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1668
results.
Updated on
16/05/2025 [07:20:00]
Results 1350 to 1375 of 1668
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: US2025136389A1
A battery plate handling apparatus comprises a horizontal elongate rack and gripper modules mounted so as to be movable along the rack. Each gripper module comprises a gripper unit carrier mounted on the rack and a gripper unit mounted on the gripper unit carrier for gripping groups of battery plates. The gripper modules comprise at least two adjacent configurable modules each comprising a gripper unit sub-mounting pivotally mounted on a respective carrier so as to pivot around a vertical axis spaced to one side of the rack. The gripper unit sub-mounting comprises a horizontal sub-rack on which a pair of gripper units are mounted such that the horizontal separation between the gripper units can be varied. The horizontal sub rack of one of the sub-mountings is higher than the horizontal sub-rack of the other sub-mounting. A process for configuring the apparatus is also disclosed.
Absstract of: US2025134365A1
A battery assembly for a medical device includes a housing that is configured to removably couple to the medical device. The battery assembly also includes a battery within the housing, a first terminal exposed on an outside of the housing, and a power button that forms part of the housing. The battery assembly further includes a battery control circuit within the housing, wherein the battery control circuit is configured to disable an output path from the battery to the first terminal when the power button is in an off position.
Absstract of: US2025134175A1
A power supply unit for an aerosol inhaler includes: a power supply configured to supply power to a load that atomizes an aerosol source; a temperature sensor configured to detect a temperature of the power supply; a controller; and a circuit board. The circuit board includes: a first surface; a second surface; a power supply layer in which a power supply path is formed; and a ground layer. The power supply layer and the ground layer are provided between the first surface and the second surface. The temperature sensor is mounted on the second surface, and at least one of the power supply path and the ground path is not formed in a region which overlaps the temperature sensor as viewed from a first direction, the first direction being a direction in which the first surface and the second surface are opposed to each other.
Absstract of: US2025136400A1
The present application discloses a winding method and a winding system, and relates to the technical field of battery fabrication. The winding method includes: obtaining a first parameter and a second parameter of each electrode assembly on a winding needle in real time, the first parameter being any one of a number of winding layers, a sheet length and a winding roll diameter, and the second parameter being one or both of the remaining two of the number of winding layers, the sheet length and the winding roll diameter; comparing the second parameters respectively with corresponding preset parameter ranges, the preset parameter ranges being the ranges of the second parameters corresponding to the first parameters of preset standard models corresponding to the electrode assemblies; and adjusting, in response to the second parameter exceeding the corresponding preset parameter range, sheets to be wound of the corresponding electrode assembly.
Absstract of: US2025138093A1
A method and a device for estimating a battery SOC on the basis of meta-learning are disclosed. The disclosed battery SOC estimation method comprises the steps of: collecting training data for multiple reference batteries; using a first training parameter of a local SOC estimation model for each of the reference batteries, the model being trained through the training data, to perform meta-learning for a global SOC estimation model of estimating an SOC value of a target battery; and using the global SOC estimation model having been subjected to the meta-learning to estimate the SOC value of the target battery.
Absstract of: US2025140811A1
A positive electrode active material includes a plurality of core particles including a layered lithium nickel-manganese-based composite oxide having a nickel content (e.g., amount) of greater than or equal to about 60 mol % based on 100 mol % of a total metal composition of the lithium nickel-manganese-based composite oxide excluding lithium, and a coating layer located on the surface of the core particle and containing Al and Ti. Also disclosed are a method of preparing the positive electrode active material, and a positive electrode and rechargeable lithium battery including the same.
Absstract of: US2025140816A1
The invention relates to a secondary cell comprising an anode, a cathode, optionally a separator, and an electrolyte, characterized in that the anode comprises an active material or composition of active materials, wherein at least one active material or composition of active materials functions as a current collector, wherein the active material or composition of active materials comprises carbon, silicon, and/or metal oxide(s), and wherein the anode does not comprise any additional current collector. A vehicle comprising said secondary cell is also claimed.
Absstract of: US2025140835A1
A cathode active material powder for lithium secondary batteries is provided, containing a core particle consisting of a lithium metal composite oxide, and a coating layer coating at least a part of the core particle, in which the coating layer contains an oxide containing at least one element A selected from the group consisting of Nb, Ta, Ti, Al, B, P, W, Zr, La, and Ge, and the following (1) and (2) are satisfied. (1) a substance amount of the element A per unit area, which is calculated from analysis results by inductively coupled plasma mass spectrometry and a nitrogen adsorption BET method, is 3.0×10−4 mol/m2 or less, and (2) a standard deviation of a compositional ratio of the element A, which is calculated from a value obtained from an SEM-EDX analysis result, is 4.6 or more and 8.2 or less.
Absstract of: US2025140834A1
One embodiment of the present invention provides a positive electrode active material for a sodium secondary battery, including an O3-type sodium composite transition metal oxide containing at least sodium, a transition metal, and a doping metal, wherein the sodium composite transition metal oxide is a secondary particle in which a plurality of primary particles are aggregated, and an aspect ratio of the primary particle ranges from 1:1 to 1:2.5.
Absstract of: US2025140836A1
The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a single-crystal type positive electrode active material in which the peak of the particle size distribution observed in the volume cumulative particle size distribution graph is shifted toward Dmax, which is the maximum particle size, and the sharpness of the peak of the particle size distribution is high, and a lithium secondary battery including the same.
Absstract of: US2025140932A1
A stamp or punch for dicing or singulating solid-state battery cells and method of separating solid-state battery cells on a sheet, roll or strip using the stamp or punch are disclosed. The method includes placing the sheet, the roll or a plurality of the strips and the stamp or punch face-to-face, and applying sufficient pressure to at least one of (a) the sheet, the roll or a carrier supporting the strips and (b) the stamp or punch to separate the sheet or roll into strips, or the plurality of strips into another plurality of strips, multi-cell units, or individual battery cells. the stamp or punch includes a base, blades in parallel with each other on the base, and guides or pegs on the base and completely outside all space between the outermost blades. Stamps for singulating the solid-state battery cells from the sheet, roll or multi-column strips is also disclosed.
Absstract of: US2025140894A1
A method of controlling a cycling pressure of a secondary battery can include assembling the secondary battery by stacking a cathode, a separator, and an anode in order; activating the secondary battery by applying a pressure of about 5 MPa or less; and cycling the secondary battery by applying the pressure of about 5 MPa or less.
Absstract of: US2025140962A1
The disclosure presents methods for monitoring of thermal activities within a vehicle's battery pack, using sparse sensors throughout the battery pack. The sparse sensors can be thermal sensors. Situations where a thermal sensor is in the location of a thermal event as well as where there is no thermal sensor in the region of a thermal event are contemplated. Each thermal sensor tracks temperature changes in specified regions of the battery, facilitating an overview of the pack's thermal health. By analyzing data from multiple thermal sensors, the system can help to identify areas that exhibit temperature deviations. If fluctuations beyond predetermined thresholds are detected, data can be routed to external systems, allowing for an external evaluation and response.
Absstract of: US2025140902A1
A cellulose-based all-solid-state polymer electrolyte separator, a preparation method thereof and an application thereof are provided. The cellulose separator is used as a skeleton, and solid-state polymer electrolyte is injected into pores of the separator using atomic layer deposition and dipping-coating processes. In addition, the polymer electrolyte remains in an amorphous structure at high temperatures by using an instantaneous quenching method, and ionic conductivity of the solid-state polymer electrolyte at room temperature is improved. After a surface of the solid-state polymer electrolyte separator is further coated with an alumina nanolayer, an electrochemical window width of the separator is significantly increased, and the solid-state polymer electrolyte separator is prevented from decomposing under a high voltage.
Absstract of: US2025140972A1
A cooling member includes an upper plate, a lower plate, and cooling water contained into an inner space between the upper plate and the lower plate. Sealing parts are formed at edges of the upper plate and the lower plate, wherein a coupling groove is formed inside the sealing part. A fastening part coupled by a fastening member is formed outside the sealing part.
Absstract of: US2025136466A1
The present specification relates to a method of preparing a positive electrode active material for a lithium secondary battery, and more particularly, to a positive electrode active material for a lithium secondary battery with excellent electrical conductivity and energy density, a method of preparing the same, and a positive electrode and a secondary battery including the same.
Absstract of: US2025136467A1
Provided is a method of preparing a positive electrode active material for a sodium secondary battery, including: a) inputting a sodium composite transition metal oxide and a water washing solution into a reactor and stirring the reactants to dissolve residual sodium on the surface of the sodium composite transition metal oxide in the water washing solution; b) inputting cobalt salt into the reactor and performing stirring to co-precipitate cobalt hydroxide onto the sodium composite transition metal oxide particles; and c) heat-treating the sodium composite transition metal oxide particles on which the cobalt hydroxide is formed to form a cobalt coating layer on the particles. In addition, provided is a positive electrode active material for a sodium secondary battery, which is prepared by the above preparation method and includes a plurality of sodium composite transition metal oxide particles including a cobalt oxide coating layer formed on the surface and/or inside the particles, wherein the plurality of sodium composite transition metal oxide particles have a relative standard deviation (RSD) of less than 30 of the atomic molar ratio (Co/M) of cobalt to total metals (M) excluding sodium at 4 random points selected through EDS mapping analysis.
Absstract of: US2025136468A1
Disclosed are a positive electrode active material, a method of preparing the same, a positive electrode, and a rechargeable lithium battery, the positive electrode active material including core particles including a layered lithium nickel-manganese-based composite oxide having a nickel content of greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the layered lithium nickel-manganese-based composite oxide, and a coating layer on the surface of the core particle and including Al, wherein an Al content based on a total of 100 at % of Ni, Mn, and Al on a surface of the positive electrode active material is about 20 at % to about 33 at %.
Nº publicación: US2025136388A1 01/05/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Absstract of: US2025136388A1
The present disclosure relates to a cell packaging device. The cell packaging device can include a cell grip unit with a cell grip part including a first member provided with a roller and a second member disposed opposite to the first member at a predetermined interval to provide an insertion space to receive a cell. A gap adjusting part of the cell grip unit can adjust a gap between the first member and the second member. A transport part of the cell packaging unit can transport the cell grip unit.
BOPI
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