution at below a critical point of the first mixture; c) generating a second mixture by mixing the first mixture and the coating solution above a critical point of the second mixture to synthesize the coated single crystalline cathode active material; and d) filtering out the coated single crystalline cathode active material.
Resumen de: US2025273750A1
This application relates to a negative current collector. At least one surface of the negative current collector is overlaid with a LixM alloy layer, in which 0
Resumen de: US2025273678A1
Complex particles for a negative electrode active material according to the present disclosure have no problem with reduced capacity and output by virtue of sufficient electrochemical reaction sites between a solid electrolyte and an electrode active material. The complex particles according to the present disclosure include carbon particles of a carbon material such as flaky graphite, which are spherical in shape by shape modification, and a solid electrolyte and a conductive material filled between the particles, and thus have the increased contact area between the active material and the solid electrolyte increases, and ion conduction and electron conduction paths extended and maintained to the inside of the active material particles.
Resumen de: US2025273679A1
Anode material, preparation method thereof, and battery. Anode material includes graphite and carbon layer located on at least part of surface of graphite. Particle surface and particle section of anode material are respectively tested by Raman spectroscopy, peak area ratio of D characteristic peak within range of 1300 cm−1 to 1350 cm−1 to G characteristic peak within range of 1500 cm−1 to 1580 cm−1 is ID/IG, ratio of ID/IG measured on the particle surface is A, and ratio of ID/IG measured on particle section is B, and 1.22
Resumen de: US2025273837A1
An electrode assembly, the electrode assembly including a first electrode, a first separator, a second electrode, and a second separator wound in a stacked state, wherein, the second electrode comprises an uncoated portion formed at an outermost turn, the second separator covers a part of the uncoated portion, and the uncoated portion comprises a covering portion covered with the second separator, and an exposed portion connected to the covering portion and exposed from the second separator.
Resumen de: US2025273677A1
A graphitic carbon material for a negative electrode of a lithium ion secondary battery, in which a crystallite size Lc (002) determined by X-ray diffraction is from 35 nm to 150 nm, and in a particle size distribution measured by a laser diffraction scattering method, in a case in which a volume cumulative distribution curve is drawn from a small diameter side, a ratio (D90/D10) of a particle size (D90) at which a cumulative amount is 90% to a particle size (D10) at which a cumulative amount is 10% is 8.0 or less.
Resumen de: US2025270110A1
Example embodiments include positive electrode active materials, manufacturing methods thereof, and rechargeable lithium batteries. The positive electrode active material includes a positive electrode active material having a first particle that has a first surface and a second surface and includes a lithium composite oxide, and a first coating layer on the first surface. A surface area ratio of the first surface to the second surface is in a range of about 3:7 to about 8:2. The first coating layer has a cobalt amount that is greater than a cobalt amount of the first particle. The cobalt amount of the first coating layer is in a range of about 30 at % to about 100 at %.
Resumen de: US2025270111A1
A positive electrode active material with excellent charge and discharge rate characteristics and a secondary battery using the positive electrode active material are provided. The positive electrode active material in which a crystallite size calculated using an XRD pattern is greater than or equal to 150 nm; the ratio of nickel to the total number of transition metal atoms is higher in an inner portion than in a first surface portion and a second surface portion; the ratio of the number of atoms of at least one element selected from cobalt and manganese to the total number of transition metal atoms is higher in the second surface portion than in the inner portion; and the concentration of at least one of additive elements is higher in the first surface portion than in the inner portion and the second surface portion is provided.
Resumen de: US2025270107A1
A composition MxABO4 can include: a composition ABO4, wherein M is selected from the group consisting of: Ca, Mg, and Na, wherein M is intercalated with ABO4, wherein x is greater than or equal to 0, wherein A includes at least one selected from the group consisting of: Dy, Er, Sm, Nd, Tm, Pr, Gd, Sc, Y, Eu, Ho, Tb, Bi, Lu, La, Yb, Ce, Zr, Hf, Th, U, Ce, In, Tl, Pa, Pu, Ba, Pb, and Sr, wherein B includes at least one selected from the group consisting of: B, P, V, Cr, As, Si, Ge, N, Nb, Mo, Ru, Sb, W, Re, Bi, Mn, Fe, Se, Tc, Sn, and Co, and wherein the composition ABO4 has a tetragonal structure.
Resumen de: US2025270104A1
A pre-sodium treated positive electrode material for copper-zinc-based sodium ion battery and method of preparing the same are provided. The method includes the steps of obtaining a mixed solution containing copper-zinc-based elements through wet pre-sodium first, then conducting spray drying of the mixed solution containing copper-zinc-based elements to obtain precursor powder of positive electrode material for copper-zinc-based sodium ion battery, and then mixing the precursor powder with a sodium source for sintering, coating and crushing to obtain positive electrode material for copper-zinc-based sodium ion battery. The pre-sodium treated positive electrode material for copper-zinc-based sodium ion battery thus prepared introduces weakly oxidizing zinc and nickel elements on the basis of the copper-based material, reducing the use of highly oxidizing copper and iron elements. After being prepared into a battery, the oxidation of metal ions in the electrochemical environment is reduced overall.
Resumen de: US2025270103A1
Described is a sodium iron (II)-hexacyanoferrate (II) material, wherein the particles of the sodium iron (II)-hexacyanoferrate (II) material have a particle diameter D50 value within the range of from 4 μm to 50 μm and a BET specific surface area within the range of from 0.1 m2/g to 10 m2/g.
Resumen de: US2025273672A1
Disclosed is a positive active material for a rechargeable lithium battery including secondary particles of a nickel-based transition metal oxide composed of an inner portion and an outer portion, wherein the inner portion has a dense structure having a higher density than the outer portion, the secondary particles of the nickel-based transition metal oxide have a plurality of protruding portions on the surface thereof, and the positive active material has an area ratio of 25% to 30% occupied by the protruding portions calculated by Equation 1 based on a cross-section of the secondary particles of the nickel-based transition metal oxide.
Resumen de: US2025273828A1
A power storage device includes a stacked electrode assembly and a seal member. An electrode plate (bipolar electrode) having a positive electrode layer and a negative electrode layer is stacked between a positive-electrode termination electrode and a negative-electrode termination electrode with a separator being interposed between the electrode plate and each of the positive-electrode termination electrode and the negative-electrode termination electrode so as to form a stacked electrode assembly. An uncoated portion of the negative-electrode termination electrode (current collector) and an uncoated portion of the electrode plate (current collector) extend in a stacking direction of the stacked electrode assembly together with the separator adjacent to each of the uncoated portions, and are folded so as to be stacked on the positive-electrode termination electrode with the separator being interposed between each of the uncoated portions and the positive-electrode termination electrode, thereby forming a crushing-time discharging portion.
Resumen de: US2025273737A1
A secondary battery and an electric device comprising the secondary battery. The secondary battery comprises: a negative electrode sheet and an electrolyte, where the negative electrode sheet comprises a silicon-carbon composite material and the silicon-carbon composite material has a three-dimensional network crosslinked pore structure; and the electrolyte comprises a carboxylate compound.
Resumen de: US2025273735A1
A method for producing a sulfide solid electrolyte includes supplying a sulfide solid electrolyte material to a heat treatment apparatus and heat-treating the sulfide solid electrolyte material. The heat treatment apparatus includes: a heating portion configured to heat-treat the sulfide solid electrolyte material; a rotating member configured to convey the sulfide solid electrolyte material while heating the sulfide solid electrolyte material by the heating portion; a stationary fixed member that is disposed on an end portion side in an axial direction of the rotating member; and a pressurizing chamber configured to pressurize a boundary portion between the rotating member and the fixed member. The sulfide solid electrolyte material is heat-treated while controlling a pressure in the pressurizing chamber to a pressure higher than a pressure in the heating portion and an outside air pressure.
Resumen de: US2025273675A1
A composite positive electrode active material is disclosed. The composite positive electrode active material includes a first lithium iron manganese phosphate type material and a second lithium iron manganese phosphate type material. The first lithium iron manganese phosphate type material has a nanosheet structure, and a ratio of an area of a (010) crystal plane of the first lithium iron manganese phosphate type material to a total area of crystal planes of the first lithium iron manganese phosphate type material is A1%. The second lithium iron manganese phosphate type material has a spherical and/or quasi-spherical structure, and a ratio of an area of a (010) crystal plane of the second lithium iron manganese phosphate type material to a total area of crystal planes of the second lithium iron manganese phosphate type material is A2%. The composite positive electrode active material satisfies A1>A2.
Resumen de: US2025273809A1
An energy storage system and a power-consuming apparatus. The energy storage system include a box and a battery module. The battery module includes electrochemical cells, a module housing, a partition plate, and an air conduit. The partition plate is disposed in the module housing, the partition plate divides the module housing into a heat dissipation cavity and a smoke exhaust cavity, and the air conduit communicates with the smoke exhaust cavity by using the first mounting hole. An exhaust vent may be further disposed on the box, and the air conduit communicates with the exhaust vent. In this way, smoke generated by thermal runaway of the electrochemical cells may enter the air conduit through the first mounting hole of the module housing, and then be discharged to the outside of the box through the exhaust vent.
Resumen de: US2025273808A1
A battery system includes a battery pack including a plurality of battery cells, each having a pair of electrode terminals and a venting valve between the electrode terminals, the battery cells being arranged in at least two cell stacks extending adjacent to each other along a stacking direction, the electrode terminals and the venting valves of the battery cells face a first side of the battery pack; and a cell contacting unit (CCU), on the first side of the battery pack, the CCU including a plurality of busbars electrically connecting adjacent rows of the electrode terminals of battery cells of two adjacent cell stacks, the CCU being configured to cover both adjacent rows of the electrode terminals of the battery cells of the adjacent cell stacks and less than half of an area between the electrode terminals of each of the battery cells of the adjacent cell stacks.
Resumen de: US2025273807A1
A battery includes a tubular battery cell including an anode, a cathode and a solid electrolyte. The battery cell defines a central through hole. The battery further includes a container. The battery cell is inside of the container. The container includes a fluid inlet configured to provide fluid to the central through hole and a fluid outlet configured to receive fluid from the central through hole.
Resumen de: US2025273806A1
A battery cell, a battery and an electric device are provided. The battery cell includes electrode assemblies, a shell, and a pressure relief mechanism. The shell is used to accommodate the electrode assemblies. The pressure relief mechanism is provided on a lower portion of the shell and integrally formed with the shell. During normal use of the battery cell, the pressure relief mechanism is located at the lower portion of the shell.
Resumen de: US2025273810A1
Provided are a battery module, and a battery pack and a vehicle including the same. A battery module according to an embodiment includes a battery cell stack in which a plurality of battery cells are stacked, a case in which the battery cell stack is accommodated, the case including a first outlet through which gas is discharged, an exhaust path member mounted on the case to provide a gas discharge path through which gas is discharged but a flame is prevented from leaking out, and a cover coupled to the case to cover the exhaust path member, the cover including a second outlet through which gas moving through the exhaust path member is discharged, wherein a covering portion included in the case is provided to adjust a length.
Resumen de: WO2025175722A1
An electrolyte-injecting system, and a battery cell electrolyte-injecting and discharging method. The electrolyte-injecting system comprises an electrolyte-injecting device (110), a superordinate computer (120), a first control device (130), and a weighing device (140); the electrolyte-injecting device (110) is used for performing electrolyte injection on a battery cell set in a pallet during a battery cell electrolyte-injecting process; the superordinate computer (120) is used for collecting and locally recording electrolyte injection data of battery cells on the basis of the positions of the battery cells in the pallet upon the completion of the electrolyte injection of the battery cells in the battery cell set; and the first control device (130) is used for sending a weighing trigger signal to the superordinate computer (120) in response to detecting that the battery cells having undergone electrolyte injection enter a weighing area of the weighing device (140), so that the superordinate computer (120) sends a first weighing instruction to the weighing device (140), and sends to a manufacturing execution system (MES) an electrolyte-injecting and discharging request on the basis of the locally acquired electrolyte injection data of the battery cells when a first weighing result sent by the weighing device (140) is within a preset weight range. In this way, the electrolyte injection data can be quickly and reliably acquired and uploaded to the MES during the battery cell ele
Resumen de: WO2025175991A1
A battery electrode sheet (30), a secondary battery and an electric device. The battery electrode sheet (30) comprises: an electrode sheet body (31), which has a length direction (L) and a width direction (W) perpendicular to the length direction; and N tabs (32), which are spaced apart in a region between a winding start end of and a winding termination end of the electrode sheet body (31), and comprise a first tab to an Nth tab, wherein each tab (32) is connected to one side of the electrode sheet body (31) in the width direction (W) and has a width size in the length direction (L) of the electrode sheet body (31), and the width sizes of the nth tab to the (n+k)th tab are greater than the width sizes of the remaining tabs, N being a positive integer greater than 3, n+k being less than N, and both n and k being positive integers greater than 1. In this way, the negative impact of misalignment of the tabs (32) can be reduced.
Nº publicación: WO2025175718A1 28/08/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2025175718A1
A battery case-cover welding system and a spot inspection method therefor. The system comprises a calibration block, the calibration block comprising: a battery profiled member, and the battery profiled member comprising a top surface, first side surface connected to the top surface by means of a first edge, a second side surface connected to the top surface by means of a second edge, a third side surface connected to the top surface by means of a third edge, and a fourth side surface connected to the top surface by means of a fourth edge; a first surface feature unit, a second surface feature unit, a third surface feature unit, and a fourth surface feature unit, which are respectively arranged close to the first edge, the second edge, the third edge, and the fourth edge, and are all located on the top surface; and a first side-surface feature unit, a second side-surface feature unit, a third side-surface feature unit, and a fourth side-surface feature unit, which are respectively arranged close to the first edge, the second edge, the third edge, and the fourth edge, and are respectively located on the first side surface, the second side surface, the third side surface, and the fourth side surface. By means of the spot inspection method, whether a failure occurs in the battery case-cover welding system can be determined.
BOPI
Sede Electrónica
