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1363
resultados
Última actualización
13/09/2025 [07:35:00]
Resultados 975 a 1000 de 1363
Resumen de: WO2025179807A1
The present application relates to a battery module, a battery and an electrical device. The battery module (20) comprises battery cells (21), cooling plates (22), and protective members (24). The battery cells (21) are arranged at intervals in a first direction (X); and each cooling plate (22) is arranged between two adjacent battery cells (21) in the first direction (X), the two adjacent battery cells (21) and at least one side of the periphery of the cooling plate (22) located therebetween can jointly define an accommodating space (23), and the protective member (24) covers at least the at least one side of the cooling plate (22) that defines the accommodating space (23). When thermal runaway occurs to a battery cell (21), the protective member (24) can prevent a gas, particles, etc., generated during thermal runaway of the battery cell (21) from entering the accommodating space (23) and acting on the cooling plate (22), thereby reducing the probability of damage to or even failure of the cooling plate (22), and thus the cooling plate (22) can be effectively protected. In addition, the protective members (24) can also protect the cooling plates (22) during the assembly of the battery module (20), and reduce the probability of impurities such as particles entering the accommodating space (23) and damaging the cooling plates (22), resulting in the damage to or even failure of the cooling plates (22).
Resumen de: WO2025180004A1
Provided are an auxiliary infiltration device (100) for batteries and an infiltration system. The auxiliary infiltration device (100) for batteries comprises a carrier and a pressure regulating mechanism (20), wherein the carrier is internally provided with an accommodating cavity for accommodating a battery (200), the pressure regulating mechanism (20) is connected to the carrier and is in communication with the accommodating cavity, and the pressure regulating mechanism (20) is configured to regulate the pressure in the accommodating cavity to make the battery (200) generate elastic deformation.
Resumen de: WO2025183339A1
A carbon-based anode material for a sodium secondary battery, using pre-sodiation and reduction method is disclosed. The carbon-based anode material for a sodium secondary battery, according to one embodiment may comprise a solid electrolyte interface (SEI) layer. Here, the SEI layer is pre-formed by the sodium, which was loaded through pre-sodiation, before charging/discharging of a sodium secondary battery.
Resumen de: WO2025183361A1
The present invention relates to a positive electrode active material and a method for recycling same and, more specifically, to a positive electrode active material and a method for recycling same, wherein the positive electrode active material is at least one selected from the group consisting of a lithium nickel oxide (LNO)-based positive electrode active material, a nickel cobalt manganese (NCM)-based positive electrode active material, a nickel cobalt aluminum (NCA)-based positive electrode active material, and a nickel cobalt manganese aluminum (NCMA)-based positive electrode active material, includes single particles, has an F content of 5,700 to 6,500 mg/kg, and/or has an a-axis lattice constant of 2.8753 to 2.8772 Å, a c-axis lattice constant of 14.243 to 14.255 Å, a cell volume of 101.968 to 102.168 Å3, and a grain size exceeding 130 nm and up to 136 nm, as measured by XRD analysis.
Resumen de: WO2025183364A1
The present invention relates to a negative active material comprising graphite and silicon, and a method for preparing same. The negative active material, according to one aspect of the present invention, comprises graphite and silicon, wherein the silicon content in the negative active material is 5 wt% to 80 wt%, and the silicon is uniformly distributed in the negative active material. A secondary battery, according to another aspect of the present invention, comprises: a negative electrode; a positive electrode; and a separator formed between the negative electrode and the positive electrode, wherein the negative electrode comprises the negative active material of the present invention. The method for preparing a negative active material, according to another aspect of the present invention, comprises the steps of: mixing graphite with silicon particles; and forming a negative active material comprising the graphite and the silicon particles by applying one or more forces selected from the group consisting of shear force, tensile force, and compressive force to the particles formed as a result of the mixing.
Resumen de: WO2025183383A1
This battery pack assembly for a vehicle comprises a plurality of sub-packs, wherein each sub-pack includes a box frame and an inner frame assembly disposed within the box frame, the box frame includes a front wall, a rear wall and a pair of side walls, either the front wall or the rear wall includes a first plurality of mounting flanges disposed to be spaced apart in the vertical direction, each of the pair of side walls includes a second plurality of mounting flanges disposed to be spaced apart in the vertical direction, the inner frame assembly includes a plurality of cooling plate structures directly mounted on at least one of the first and second plurality of mounting flanges, a thermal hose assembly is connected to each of the plurality of cooling plate structures, and a plurality of battery modules are supported on the plurality of cooling plate structures.
Resumen de: US2025276587A1
A battery frame for holding one or more battery boxes includes an outer frame surrounding an interior space and formed from a plurality of structural members including first rails extending parallel to and spaced apart from one another and second rails between the first rails and perpendicularly thereto. The outer frame defines a top extending in a flat plane and a bottom. Each of the first rails includes a mounting flange extending outwardly away from the interior space for holding the battery frame to a vehicle structure. One or more battery boxes are disposed within the interior space of the outer frame and are removable from below the outer frame with the outer frame mounted within a vehicle. Support members and cross-beams provide structural rigidity, distribute or absorb crash loads, and hold one or more of the battery boxes within the battery frame.
Resumen de: US2025276613A1
A traction battery pack operating method includes charging a traction battery pack of an electrified vehicle. The charging includes charging a first subpack of battery cells together with a second subpack of battery cells. The method can discharge the first subpack separately from the second subpack. The method can include during the discharging, maintaining at least one switch in an open state to electrically isolate the first subpack from the second subpack.
Resumen de: US2025276572A1
A vehicle battery pack assembly includes a plurality of sub pack assemblies, each sub pack including a box frame. An internal frame assembly is disposed within the box frame. The box frame includes a front wall, a rear wall and a pair of side walls, one of the front wall and the rear wall includes a first plurality of mounting flanges vertically spaced there along and the pair of sidewalls each include a second plurality of mounting flanges vertically spaced there along. The internal frame assembly includes a plurality of first cold plate structures mounted directly to at least one of the first and second plurality of mounting flanges. A thermal hose assembly is connected to each of the plurality of first cold plate structures and a plurality of battery modules are supported on the plurality of first cold plate structures.
Resumen de: US2025276571A1
Provided is a cooling panel for a battery case. The cooling panel is formed in a panel shape and has a first surface and a second surface parallel to each other, the cooling panel has a cooling flow passage formed therein and configured to allow refrigerant to flow therethrough, and the cooling flow passage has, based on a central portion between the first surface and the second surface, a flow cross-sectional area on a side close to the first surface and a flow cross-sectional area on a side close to the second surface, wherein the two flow cross-sectional areas have different configurations.
Resumen de: US2025276611A1
An apparatus, including: a first circuit containing a first load, wherein a first battery is associated with the first circuit; a second circuit containing a second load, wherein the second load draws current from a second battery when the first load is not operating or is non-operational; a first switch, wherein the first switch is capable of disconnecting the first battery from the first circuit; a second switch, wherein the second switch is capable of connecting the first battery to the first circuit, wherein the first switch and the second switch are connected in series; at least one recharger, wherein the at least one recharger recharges the first battery and the second battery when the first load is operating; a third circuit containing a second battery; and a third load. The third load is connected between the first circuit and the third circuit.
Resumen de: WO2025182453A1
The present invention provides a nonaqueous electrolyte solution and an electrochemical element capable of reducing desolvation resistance. The nonaqueous electrolyte solution contains 200 wtppb or more of zirconium and/or 30 wtppb or more of lanthanum. The nonaqueous electrolyte solution may further contain 10 wtppb or more of strontium. The nonaqueous electrolyte solution may contain zirconium and lanthanum, and the ratio of the concentration of lanthanum to the concentration of zirconium may be 0.2 to 0.5. The electrochemical element contains the nonaqueous electrolyte solution.
Resumen de: WO2025183367A1
A battery pack according to one embodiment of the present document may comprise: a conversion unit for converting the total voltage outputted from a first battery unit and a second battery unit into an intermediate voltage; a switch circuit unit for switching electrical connections between the conversion unit, the first battery unit, and a load; and a controller which charges the first battery unit by using the intermediate voltage and controls the operation of the switch circuit unit to supply power to the load.
Resumen de: WO2025183344A1
The present invention relates to a method for recycling a positive electrode active material and a positive electrode active material recycled thereby and, more specifically, the present invention can provide a method for recycling a positive electrode active material and a positive electrode active material recycled thereby, the method comprising the steps of: thermally treating a waste positive electrode, including a current collector and a positive electrode active material layer formed on the surface thereof, under an oxidative atmosphere to recover a positive electrode active material; adding a coating agent to the recovered positive electrode active material, followed by firing under a reductive atmosphere, to convert a trivalent iron compound in the positive electrode active material into a divalent iron compound and convert polycrystalline particles into a single-crystal cathode active material, while forming a coating layer on the surface of the positive electrode active material; and milling the positive electrode active material, which has the coating layer formed thereon and has undergone conversion into the divalent iron compound, to control the particle size of the positive electrode active material, so that during the recycling process, synthesis into a single crystal structure is achieved along with the conversion of trivalent iron into divalent iron to eliminate the remaining of trivalent iron inside the recycled positive electrode active material, thereby pr
Resumen de: WO2025183332A1
The present invention relates to a silicon negative electrode material including silicon particles coated with a graphene protective layer, wherein micropores are formed in at least a portion of the graphene constituting the graphene protective layer. The graphene protective layer surrounding the silicon particles improves lithium permeability due to having the micropores, and thus high-speed charge and discharge characteristics can be achieved. Moreover, nano-protrusions and pores are formed on the surface of the silicon particles and buffer the mechanical stress generated by volume expansion due to internal pores, and the nano-protrusion structure can suppress micronization and thereby alleviate deterioration.
Resumen de: US2025278536A1
The present invention relates to a modeling method for a thermal runaway-electrochemical coupling model for a change in state of charge of a lithium-ion battery during charging and discharging, and belongs to the technical field of safety of lithium-ion batteries. The method includes the following steps: S1: establishing a three-dimensional thermal runaway model of the battery under different states of charge; S21: assembling half-cells of battery cathode and anode materials; S22: testing equilibrium potentials and entropy thermal coefficients of a cathode and an anode; S23: acquiring a heat transfer coefficient between a battery surface and an ambient temperature; S24: measuring temperature and voltage change curves of the battery; S25: establishing an electrochemical model plugging electrochemical parameters into the model to obtain simulation results, and comparing the simulation results with real experimental results; and S3: making the temperatures in the electrochemical model to be consistent with an average temperature in the three-dimensional thermal runaway model under different states of charge for coupling, and setting restriction conditions after coupling. The method can achieve coupling of the thermal runaway model for the change in state of charge and electrochemistry, and can explore the thermal runaway phenomenon of batteries more comprehensively.
Resumen de: US2025275658A1
An attachment for a vacuum cleaner includes a head, a brush roll, an electric motor, and an attachment conduit. The head includes a suction opening, a brush roll cavity, and a battery cavity defined therein. The brush roll cavity is in fluid communication with the suction opening. The battery cavity has an elongate shape and a first longitudinal axis. The brush roll is rotatably coupled to the head. A majority of the brush roll is disposed within the brush roll cavity. The brush roll is rotatable about a rotational axis. The electric motor is disposed within the head. The electric motor drives the brush roll. The attachment conduit is in fluid communication with the suction opening. The attachment conduit is coupled to the head and has a second longitudinal axis. Each of the first longitudinal axis and the second longitudinal axis is angled relative to the rotational axis.
Resumen de: US2025277860A1
A method for capacity calculation of a battery module includes: acquire the historical charge and discharge parameters of each battery in the battery module, select a reference battery that meet preset charge and discharge conditions, and obtain remaining batteries in the battery module; obtain relative capacity of each remaining battery relative to the reference battery; determine batteries that meet the preset capacity conditions based on the relative capacities as target capacities; obtain increasable capacity of the battery module based on the target capacities. The calculation of the increasable capacity of the battery module is performed before the battery module is recharged, so that the operation and maintenance personnel can know whether the battery module needs to be recharged and whether the capacity of the battery module after recharging has increased, which optimizes recharge process, improves recharge efficiency, and improves operation and maintenance efficiency.
Resumen de: WO2025182153A1
The present invention provides a heat transfer suppression sheet in which it is possible to accurately align the positions of a heat insulation material and an elastic sheet, and with which it is possible to suppress destruction of a battery case and deterioration of the battery performance due to deformation of a battery cell, to further suppress propagation of heat between battery cells when an abnormality occurs, and to reduce the starting material cost. This heat transfer suppression sheet (50) has: a heat insulation material (10) which contains inorganic particles; elastic sheets (51a, 51b) which are superposed on a first surface (10a) and a second surface (10b) of the heat insulation material (10), the first and second surfaces being orthogonal to the thickness direction of the heat insulation material; and joining parts (55a, 55b) which join the heat insulation material (10) and the elastic sheets (51a, 51b) to each other. Facing regions (45a, 45b) in which the heat insulating material (10) and the elastic sheets (51a, 51b) face each other have joining regions (44a, 44b) in which the joining parts (55a, 55b) are present, and non-joining regions (41a, 41b) in which the joining parts (55a, 55b) are not present.
Resumen de: WO2025183264A1
The present invention relates to an all-solid-state battery. More specifically, the all-solid-state battery comprises a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, the solid electrolyte layer including: a first solid electrolyte layer adjacent to the positive electrode layer and having a first width and a first thickness; and a second solid electrolyte layer adjacent to the negative electrode layer and having a second width and a second thickness, wherein the second width is greater than the first width, and the second thickness is greater than the first thickness.
Resumen de: WO2025182200A1
This metal recovery method is for leaching metal in a battery powder of a lithium-ion battery waste and for separating and recovering the metal from a thus obtained metal-containing solution. The metal recovery method comprises an elution step for bringing, into contact with an acidic eluent, a cation exchange resin and/or a chelate resin in which metal ions derived from the battery powder are adsorbed as adsorption target ions, and eluting the adsorption target ions from the cation exchange resin and/or the chelate resin to obtain a post-elution liquid including the adsorption target ions. An acidic liquid that is obtained by electrodialysis and contains the metal ions is used as at least a part of the acidic eluent in the elution step to cause the metal ions contained in the acidic liquid to be included in the post-elution liquid, and the post-elution liquid is brought back to and is used in steps included in the steps for leaching metal in the battery powder, and for separating and recovering the metal.
Resumen de: WO2025183333A1
The present invention relates to a silicon negative electrode material comprising silicon secondary particles formed by aggregating silicon primary particles, wherein the silicon negative electrode material has a bridge connecting adjacent silicon primary particles in the silicon secondary particles.
Resumen de: WO2025182926A1
The present invention addresses the problem of providing a method for easily manufacturing a solid-state battery in which the charging rate and initial characteristics are improved. The method comprises: a first processing step for causing a current to pass through a solid-state battery before initial charging, at a temperature of 25-90°C and at a rate of 0.001-0.5C; a holding step for holding the solid-state battery at a temperature of 25-90°C after the first processing step; and a second processing step that is performed after the holding step as an initial charging step for charging the solid-state battery to a depth of charge of 50-100% in SOC and then discharging the same. Preferably, the holding time in the holding step is at least 10 minutes. Further preferably, in the first processing step, a current is passed through the solid-state battery to a depth of charge of 1-105% in SOC.
Resumen de: WO2025183086A1
Disclosed is a positive electrode active material for sodium ion batteries, the positive electrode active material being a sulfide. The sulfide is a sulfide (i) represented by formula NaαiFe1-xiTMi xiS4 (in the formula, αi is 0 to 6 inclusive, xi is 0 to 0.6 inclusive, and TMi is a transition metal) or a sulfide (ii) represented by formula NaαiiFe2-xiiTMii xiiS6 (in the formula, αii is 0 to 8 inclusive, xii is 0 to 0.6 inclusive, and TMii is a transition metal). Consequently, the present invention provides a novel positive electrode active material that is useful for a sodium ion battery.
Nº publicación: WO2025183200A1 04/09/2025
Solicitante:
IDEMITSU KOSAN CO LTD [JP]
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Resumen de: WO2025183200A1
This positive electrode mixture comprises: a conductive auxiliary agent which is a carbon material; a sulfur-based active material; and a solid electrolyte, wherein in elemental analysis using energy dispersive X-ray spectroscopy of an electron microscope image, the mapping overlap rate between carbon and phosphorus is 60% or more, and in powder X-ray diffraction using CuKα rays, there is a diffraction peak A at 2θ=25.7±0.5° and a diffraction peak B at 2θ=30.2±0.5°, and the half-value width of diffraction peak A is 0.190 or less.
BOPI
Sede Electrónica
