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1452
results.
Updated on
06/05/2025 [07:23:00]
Results 525 to 550 of 1452
Absstract of: US2025140800A1
The present disclosure provides an anode material and a lithium ion battery. The anode material comprises a composite, and the composite comprises a carbon matrix and an active material located in the carbon matrix, the active material comprises primary particles and/or agglomerates and aggregates, and a proportion of the aggregates in a total number of the primary particles, the agglomerates and the aggregates is smaller than or equal to 30%. According to the anode material and the lithium ion battery provided by the present disclosure, the volume expansion of the anode material can be reduced, and the rate performance and the cycle stability of the anode material are improved.
Absstract of: US2025140794A1
Disclosed are a positive electrode active material, a positive electrode including the same, and a rechargeable lithium battery, the positive electrode active material includes a first positive electrode active material including a layered lithium nickel-manganese-based composite oxide and a second positive electrode active material including a lithium-manganese rich composite oxide in which a molar ratio of lithium to a total metal excluding lithium is about 1.1 to about 3 and a manganese content is greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the lithium-manganese rich composite oxide.
Absstract of: US2025140810A1
A positive electrode active material particle according to one aspect of the present invention may include a lithium composite oxide particle and a coating material including a coating element, in which the lithium composite oxide particle is a secondary particle formed by aggregation of two or more primary particles, the coating material is included on a surface of the secondary particle, the coating material is included in a grain boundary between the primary particles, calcium (Ca) is included in the positive electrode active material particle, and a calcium (Ca) content X included in the positive electrode active material is 0.003 mol %≤X≤0.03 mol %.
Absstract of: US2025140436A1
A power storage device with high output is provided, in which the specific surface area is increased while keeping the easy-to-handle particle size of its active material. The power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte. The negative electrode active material layer includes a negative electrode active material which is a particle in which a plurality of slices of graphite is overlapped with each other with a gap therebetween. It is preferable that the grain diameter of the particle be 1 μm to 50 μm. Further, it is preferable that the electrolyte be in contact with the gap between the slices of graphite.
Absstract of: US2025141043A1
The composite diaphragm for a zinc secondary battery, including: a base diaphragm and a conductive film for the zinc secondary battery, the conductive film being connected to one end of the base diaphragm. The conductive film includes a porous polymer film, and pores of the porous polymer film are filled with conductive compositions, the conductive compositions including 1-10 parts by weight of a conductive agent and 0.1-1 part by weight of an additive. The conductive agent includes at least one of graphite, conductive carbon black, acetylene black, or a graphene carbon nanotube; and the additive includes at least one of a tin powder, a tin dioxide powder, a bismuth powder, a bismuth oxide powder, an indium powder, an indium oxide powder, a lead powder, a lead oxide powder, a cadmium powder, or a cadmium oxide powder.
Absstract of: US2025141051A1
A secondary battery includes a positive plate, a negative plate, a porous separator, and a non-aqueous electrolyte. In the secondary battery, lithium metal deposits on the negative plate during charging, and lithium metal dissolves in the non-aqueous electrolyte during discharge. The secondary battery includes: a spacer interposed between at least one of electrode plates of the negative plate and the positive plate and the separator to form a space between the electrode plate and the separator; and a low porosity portion that has a smaller porosity than the separator and that is fitted into the separator in an area where the separator and the spacer overlap when viewed from a laminating direction of the separator and the electrode plate.
Absstract of: US2025141042A1
Described herein is a lithium-ion battery comprising a cathode current collector, a cathode, a paper separator having a surface coated with an anti-shorting layer, an anode, and an anode current collector, wherein the cathode current collector is in contact with the cathode, the cathode is in contact with the paper separator, the paper separator is in contact with the anode, and the anode is in contact with the anode current collector. The lithium-ion battery can be fabricated by printing a cathode ink onto a first side of a paper separator having a surface coated with Al2O3, printing an anode ink onto a second side of said paper separator, printing a cathode current collector ink on the cathode, and printing an anode current collector ink on the anode.
Absstract of: US2025141039A1
A venting system for a battery includes a venting material disposed proximate to each cell of a plurality of electrochemical cells of the battery, the venting material configured to allow materials ejected due to a thermal event to flow through the venting material. The system also includes a venting device disposed in a fixed position relative to the venting material and the plurality of cells, the venting device including a structure for each cell. The structure includes a wall surrounding an area corresponding to a respective cell and extending away from the respective cell, the wall defining a venting path configured to direct ejected materials away from the respective cell.
Absstract of: US2025141057A1
A conductive member includes a first connection body and a second connection body connected to the first connection body. The first connection body is configured to be clamped with an outer peripheral side of one cell of two adjacent battery cells. The second connection body is configured to be in contact with a pole of the other cell of the two adjacent battery cells. The conductive member is clamped with the outer peripheral side of the battery cell through the first connection body. The busbar is configured to clamp the conductive member with the outer peripheral side of the battery cell through the first connection body.
Absstract of: US2025140979A1
A battery system includes at least three battery units. Each of the battery units includes a battery cell and a cooling channel segment, and the cooling channel segment forms part of a cooling circuit of the battery system. The battery units are arranged in one or more rows such that each of the battery units faces at least one of the other battery units in the same or in another row, and at least two of the battery units that do not face each other are connected in series with one another via a respective cooling channel segment.
Absstract of: US2025140984A1
An electric work vehicle includes a battery housing and an air cooling system to cool air within the battery housing. The air cooling system includes a first evaporator and a second evaporator supported by the battery housing, and in a plan view, at least a portion of the first evaporator is forward of at least a portion of the second evaporator in a front-rear direction of the electric work vehicle.
Absstract of: US2025140981A1
A cooling device for an electric battery includes a casing formed from two sheets of flexible material which extend facing one another, the casing defining lateral edges, at least one fluid circulation channel extending between the sheets, and at least one inlet fluidic connector and at least one outlet fluidic connector. The cooling device also includes a rigid support structure having a first part and a second part shaped to clasp at least one of the lateral edges of the casing between them, the second part defining at least one hollowed-out portion intended to allow the casing to protrude from the support structure through said hollowed-out portion.
Absstract of: US2025140980A1
A thermal management arrangement for a battery pack, the arrangement comprising: a housing arranged to accommodate the battery pack, a port arrangement comprising at least one port, the port being arranged to allow for a heat-transfer medium to flow between an interior and exterior of the housing, an adapter arranged to be connected to the port for allowing the heat-transfer medium to flow from the interior of the housing to an interior of a further housing arranged to accommodate a further battery pack, and a hose connector arranged to be connected to the port for allowing a heat-transfer medium supply hose to be connected to the port.
Absstract of: US2025140988A1
A cell module for an electrical energy store of a motor vehicle includes at least two cell packs that are connected together and each have a plurality of interconnected storage cells, a cell module frame having at least two frame portions arranged adjacent to one another each for receiving one cell pack, a cover arranged on the cell module frame for covering the frame portions, and at least one heat-resistant firewall-type barrier arranged on the cover to overlap a transition between the two cell packs. The barrier is designed to divide a space adjacent to the cover into at least two fire compartments in order to prevent hot gas of a cell pack that is flowing into the space from spreading to an adjacent cell pack.
Absstract of: US2025140987A1
A heat insulation sheet contains a first inorganic particle, a second inorganic particle composed of a nanoparticle, and an inorganic fiber. A total content of the first inorganic particle and the second inorganic particle is 30 mass % or more and 90 mass % or less with respect to a total mass of the heat insulation sheet, D50 is 1 μm or more and 100 μm or less, and a ratio (D90/D10) is 10 or more and 1000 or less in a volume-based cumulative distribution of the first inorganic particle.
Absstract of: US2025140791A1
A method of manufacturing fibrillated fluffy powder includes: performing a first mixing to mix an active material and a conductive agent to obtain a first mixture; adding a first binder to the first mixture, performing a second mixing on the first binder and the first mixture to obtain a second mixture; adding a second binder solution to the second mixture, performing a third mixing on the second binder solution and the second mixture to obtain a third mixture; and performing a fourth mixing on the third mixture, heating the mixed third mixture to obtain the fibrillated fluffy powder.
Absstract of: US2025140792A1
A rechargeable lithium battery including a positive electrode, and the positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector, wherein the positive electrode active material layer includes a first positive electrode active material and a second positive electrode active material, the first positive electrode active material includes lithium nickel-based composite oxide and includes secondary particles composed of a plurality of primary particles, and an average particle diameter (D50) of the secondary particles is about 9 μm to about 25 μm, the second positive electrode active material includes lithium nickel-based composite oxide and comprises single particles, and an average particle diameter (D50) of the single particles is about 0.5 μm to about 5 μm.
Absstract of: US2025140445A1
A fire-resistant cable includes a cable core wire, a fire-resistant silicone sheath layer surrounding portions of the cable core wire excluding both ends thereof and ceramicized at high temperatures to support the cable core wire, and a metal case accommodating the cable core wire and the fire-resistant silicone sheath layer. Both sides of the metal case are provided with openings through which opposite ends of the cable core wire are drawn out to the outside. The fire-resistant cable can be used in a battery pack.
Absstract of: US2025140777A1
A method for manufacturing an electrode for a secondary battery, includes: ejecting, by an ejector, a first slurry and a second slurry at a variable ejection ratio that varies in response to control signals from a controller; coating, by a coater, the first slurry and the second slurry ejected at the variable ejection ratio onto a current collector in a longitudinal direction of the current collector; and drying, by a dryer, the first slurry and the second slurry coated onto the current collector.
Absstract of: US2025140780A1
Herein are described processes for and machines adapted for the production of lithium coated conductive substrates having conductive substrate planar surfaces. The process can include providing a lithium coated conductive substrate and then calendering the coated-foil to provide the desired planar surface(s). In a preferable instance, the process provides double sided lithium carrying conducive substrates useful in lithium metal batteries. In another instance, the process provides single or double sided coated-foils carrying polymeric sheets. The machines for the production of the desired products preferably include apparatus for the deposition of lithium metal onto a conductive substrate and one or more calendering systems, preferable within a single vacuum chamber.
Absstract of: US2025141040A1
A binder for a non-aqueous secondary battery separator to form a non-aqueous secondary battery separator excellent in flexibility, etc. is provided. An electricity storage device having excellent long-term storage stability etc. is also provided. The binder for a non-aqueous secondary battery separator includes a polymer (A) of a monomer mixture including a monomer having an acidic functional group, a monomer having an amide group, and an alkyl (meth)acrylate monomer, and a condensation product of a silane compound, and has a glass transition temperature of −60° C. to 60° C. The electricity storage device has a separator substrate provided with at least one protective layer between a pair of electrodes, in which the protective layer includes a polymer of an ethylenically unsaturated monomer, and a silane compound, and the silane compound has no ethylenically unsaturated group but has an alkyl group having 3 to 12 carbon atoms.
Absstract of: US2025140956A1
Some embodiments relate to a method for determining an internal temperature of a battery. The method includes obtaining an initial temperature condition of the battery indicative of battery temperature at an initial time, receiving an electrical current in the battery at a given time after the initial time, and receiving an ambient temperature associated with the battery at the given time. The method includes determining a heat generation rate in the battery based on an internal resistance of the battery and on the received current, and determining a temperature change of the battery at the given time from the initial time, the temperature change being determined based on the initial temperature condition and the heat generation rate. The internal temperature of the battery is determined based on the determined temperature change and the ambient temperature.
Absstract of: AU2024227142A1
Abstract Self-supported porous 3D flexible host anode for lithium metal secondary batteries having a primary coating >5 atomic wt% and in addition to < 5 atomic wt% of at least two additional lithiophilic elements, leading to synergistic plating and stripping effect of the alkali ions, wherein all the coating elements have the capability of forming intermetallic alloys with lithium and/or between themselves within the potential window range of 1.5 V and -0.5 V Vs Li/Li+, having a porosity of at least 70%, and a thickness between 10pm and 100pm, comprising a non-woven, woven or ordered arrangement of constituent fibres with a diameter ranging between 200 nm and 40 pm.
Absstract of: AU2023378026A1
A battery abnormality diagnosis device according to an embodiment disclosed in the present document may comprise: an acquisition unit which acquires voltage-state of charge (SOC) profiles of a plurality of battery units; an identification unit which identifies a designated first number of ranks of the plurality of battery units on the basis of the voltage-SOC profiles; and a diagnosis unit which diagnoses abnormalities in the plurality of battery units on the basis of changes in the ranks.
Nº publicación: WO2025089653A1 01/05/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
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Absstract of: WO2025089653A1
The present invention relates to a cathode active material for an all-solid-state battery, a cathode, and an all-solid-state battery comprising same. More specifically, the cathode active material according to the present invention has formed on the surface thereof a particle layer coated with lithium titanium oxide particles, so that side reactions between the cathode active material and sulfide-based solid electrolyte particles in the cathode are suppressed due to the particle layer, and thus the all-solid-state battery can be stably charged and discharged.
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