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659
resultados
Última actualización
03/08/2026 [08:20:00]
Resultados 350 a 375 de 659
Resumen de: US20260221621A1
0000 In one aspect, an electrode sheet includes a body. The body includes a coated part and a tab part in a width direction of the body. The tab part includes a plurality of tabs disposed in a length direction of the body, and each of the tabs is connected to the coated part. The body extends in the length direction between a first end and a second end (4). The tab part includes a first region located at the first end in a direction from the first end to the second end. The plurality of tabs includes a plurality of first tabs located in the first region. In the direction from the first end to the second end, widths of the plurality of first tabs in the length direction of the body gradually decrease.
Resumen de: US20260221531A1
A recovery method for recovering an electrode active material from a treatment target electrode including an electrode mixture containing the electrode active material and a binder. The recovery method includes a separation step of bringing a first treatment liquid containing an aromatic hydrocarbon compound in a reduced state and a metal ion and a second treatment liquid containing water into contact with the treatment target electrode to separate the electrode active material from the treatment target electrode.
Resumen de: US20260221443A1
This positive electrode active material is a composite oxide having a crystal structure belonging to a space group R-3m and represented by a composition formula of Li1+aNibMncXdOe, in which: X is at least one type selected from the group consisting of typical elements and transition metal elements other than Li, Ni, and Mn; a≤1.15, 0.35≤b≤0.70, 0.30≤c≤0.65, and 0≤d≤0.07 are satisfied; and e is a value satisfying electrical neutrality. The positive electrode active material has a value (α×β) of 0.090 or lower, which is the product of a Ni mixing rate α determined through Rietveld analysis and a strain β determined using the Williamson-Hall method.
Resumen de: US20260221556A1
Top cover of a battery pack including a metallic coated steel sheet covered on both sides by an organic coating, wherein the organic coating is thinner on the inner side of the battery pack than on the outer side of the battery pack.
Resumen de: US20260221517A1
0000 A jelly-roll electrode assembly having a first separator, a negative electrode, a second separator, and a positive electrode, with a flexible film having a tensile strength of 18 kgf/mm<2 >to 25 kgf/mm<2 >disposed between the first separator and the second separator is provided. A method for manufacturing the jelly-roll electrode assembly and a secondary battery including the same are also provided.
Resumen de: US20260221442A1
The present disclosure relates to a lithium secondary battery including: a positive electrode; a negative electrode; and a separator provided between the positive electrode and the negative electrode, wherein the positive electrode includes, as a positive electrode active material, lithium composite transition metal compound particles including nickel, cobalt, and manganese, in the form of single particles, the negative electrode includes silicon-based particles as a negative electrode active material, and a specific surface area of the silicon-based particles is four times or greater than a specific surface area of the lithium composite transition metal compound particles.
Resumen de: US20260221533A1
0000 A battery module includes a battery cell stack containing a plurality of battery cells; a module frame that includes a bottom portion and two side surface portions facing each other, and accommodates the battery cell stack therein; a thermally conductive resin layer disposed between one surface of the module frame and the battery cell stack; a pad disposed on at least one end of the one surface of the module frame; and a reinforcement material disposed between the battery cell stack and the pad, wherein the reinforcement material fills a space between the battery cell stack and the pad.
Resumen de: US20260221450A1
0000 An anode active material, an anode composition, an anode, a lithium secondary battery, a battery module, and a battery pack, each including porous silicon carbon composite particles. The anode active material includes porous silicon-carbon composite particles including a porous carbon scaffold and silicon provided on at least a portion of an interior or surface of the porous carbon scaffold, wherein: an amount of the silicon is 35 to 60 parts by weight based on 100 parts by weight of the silicon-carbon composite particles, a specific surface area of the silicon-carbon composite particles is 20 m<2>/g or less, and a contact angle of the silicon-carbon composite particles with water, measured on a surface of a flat film after forming the flat film, is 90 degrees or greater.
Resumen de: US20260219332A1
An embodiment of a battery management apparatus includes a reference information storage unit configured to store a reference profile including a reference negative electrode profile; a profile generating unit configured to generate a negative electrode profile for each battery of a plurality of batteries using the reference profile and a charging and discharging profile for each battery; a characteristic information generating unit configured to generate a plurality of negative electrode change ratios, each negative electrode change ratio comparing the negative electrode profile of a battery to the reference negative electrode profile; a calculation processing unit configured to calculate a relative difference between a first negative electrode change ratio of the plurality of negative electrode change ratios and a second negative electrode change ratio of the plurality of negative electrode change ratios; and a diagnosing unit configured to diagnose a state of the plurality of batteries using the relative difference.
Resumen de: US20260217990A1
The present invention relates to a composition comprising a) a polyorganosiloxane functionalized with at least two Si—H groups; b) a polyorganosiloxane functionalized with at least two vinyl groups; c) micron-sized mica particles; and d) a hydrosilylation catalyst; wherein the concentration of the mica particles is in the range of from 90 to 200 parts by weight per 100 parts by weight of polyorganosiloxanes a) and b). The composition of the present invention is useful as coating material that can be applied to a battery pack casing or cover to protect against the consequences of thermal runaway.
Resumen de: US20260217534A1
0000 A process for the recovery of a useful material from a battery, comprising the steps of: comminuting, discharging and shredding a battery to form a feed stream comprising anode material, cathode material and an electrolyte; removing the electrolyte from the feed stream; separating the anode material and cathode material from the feed stream into distinct material streams using (electro)magnetic separation; and treating the anode material stream to obtain a graphite product and/or treating the cathode material stream to obtain a cathode active material product.
Resumen de: US20260221543A1
Systems and methods of operating aluminum-air electrochemical cells are provided, in which, following operation of the electrochemical cell(s), the alkaline electrolyte is removed from the cell(s) and a mixture of water with oxygen-rich organic solvent(s) is introduced to protect the aluminum anodes from corrosion by the electrolyte residues. For example, the cell(s) may be flooded with the mixture and then drained, or the mixture may be circulated through the cell(s). During stand-by, the mixture may be used to flood or to be circulated through the cell(s) and drained, to further enhance the operability of cell(s) during operation.
Resumen de: US20260221506A1
0000 According to the present invention, it is possible to provide an electrolytic solution containing a polycarbonate resin, wherein: the polycarbonate resin comprises a structural unit (A) derived from a monomer represented by general formula (1) below, and an end structure of the polycarbonate resin comprises an alkenyl group; and
the electrolytic solution contains a lithium salt, a radical initiator, and a crosslinking agent.
0000
(In general formula (1), R<21>-R<24 >and R<25>-R<28 >each independently represent hydrogen, fluorine, chlorine, bromine, iodine, or an optionally substituted C1-C20 alkyl group, C6-C12 aryl group, C2-C12 alkenyl group, C1-C5 alkoxy group, or C7-C17 aralkyl group).
Resumen de: US20260221459A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material, a binder, 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 positive electrode active material layer, the polymer material forms and is dispersed as a plurality of island-shaped regions. The BET specific surface area of the polymer material is 10 m2/g or less.
Resumen de: US20260221417A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material, a binder, 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 positive electrode active material layer, the polymer material forms and is dispersed as a plurality of island-shaped regions. The average particle diameter of the polymer material is 50 μm or less.
Resumen de: US20260221454A1
0000 A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector. The positive electrode active material layer contains a positive electrode active material, a binder, 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 positive electrode active material layer, the polymer material forms and is dispersed as a plurality of island-shaped regions. The average perimeter of the island-shaped regions is 60 μm or less.
Resumen de: US20260221416A1
0000 The present invention provides composite particles consisting of a Si—C composite material capable of achieving a reduction in volume expansion of an electrode during charging in a lithium-ion rechargeable battery. The present invention includes composite particles including a carbon material and silicon, wherein a true density (He true density) by dry density measurement using helium gas is 1.30 g/cm<3 >or more and 2.00 g/cm<3 >or less, a true density (BA true density) by wet density measurement using 1-butanol is 1.00 g/cm<3 >or more and 1.64 g/cm<3 >or less, and the He true density is greater than the BA true density.
Resumen de: US20260221485A1
An electrode tracking device for forming a marking on an electrode tab of an electrode being transferred in one direction, or identifying the marking formed on the electrode tab, includes: a tracking part configured to move in at least one of horizontal and vertical directions, and including at least one tracking unit selected from a marker and a reader; a guide part including a first guide with an inclined surface at one end supporting one surface of the electrode tab, and a second guide with an inclined surface positioned corresponding to the inclined surface of the first guide supporting the other surface of the electrode tab; an interlocking part including a first support member coupled to the first guide at one end and to the tracking part so that the other end can slide in upward and downward direction, and a second support member coupled to the second guide at one end and to the tracking part so that the other end can slide in upward and downward direction; and a foreign matter accommodating part open to an upper part, coupled to either the tracking part or the interlocking part.
Resumen de: US20260221549A1
A pouch film laminate includes a base material layer; a gas barrier layer; and a sealant layer sequentially laminated. The base material layer includes a polyamide-based film, and, in a melting peak of the polyamide-based film which is obtained by differential scanning calorimetry (DSC), a ratio (H/A) of a height (W/g) (H) of the peak to a melting enthalpy (W·sec/g) (A) of the polyamide-based film is 0.03 sec−1 or more.
Resumen de: US20260221634A1
A cell stack assembly may include a cell stack including a plurality of cells, the plurality of cells having drawn out electrode leads, a busbar frame assembly including a plurality of busbars electrically connected to the electrode leads of the plurality of cells, a busbar frame supporting a busbar of the plurality of busbars, and ribs spanning between the plurality of busbars, and an insulating cover coupled to the busbar frame, the insulating cover being configured to cover the busbar frame assembly. In addition, the insulating cover may include a separation wall member formed at a location corresponding to a rib of the busbar frame assembly.
Resumen de: US20260221427A1
A negative electrode for a lithium secondary battery includes a current collector, a first negative electrode active material layer, and a second negative electrode active material layer. The second negative electrode active material layer includes a plurality of concave portions indented toward the first negative electrode active material layer and a plurality of non-concave portions, the plurality of the concave portions and the plurality of the non-concave portions are alternately arranged in a horizontal direction, and a surface of the second negative electrode active material layer has a pattern formed by a plurality of steps.
Resumen de: US20260221538A1
A rechargeable battery pack comprises first and second battery cell holders (62a, 62b), each having a set of cell holder terminals connected to the battery cell terminals, and a set of circuit board terminals (64a, 64b) arranged along a circuit board connector terminal edge (66a, 66b) of the respective battery cell holders (62a, 62b). The circuit board terminals (64a), terminal connection areas of the circuit board (46), and the circuit board connector terminal edges (66a, 66b) of the battery cell holders (62a, 62b) are embedded in said coherent body (80) of potting resin. A gasket compression ridge (78d) of a potting shell (78) compresses a potting gasket (52) to keep user interface elements (48) and a wireless transceiver module free from potting.
Resumen de: US20260221435A1
0000 A negative electrode including a negative electrode current collector having a roughened surface, and a negative electrode active material provided on the negative electrode current collector, wherein negative electrode active material contains negative electrode active material particles including a compound of lithium, silicon, and oxygen, negative electrode active material particles are represented by SiO
Resumen de: US20260219324A1
0000 A data processing unit is configured to calculate, on a time-series basis, the voltage difference between a reference voltage and the minimum voltage of a plurality of cells or cell blocks included in a battery pack and connected in series. A determination unit is configured to, when an increasing rate of the voltage difference is equal to or greater than a threshold, determine that a micro short circuit has occurred in the cells or cell blocks having the minimum voltage. The data processing unit calculates the increasing rate of the voltage difference by using voltage data in a period in which the State-Of-Charge (SOC) of the battery pack is within a predetermined SOC range.
Nº publicación: US20260219329A1 30/07/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Resumen de: US20260219329A1
0000 A battery temperature estimation apparatus includes a data obtaining unit configured to obtain electrochemical impedance spectroscopy (EIS) data of a battery unit, a data extracting unit configured to extract a parameter value of a designated element of an equivalent circuit of the battery unit, based on the EIS data, and an identifying unit configured to identify, based on reference parameter values according to different temperatures, obtained based on reference battery units of a same type as the battery unit, a temperature value corresponding to the extracted parameter value and identify the temperature value as a temperature value of the battery unit at a time of obtaining the EIS data.
BOPI
Sede Electrónica
