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1452
resultados
Última actualización
04/05/2025 [07:15:00]
Resultados 450 a 475 de 1452
Resumen de: US2025140958A1
An electric work vehicle includes a chassis, a battery housing to house a plurality of battery modules, a cooling structure mounted to a front portion of the battery housing, and an inverter. The battery housing is supported by the chassis. The cooling structure includes a fan mounted at a front portion of the cooling structure. The fan is rotated by an electric motor powered by the inverter.
Resumen de: WO2025089182A1
Provided is a nonaqueous electrolyte secondary battery capable of improving coulombic efficiency while omitting a conventional negative electrode active material layer. A nonaqueous electrolyte secondary battery according to an embodiment includes a negative electrode, a positive electrode, and a nonaqueous electrolyte. The nonaqueous electrolyte is a nonaqueous electrolyte in which an ionic crystal is dissolved in an ionic liquid. The negative electrode has a current collector and a silicon-containing layer disposed on the current collector, and the layer does not contain an organic binder.
Resumen de: WO2025088673A1
The present invention provides a battery module which is excellent in terms of the cooling efficiency of a battery cell, and is capable of conforming to expansion and contraction of the battery cell. This battery module (100) is provided with a plurality of battery cells (1), in each of which the thickness in the stacking direction changes due to charging/discharging. With respect to battery cells (1) adjacent to each other, tab leads (30) thereof are connected to each other by means of a flexible bus bar (40) that is capable of conforming to a change in the thickness in the stacking direction. A cooling pipe (60), through which a coolant flows, is attached to the tab lead (30) in such a manner that the cooling pipe (60) is able to cool the tab lead (30). The cooling pipe (60) is affixed to the tab lead (30) by means of a heat transfer member (50) that fills the gap between the tab lead (30) and the cooling pipe (60) itself. The cooling pipe (60) has: a plurality of crossover pipes (64); and a flexible pipe (63) that connects ends of the plurality of crossover pipes (64) so that the coolant flows back, and has flexibility with which it is possible to conform to a change in the thickness of the battery cells (1) in the stacking direction.
Resumen de: WO2025088416A1
The present invention relates to a prismatic form factor based battery cell (100). The body is a prismatic shaped body that provides a maximum flat face as a cell terminal as said prismatic shaped body reorients a flow of current. The body encompasses an anode layer (1), a separator layer (2), a cathode layer (3), an adhesion layer (5), an upper current collector layer (6) and a lower current collector layer (4). The anode layer (1), the separator layer (2), the cathode layer (3), the upper current collector layer (5), the adhesion layer (4), and the lower current collector layer (6) are affixed to each other via at least one of a mechanical contact process and a deposition process.
Resumen de: WO2025088790A1
The purpose of the present invention is to appropriately detect local deformation of a layer. An inspection system (100) comprises: an emitting device (2) capable of emitting radiation; an imaging device (4) that outputs data indicating the internal structure of a laminate as obtained by the emitting device (2) emitting radiation toward the laminate; and a control device (5). The control device (108) outputs information relating to deformation of some of a first layer of the laminate on the basis of the data.
Resumen de: WO2025089001A1
The present invention realizes a configuration for quickly measuring the temperature in each unit cell in a battery pack in which a plurality of unit cells are arranged. Provided is a battery pack in which there are arranged a plurality of unit cells in which a power generation element is accommodated within a container and sealed with a metal lid 501, the battery pack being characterized in that a heat transfer member 20 is fixed to the lid 501, an insulation layer 21 having first wiring is fixed to the heat transfer member 20, and a temperature detection sensor (thermistor) 30 is connected to the first wiring.
Resumen de: WO2025086593A1
A multi-element positive electrode material and a preparation method therefor, and a positive electrode sheet and a lithium ion battery using the multi-element positive electrode material. The multi-element positive electrode material is secondary particles formed by agglomerating primary particles, wherein the ratio of the total cross-sectional area of the primary particles having five or more grain boundaries to the cross-sectional area of the secondary particles is greater than or equal to 3:4; the porosity of the cross section of the secondary particles is less than or equal to 2%; each grain boundary is the contour line of an interface between the primary particles with the same structure and different orientations on the cross section of the secondary particles, and the length of the grain boundary is greater than or equal to 0.1 μm. The internal crystal grains of the multi-element positive electrode material are irregularly, non-radially and disorderly arranged, so that the multi-element positive electrode material has high powder compaction density and processing performance. Moreover, the positive electrode sheet containing the multi-element positive electrode material easily bears high rolling pressure, and does not easily break.
Resumen de: WO2025086724A1
A method for estimating the available capacity of a lead-acid storage battery, a method for assessing the state of health of a lead-acid storage battery, and a maintenance method for a lead-acid storage battery. The method for assessing the state of health comprises: obtaining a real-time discharge current of a lead-acid storage battery to be subjected to assessment; on the basis of a first constant coefficient and a second constant coefficient, obtaining an estimation result of the available capacity of said lead-acid storage battery; and on the basis of the available capacity of said lead-acid storage battery, an internal resistance of the battery and the temperature of the battery, performing degree-of-health assessment on said lead-acid storage battery by means of a lead-acid storage battery degree-of-health assessment model, so as to obtain an assessment result of the state of health of said lead-acid storage battery. By means of the present invention, an accurate estimation result of the available capacity of a lead-acid storage battery can be obtained, the state of health of the lead-acid storage battery to be subjected to assessment can be precisely determined, and on this basis, whether the lead-acid storage battery is in an abnormal state is determined, thereby effectively improving the maintenance efficiency of maintenance personnel for a railway communication machine room, and ensuring the stable and safe operation of a communication device.
Resumen de: WO2025086720A1
An energy storage apparatus (10) and a container (20) therefor. The container (20) comprises a box body (21) and battery cells (30). The battery cells (30) are accommodated in the box body (21). The dimension of the container (20) in the length direction and the dimension thereof in the width direction are respectively consistent with the dimensions of a standard container, and the dimension h of the container (20) in the height direction is smaller than the dimension H of one standard container in the height direction of the container (20).
Resumen de: US2025135676A1
Disclosed in one or more embodiments is a notching device including a die configured to support an electrode, a first stripper configured to move toward the die, and configured to press a mixture portion of the electrode, a second stripper configured to move toward the die, and configured to press an uncoated portion of the electrode, and a pattern portion configured to move toward the die, and configured to form a pattern on the uncoated portion.
Resumen de: US2025135449A1
To provide a water-soluble chelating polymer that can rapidly trap a trace amount of heavy-metal ions to reduce the amount of heavy-metal ions to a ppm level or lower in a short time.Use a water-soluble chelating polymer comprising an anionic polymer having a carboxy group, a sulfonate group and/or a sulfate group bonded through an ionic bond to a chelating functional group having a cationic functional group, wherein the water-soluble chelating polymer contains 0.2 to 6 mmol/g of the chelating functional group and has a weight-average molecular weight in the range of 30,000 to 1,000,000.
Resumen de: US2025135955A1
An electric work vehicle includes a battery housing and a plurality of ducts. The battery housing includes a plurality of battery housing module compartments to house a plurality of battery modules, and each of the plurality of ducts is attached to a respective one of the plurality of battery housing module compartments. The plurality of battery housing module compartments includes a first row of battery housing module compartments and a second row of battery housing module compartments spaced apart from the first row of battery housing module compartments in an up-down direction of the electric work vehicle, and one of the plurality of ducts attached to the first row of battery housing module compartments is a different size and/or shape than another one of the plurality of ducts attached to the second row of battery housing module compartments.
Resumen de: US2025135952A1
A mobility apparatus includes a plurality of first wheels, at least one first driving motor configured to provide a driving force to the plurality of first wheels, a first high voltage battery configured to supply power to the at least one first driving motor, and a first controller configured to control the at least one first driving motor and the first high voltage battery, and, when a second high voltage battery is removably and electrically connected to a first mobility apparatus, the first controller may control either the first high voltage battery or the second high voltage battery to operate to supply power to the first driving motor while performing conditioning for the other one.
Resumen de: US2025135831A1
An electric work vehicle includes a battery housing including a first battery housing portion, and an air cooling system. The battery housing includes a plurality of battery housing module compartments to house a plurality of battery modules, the air cooling system includes a first evaporator and a second evaporator, the air cooling system includes a first warm air path and a second warm air path, the first warm air path fluidly connects the first battery housing portion to the first evaporator to exhaust first warm air from the first battery housing portion to the first evaporator, and the second warm air path fluidly connects the first battery housing portion to the second evaporator to exhaust second warm air from the first battery housing portion to the second evaporator.
Resumen de: US2025140971A1
Cooling device for a battery includes a casing formed from two sheets of flexible material, a circulation channel, an inlet orifice for fluid and an outlet orifice, and at least one fluidic connector arranged through the inlet or outlet orifice. The fluidic connector includes a base having a base plate defining a central through-opening, the base plate defining an upper face arranged against an inner face of the sheet, a tube integral with the base plate, extending through the inlet orifice or the outlet orifice and leading through the central opening, and a ring assembled on the base and circumferentially surrounding the tube, arranged to bear against an outer face of the sheet, the upper face of the base plate being fixed to the inner face of the sheet by at least one weld circumferentially surrounding the tube.
Resumen de: US2025140969A1
A liquid cooling plate and a battery pack are provided. The liquid cooling plate includes a plate body and a separator. The plate body defines a cooling chamber, and the plate body is provided with a liquid inlet and a liquid outlet. The cooling chamber communicates with outside through the liquid inlet and the liquid outlet. The separator is installed to the plate body and separates the cooling chamber into cooling flow-channels, and adjacent cooling flow-channels communicate with each other. The separator is non-uniformly distributed at the plate body. Where the cooling flow-channel has a smaller flowing area, the cooling liquid flows faster, thereby increasing the flowing speed of the cooling liquid. Where the cooling flow-channel has a larger flowing area, the cooling liquid flows slower, thereby prolonging the heat exchange time of the cooling liquid and improving the uniformity of heat dissipation of the liquid cooling plate.
Resumen de: US2025140970A1
A friction stir welding method welds at least two members to be welded by overlapping the members to be welded and moving a welding tool. The friction stir welding method has a step of forming a closed space at a terminal end of a welding line which is a movement track of the welding tool, and a step of moving the welding tool to inside the closed space and pulling out the welding tool from the members to be welded.
Resumen de: US2025140959A1
An electric work vehicle includes a chassis, a battery housing to house a plurality of battery modules, a liquid cooling system, at least one electric motor, and at least one inverter. The liquid cooling system includes a pump, a radiator, and a fan. The battery housing is supported by the chassis. The at least one inverter is electrically connected to the plurality of battery modules and the at least one electric motor. The pump is attached to a back surface of the battery housing. The radiator and the fan are attached on a front surface of the battery housing. The at least one inverter is attached to a side surface of the battery housing that faces a width direction. The at least one inverter and the at least one electric motor are mounted between the fan and the pump in a front-rear direction.
Resumen de: US2025140943A1
A circuit module for coupling a plurality of energy cell units is disclosed. Energy modules, energy clusters, energy systems and cascaded circuitry comprising such circuit modules are also disclosed.
Resumen de: WO2025088401A1
A non-rechargeable battery pack for use with a device includes a non-rechargeable battery connector and a first battery pack transistor. The rechargeable battery connector is configured to detachably and electrically connect the rechargeable battery pack to the device. The non- rechargeable battery connector includes a first terminal and second terminal. The first battery pack transistor includes a first gate electrically connected to the first terminal and a first drain electrically connected to the second terminal. When the non-rechargeable battery connector is detachably and electrically connected to the device, the first gate of the first battery pack transistor is configured to receive a high voltage signal through the first terminal. Upon receiving the high voltage signal, the first battery pack transistor switches on causing the second terminal to transmit a low voltage signal to the device, such that the low voltage signal indicates that the non- rechargeable battery pack is non-rechargeable.
Resumen de: WO2025088459A1
One aspect of the present invention provides a charging control system that is capable of effectively using regenerative electric power without wasting the regenerative electric power. Generated regenerative electric power is efficiently stored in a second secondary battery and then stored in a main first secondary battery. Charging from the second secondary battery to the first secondary battery is performed via a DC-DC converter. The charge state of the first secondary battery and the charge state of the second secondary battery are controlled. When the first secondary battery is close to full charge and is likely to deteriorate, it is possible to perform charging from the first secondary battery to the second secondary battery.
Resumen de: WO2025088588A1
The present disclosure provides a method (700) and a system (210) for balancing a battery pack (220) of an electric vehicle. The method includes simultaneously detecting (710), by a cell balancing system (210), a voltage and a current of cells in the battery pack (220), and a temperature of components of the battery pack (220). The method includes determining (720) a terminal voltage and a state of charge of the cells based on the voltage and the current of the cells. The method includes estimating (730) cell balancing duty cycles based on the terminal voltage and the state of charge of the cells, and cell balancing duty cycles based on the temperature of the components of the battery pack (220), and balancing (750) the cells based on a minimum duty cycle being estimated between the cell balancing duty cycles.
Resumen de: WO2025089934A1
The present invention relates to a cathode active material for a lithium secondary battery, comprising: a lithium metal oxide in a discrete-particle form; and a coating layer which is arranged on the surface of the lithium metal oxide and which contains cobalt, wherein: the coating layer is attached to the surface of the lithium metal oxide, and is in an island form including a plurality of attached particles spaced apart from each other; and the average coating rate of the coating layer is 35 to 48 area% on the basis of the total surface area of a discrete particle.
Resumen de: WO2025088415A1
The present invention provides a multi-dimensional electrode architecture based electrochemical cell (100) that provides higher volumetric and gravimetric energy density by eliminating the need for metallic substrates. The multi-dimensional electrode architecture based electrochemical cell comprises of a plurality of layers including but not limited to a lower current collector layer (6), an anode layer (1), a separator layer (2), a cathode layer (3), an adhesion layer (4), and an upper current collector layer (5).
Nº publicación: WO2025086474A1 01/05/2025
Solicitante:
HUBEI RT ADVANCED MAT GROUP COMPANY LIMITED [CN]
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Resumen de: WO2025086474A1
A sodium-ion battery positive electrode material, and a preparation method therefor and a use thereof. The chemical general formula of the sodium-ion battery positive electrode material is NamNixFeyMnzO2, wherein 0.1≤x≤0.25, 0.5≤y≤0.8, 0.1≤z≤0.25, 0.8≤m≤1.1, 0.95≤x/z≤1.05, x+y+z=1, m, x, y, and z respectively are molar percentages of corresponding elements, and components in the chemical general formula satisfy charge conservation and stoichiometry conservation. The preparation method comprises: using a co-precipitation method to prepare a precursor containing a nickel source, an iron source, and a manganese source in required stoichiometric amounts; mixing the precursor containing the nickel source, the iron source, and the manganese source with a sodium source at a specific ratio, then adding a doping element for primary sintering to obtain a doped sodium-ion battery positive electrode material; and carrying out secondary sintering on the doped sodium-ion battery positive electrode material and a coating to obtain a final sodium-ion battery positive electrode material. The sodium-ion battery positive electrode material has the advantages of high capacity, low residual alkali, and high stability.
BOPI
Sede Electrónica
