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1535
resultados
Última actualización
02/10/2025 [07:24:00]
Resultados 425 a 450 de 1535
Resumen de: US2025300457A1
The present disclosure provides a modular energy storage and distribution system comprising a plurality of battery sleds. Each of the battery sleds comprises an array of battery cells, wherein the array of battery cells stores and supplies electrical energy. A microprocessor establishes a distributed network and manages operations in a master-slave configuration upon system initialization. A first battery sled assumes a master role, and subsequent battery sleds assume slave roles. A unified cable structure couples each of the battery sleds, wherein the unified cable structure comprises power supply lines and a data transmission cable. The data transmission cable facilitates communication between the at least one microprocessor of each of the battery sleds, and the unified cable structure comprises shielding to mitigate electromagnetic interference.
Resumen de: US2025300183A1
An electrode plate includes a substrate including a base layer and a first conductive layer and a second conductive layer disposed on respective surfaces of the base layer. An active material layer is disposed on at least one surface of the substrate. At least one incised portion of the first conductive layer, resulting from incision of a portion of the first conductive layer that penetrates the base layer, is combined to the second conductive layer.
Resumen de: US2025300219A1
The present invention relates to a method for manufacturing a solid sulfide electrolyte by mixing of the solid electrolyte precursor comprising Li2S, Li3PS4 and LiX, such as LiCl. The present inventors have demonstrated that a low-energy mixing step is sufficient to prepare the solid electrolyte mixture, which after subjection to the heat-treatment affords the solid sulfide electrolyte having an argyrodite-type crystal structure in high purity.
Resumen de: US2025300216A1
A negative electrode material for a lithium-ion secondary battery comprising graphite particles satisfying, in a ratio of R value, which is an intensity ratio Id/Ig of a maximum peak intensity Ig in the range of 1580 cm−1 to 1620 cm−1 and a maximum peak intensity Id in the range of 1300 cm−1 to 1400 cm−1 in a Raman spectrum obtained by a Raman spectroscopy measurement, a ratio of the particles with R≥0.2 is 10% by number or more, and an average value of a half width of Id in the top 10 spectra with R values is 60 cm−1 or less.
Resumen de: US2025300176A1
The present disclosure relates to lithium nickel phosphate ternary glasses and to the method to obtain them. The disclosure also relates to the preparation and use of lithium nickel phosphate ternary glasses as active materials of positive electrodes, in particular of metal-ion accumulators, as well as the active materials and electrodes.
Resumen de: US2025300173A1
A positive electrode includes a positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer including a positive electrode active material. The positive electrode active material includes core particles including a layered lithium nickel-manganese-based composite oxide including about 0.1 mol % to about 2 mol % of cobalt based on 100 mol % of a total metal content in the layered lithium nickel-manganese-based composite oxide, excluding lithium, and an aluminum coating layer on the surface of the core particles, wherein, in a dQ/dV graph of voltage during standard charging and discharging, evaluated under a constant current of 0.2 C, an applied current of 0.5 mA to 0.7 mA, and where 1 C=200 mAh/g, a point where a tangent line drawn at a first inflection point meets the line where dQ/dV=0 is in a voltage range of about 3.68 V to about 3.70 V.
Resumen de: US2025300214A1
A method of heat-pressing a secondary battery electrode assembly includes: manufacturing an electrode assembly; inputting the electrode assembly into a flexible electrolyte bag containing an electrolyte; and heat pressing, from the outside of the electrolyte bag, the electrode assembly immersed in the electrolyte to bind electrode plates of the electrode assembly.
Resumen de: US2025300184A1
A cathode active material layer includes conductive active material particles individually with a core and a coating on a surface of the core, wherein the core comprises a cathode active material, and the coating comprises an electrically conductive material; and a binder including fibers that form a three-dimensionally networked mesh of fibers. The cathode active material layer is free or substantially free of electrically conductive particles other than the conductive active material particles. The conductive active material particles are accommodated in the 3D mesh of the binder, and adjacent ones of the conductive active material particles abut one another within the 3D mesh, in which the electrically conductive material of the coating of one of the conductive active material particles makes at least one contact with the electrically conductive material of the coating of one or more adjacent ones of the conductive active material particles.
Resumen de: US2025300193A1
The present invention relates to a size-sieving enhanced zinc-iodine flow battery system for mitigating water/hydrated ion cluster migration. The zinc-iodine flow battery system includes an anolyte; a catholyte; an anode configured to be in contact with the anolyte; a cathode configured to be in contact with the catholyte; and a separator interposed between the anode and the cathode. The IMS-based membranes with selective transport of ions/molecules can address the longstanding issues of polyiodide cross-over and water migration. This improvement enables the development of long-duration hybrid Zn-based flow batteries.
Resumen de: US2025300167A1
Provided is an improved method for forming a battery comprising a cathode and electrolyte. The method of forming the cathode comprises forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid. The digestible feedstock is digested to form a first metal salt in solution wherein the first metal salt precipitates as a salt of deprotonated multi-carboxylic acid thereby forming an oxide precursor and a coating metal is added to the oxide precursor. The oxide precursor is heated to form the coated lithium ion cathode material. The electrolyte is void of salts and additives.
Resumen de: US2025300175A1
A cathode active material precursor according to embodiments of the present invention includes a composite hydroxide particle in which primary precursor particles are aggregated. The primary precursor particles include a particle having a triangular shape in which a minimum interior angle is 30° or more and a ratio of a length of a short side relative to a length of a long side is 0.5 or more. A cathode active material and a lithium secondary having improved high temperature stability is provided using the cathode active material precursor.
Resumen de: US2025300259A1
The present invention relates to a method of removing and safe disposal of electrolyte from all types of spent lithium ion batteries in a commercially feasible manner. Electrolyte, lithium hexafluorophosphate (LiPF6) is highly soluble in water and thus is removed from the spent LIBs during shredding in presence of water. In aqueous solution, LiPF6 is greatly dissociated into its ions and formation of HF is more likely. This method is simple to operate and easy to scale up. This method provides greater recovery yielding 99.7%, 63.4% and 75.5% for fluorine (F), lithium (Li) and phosphorous (P), respectively. Additionally, the method is clean, green and environment friendly.
Resumen de: US2025300212A1
A secondary battery includes an electrode wound body, a positive electrode current collector plate, and a negative electrode current collector plate. The electrode wound body includes a stacked body wound along a longitudinal direction thereof. The positive and negative electrode current collector plates are opposed to each other with the electrode wound body interposed therebetween in a width direction orthogonal to the longitudinal direction. A negative electrode includes a negative electrode current collector and a negative electrode active material layer. The negative electrode includes a negative electrode covered region and a negative electrode exposed region. The negative electrode exposed region is joined to the negative electrode current collector plate. A distance between an edge of the negative electrode active material layer and the negative electrode current collector plate in the width direction decreases from a winding inner periphery side toward a winding outer periphery side of the electrode wound body.
Resumen de: US2025300211A1
A secondary battery manufacturing device according to various embodiments of the present disclosure may include: a holding device configured to elastically support an electrode assembly; an clastic member which is disposed on one side of the holding device to apply an elastic force to the holding device; and a first sensing member configured to detect an clastic force applied by the clastic member.
Resumen de: US2025300159A1
A negative electrode manufacturing device for a secondary battery includes a dual slot die and a coating roll. The dual slot die includes an upper block, a middle block, a lower block, a first slot, and a second slot. The first slot is a gap between the upper block and the middle block for discharging a first negative electrode slurry, and the second slot provided is a gap between the middle block and the lower block for discharging a second negative electrode slurry. The coating roll is disposed opposite the first and second slots and transfers the electrode sheet. The upper block, the middle block, and the lower block comprise an upper lip, a middle lip, and a lower lip forming an outlet at each front end and exhibit magnetism of the same polarity. A method of manufacturing using the same is also provided.
Resumen de: US2025300190A1
A secondary battery includes a stacked electrode assembly with positive and negative electrode plates separated by a separator. The outermost electrode plate is a single-sided positive electrode plate composed of a first positive electrode current collector and a positive electrode active material layer. The current collector consists of a polymer layer and a conductive layer on the interior-facing surface, with the active material layer disposed on the conductive layer. Other positive electrode plates in the assembly are double-sided and include a second positive electrode current collector with active material layers on both sides. At least one of these double-sided current collectors is made of metal.
Resumen de: US2025298086A1
A lithium-metal-battery degradation-state determination device includes a processor. The processor is configured to acquire resistance value information relating to a resistance value obtained by applying a voltage to a lithium metal battery including a negative electrode containing lithium, and determine a degradation state of the lithium metal battery based on a first map, created in advance and indicating a relationship between a thickness of the negative electrode and the resistance value, and the acquired resistance value information.
Resumen de: US2025298084A1
Battery inspection methods are provided. The provided battery inspection methods include battery inspection methods which comprise: a data acquisition step of acquiring impedance spectrum data for a finished secondary battery in order to identify cracks in the electrodes of the secondary battery through non-destructive inspection; a first function acquisition step of acquiring a first function, having the log scale of the measurement frequency as an independent variable and the absolute value of impedance as a dependent variable, from the impedance spectrum data through function fitting; a second function acquisition step of acquiring a second function by differentiating the first function with respect to the log scale of the measurement frequency; and a battery state determination step of determining the state of the secondary battery on the basis of the second function.
Resumen de: US2025298085A1
A battery pack includes at least one battery cell, a verification circuit connected to the at least one battery cell and including a load, and a controller configured to control the verification circuit to output information about an impedance of the load in response to a first command and control the verification circuit to output information about an impedance of the at least one battery cell in response to a second command.
Resumen de: US2025297374A1
A carbon dioxide process apparatus includes: a recovery device that recovers carbon dioxide; an electrochemical reaction device that electrochemically reduces the carbon dioxide; and an electric energy storage device, the recovery device includes: a carbon dioxide absorption portion, the electric energy storage device includes: an electric energy storage portion constituted of a nickel hydrogen battery, at a time of discharging, an electrolytic solution is circulated in an order of the carbon dioxide absorption portion, a negative electrode-side flow path of the electric energy storage portion, the electrochemical reaction device, a positive electrode-side flow path of the electric energy storage portion, and the carbon dioxide absorption portion, and at a time of charging, the electrolytic solution is circulated in an order of the carbon dioxide absorption portion, the positive electrode-side flow path, the electrochemical reaction device, the negative electrode-side flow path, and the carbon dioxide absorption portion.
Resumen de: US2025297400A1
An object is to provide a surface-treated steel foil having high yield point strength and high fatigue strength. This is solved by means of a surface-treated steel foil has a steel sheet and an iron-nickel alloy layer formed on at least one side of the steel sheet. A <001> pole density in an inverse pole figure of a rolling direction on the side that has the iron-nickel alloy layer is higher than a <111> pole density, and the <001> pole density in the inverse pole figure of the rolling direction on the side that has the iron-nickel alloy layer is higher than a <101> pole density.
Resumen de: US2025300233A1
The present application provides a battery, a method for manufacturing the battery, and an electric device. The battery includes a positive electrode sheet, a negative electrode sheet, and at least one laminated structure disposed on either the surface of the positive electrode sheet facing the negative electrode sheet or the surface of the negative electrode sheet facing the positive electrode sheet. The laminated structure includes an ion transport layer and an electron insulation layer stacked together. The battery does not include a separator.
Resumen de: US2025300174A1
Provided is a cathode material and a preparation method therefor, and a secondary battery. The cathode material is a lithium nickel cobalt oxide composite oxide. In an XRD pattern of the cathode material, a characteristic peak of a crystal face (104) includes a (104)−Kα1 diffraction peak and a (104)−Kα2 diffraction peak after peak splitting, a separation value between the (104)−Kα1 diffraction peak and the (104)−Kα2 diffraction peak is a, and 0.7≤α≤2.0. The cathode material has suitable particle size, good particle strength and sufficient internal defects, which are conducive to reducing the phenomenon of polarization of the cathode material, such that the secondary battery based on the cathode material has both better cycle stability and rate performance.
Resumen de: US2025300230A1
Use of a pyrosulfate-boron trifluoride composite metal salt in an electrolyte solution. The use of the pyrosulfate-boron trifluoride composite metal salt having at least one structure is added to an electrolyte solution at an addition amount of 0.1 wt % to 15.0 wt %. The pyrosulfate-boron trifluoride composite metal salt is obtained by means of the reaction of a pyrosulfate and boron trifluoride gas or a boron trifluoride complex. A pyrosulfate-boron trifluoride composite lithium salt is further applied to a lithium-ion secondary battery including a negative electrode containing an active material with a specific surface area of 0.1 m2/g to 20 m2/g.
Nº publicación: US2025300220A1 25/09/2025
Solicitante:
KUNMING UNIV OF SCIENCE AND TECHNOLOGY [CN]
Kunming University of Science and Technology
Resumen de: US2025300220A1
A preparation method and an application of an interpenetrating solid electrolyte interface are provided. According to the present disclosure, a lithium metal electrode plate is prepared into a lithium oxide plating layer in an air atmosphere, and then a lithium sulfide plating layer is prepared by soaking in a lithium polysulfide plating solution, and then a lithium sulfide/lithium oxide interpenetrating solid electrolyte interface is obtained by drying at normal temperature.
BOPI
Sede Electrónica
