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1196
resultados
Última actualización
18/08/2025 [07:12:00]
Resultados 975 a 1000 de 1196
Resumen de: US2025253380A1
A configuration converter mechanism includes a locking tensioning mechanism which has a first and a second partial region. The first partial region is supported so as to be movable, by way of a translatory movement, with respect to the second partial region. The second partial region is supported so as to be movable, by way of a rotational movement, with respect to the first partial region about a first axis of rotation and, as part of this, can be transferred, by movements which include a rotation about the first axis of rotation, between different rest positions of the second partial region, which follow one another along a fixed direction of rotation and each of which are mechanically stable. The locking tensioning mechanism is set up to convert a translatory movement of the first partial region into a corresponding movement of the second partial region by means of a force coupling between the two partial regions, which movement of the second partial region.
Resumen de: US2025253408A1
Provided is an electrolyte solution capable of providing a lithium-sulfur secondary battery that has excellent cycle characteristics and that is less likely to generate gas. The electrolyte solution is intended to be used in a lithium-sulfur secondary battery that includes: a positive electrode containing a sulfur-containing electrode active material that includes at least one selected from the group consisting of simple sulfur, lithium polysulfide (Li2Sn: 1
Resumen de: US2025253396A1
A nonaqueous electrolyte energy storage device according to an aspect of the present invention includes: a negative electrode including a negative active material including solid graphite; and a nonaqueous electrolyte including a compound represented by the following formula (1). In the formula (1), R1 and R2 are each independently a hydrogen atom or a hydrocarbon group, provided that the total number of carbon atoms of R1 and R2 is 3 or less.
Resumen de: WO2025161217A1
The present application relates to a low-voltage lithium battery, comprising: a circuit assembly, a plastic middle frame, a wound cell assembly, a metal housing, and an insulating outer sheath. The circuit assembly comprises a PCB, an outer conductive cap, and an inner conductive cap. A positive electrode copper ring and a negative electrode copper ring are arranged on the front side of the PCB. The positive electrode copper ring is electrically connected to the outer conductive cap, and the negative electrode copper ring is electrically connected to the metal housing. A high-voltage input copper ring is arranged on the back side of the PCB, and is electrically connected to the inner conductive cap. A positive tab of the wound cell assembly is electrically connected to the inner conductive cap, and a negative tab of the wound cell assembly is electrically connected to the metal housing. By providing the positive electrode copper ring, the negative electrode copper ring, and the high-voltage input copper ring on the PCB, the electrical connection between the wound cell assembly and the PCB and the electrical connection between a low-voltage output element and the PCB can be achieved without the use of conductive wires, improving the stability of electrical performance, simplifying the internal connection structure of the lithium battery, enhancing safety, and enabling industrialized production.
Resumen de: WO2025161218A1
The present application relates to a 1.5 V lithium battery and a manufacturing method therefor. The 1.5 V lithium battery comprises a circuit assembly, a plastic middle frame, a wound battery cell assembly, a metal case, and an insulating sleeve; the circuit assembly, the plastic middle frame and the wound battery cell assembly are sequentially arranged in the metal case from top to bottom; a groove is inwards formed in the upper part of the metal case, and a spun edge is inwards arranged at the top of the metal case; the groove limits the wound battery cell assembly at the bottom of the metal case; the plastic middle frame is limited between the groove and the spun edge, and sealing between the plastic middle frame and the metal case is achieved; and the circuit assembly is arranged on the plastic middle frame. According to the present application, the wound battery cell assembly is directly placed in the metal case, which eliminates a layer of outer wrapping compared to the prior art using pouch lithium battery cells or hard-case lithium battery cells, resulting in lower costs; by providing the groove, the wound battery cell assembly is fixed; and the groove and the spun edge at the upper end jointly press and seal the plastic middle frame, without leaking an electrolyte.
Resumen de: WO2025161220A1
A buck circuit assembly for a lithium battery, and a 1.5 V lithium battery. The buck circuit assembly comprises a PCB (1), an outer conductive cap (2) and an inner conductive cap (3); the front surface of the PCB (1) is provided with a positive electrode copper ring (11) and a negative electrode copper ring (12); the positive electrode copper ring (11) is electrically connected to the outer conductive cap (2); the outer conductive cap (2) is used as a low-voltage output positive electrode; the negative electrode copper ring (12) is used as a common negative electrode; the back surface of the PCB (1) is provided with a high-voltage input copper ring (13); the high-voltage input copper ring (13) is electrically connected to the inner conductive cap (3); and the inner conductive cap (3) is used as a high-voltage input positive electrode. The PCB (1) achieves the functions of high-voltage input and low-voltage output by means of the three copper rings; the high-voltage input copper ring (13) serves as a high-voltage input positive electrode, the positive electrode copper ring (11) serves as an output positive electrode of a lithium battery, the negative electrode copper ring (12) serves as an output negative electrode of the lithium battery, achieving charging and discharging functions by means of the same port; and there is no need to provide any conductive cable, achieving higher stability of electrical performance, simplifying the internal connection structure of the lithium b
Resumen de: WO2025161597A1
A high-nickel single crystal positive electrode material, a preparation method therefor, a positive electrode sheet, a secondary battery and an electrical apparatus. The chemical formula of the high-nickel single crystal positive electrode material is Li1+δNixMyQ1-x-yO2+εAαRβXγ, wherein 0.8≤x＜1, 0＜y≤0.2, 0≤δ≤0.15, 0＜ε≤0.2, 0＜α≤0.04, 0＜β≤0.04, 0≤γ≤0.04, the element M and element Q each independently comprise one or more of Mn, Co, Al, Ta, Ti, Nb, Ge, Y, Nb, W, Zr, Ce, Ca, Sr, Sc, V, Cr and Mo, the element A comprises one or more of Mg, Ca, Sr, Ba, Ti, Zr, V, Nb, Ta, Mo, W, La, Ce, Sc and Cr, the element R comprises one or more of B and P, and the element X comprises one or more of Na, K, Mn, Mg, Ca, Sr and Al. The molar ratio of surface Ni3+ in the high-nickel single crystal positive electrode material is 38%-55%, and the molar ratio of surface lattice oxygen is 7%-15%. The material has obviously reduced structural defects, thus improving the specific capacity thereof, and improving the cycle performance thereof.
Resumen de: WO2025162653A1
The present invention relates to an apparatus composed of a composite comprising an aggregate phase comprising refractory particles; and a binder phase comprising binder refractory particles and an aluminosilicate phase. The binder refractory particles are embedded within the aluminosilicate phase; and wherein the sum of the refractory particles + aluminosilicate phase + binder refractory particles is at least 70 wt% of the total weight of the composite composition.
Resumen de: WO2025162652A1
The present invention relates to an open vessel for containing cathode active materials with a capacity in the range of 0.01 to 2000 litres composed of a composite comprising an aggregate phase comprising refractory particles; and a binder phase comprising binder refractory particles and an aluminosilicate phase. The binder refractory particles are embedded within the aluminosilicate phase; and wherein the sum of the refractory particles + aluminosilicate phase + binder refractory particles is at least 70 wt% of the total weight of the composite composition.
Resumen de: WO2025163240A1
A computer implemented method for controlling a virtual power plant, VPP, to provide (401) symmetric power reserve for an electric grid, wherein the VPP comprises a plurality of battery units. The method includes detecting (402) a need to activate the power reserve for up regulation or for down regulation, wherein the up regulation comprises drawing energy from one or more battery units of the VPP and the down regulation comprises storing energy to one or more battery units of the VPP; obtaining (403) information about energy levels of the battery units of the VPP; arranging (404) the battery units to an up regulation priority order and to a down regulation priority order based on the information about energy levels of the battery units; and activating (407) battery units in the up regulation priority order for up regulation until required capacity is reached, or activating (408) battery units in the down regulation priority order for down regulation until required capacity is reached. The up regulation priority order is arranged (405) by first prioritizing battery units with energy level above a battery unit specific target level, and by then continuing the up regulation priority order by prioritizing battery units with energy level below the battery unit specific target level. The down regulation priority order is arranged by first prioritizing battery units with energy level below a battery unit specific target level, and by then continuing the down regulation priority ord
Resumen de: WO2025163218A1
A system and method for determining an internal state of a battery that synchronizes the overall available charge and discharge power with the present charge and discharge current limits. The system can be operated to determine a current limit for the battery according to an internal state of the battery, a voltage-based current limit, and a merged current limit. The system may also be configured to determine an expected voltage based on the current limit, and to optionally determine an overall available power output based on the current limit and the expected voltage.
Resumen de: WO2025162586A1
The invention relates to a storage battery cell for a lead-acid storage battery, in particular a VRLA-AGM storage battery, having a cell housing, wherein alternating positive and negative electrode plates and an electrolyte in liquid or fleece-bonded form are arranged within the cell housing, wherein the negative electrode plates are each formed from an electrode grid and a negative active mass, and wherein the positive electrode plates are each formed from an electrode grid and a positive active mass, wherein each electrode grid is filled with the associated active mass, characterized in that the electrode grid of the positive electrode is formed from a lead-tin alloy consisting of 0.018 wt.% - 0.5 wt.% Sn, remainder Pb.
Resumen de: CN119948674A
A double-walled enclosure for thermal management of a battery pack, the double-walled enclosure comprising an inner hollow structure and an outer hollow structure, the inner hollow structure having an inner surface and an outer surface; one or more battery modules are positioned in the inner hollow structure; the outer hollow structure has an inner surface wherein the outer surface of the inner hollow structure is either in contact with or forms at least one channel with the inner surface of the outer hollow structure through which the heat transfer fluid flows. The inner hollow structure is formed from a polymeric material such that the inner hollow structure is in thermal contact with the heat transfer fluid to provide thermal management of the battery pack.
Resumen de: GB2637780A
An electrode for an alkali metal ion secondary cell and its precursor composition with a polymer-electrolyte gel matrix phase, a dispersed phase comprising an electrochemically active material, and a conductive additive with a tubular carbon material as a majority component, preferably MWCNTs (multi-walled carbon nanotubes). The electrochemically active material may be a lithium transition metal oxide, preferably NMC. The electrode may be produced by processing the composition as a film or coating by thermal processing or extrusion. A method of manufacture and storage device are also described. The use of gel electrodes avoids the use of energetically expensive sacrificial solvents, and the use of tubular carbon improves electrochemical performance reducing the tortuosity values.
Resumen de: GB2637719A
A battery stack monitoring method for detecting occurrence of a thermal event in one or more battery stacks, comprising: receiving a signal indicative of a measured voltage in the one or more battery stacks; determining, in dependence on the measured voltage, whether a voltage-drop criterion is satisfied; and outputting, in dependence on the voltage-drop criterion being satisfied, a signal that a thermal event has occurred in the one or more battery stacks. The voltage drop criterion comprises a drop in the measured voltage exceeding a first threshold; and/or the measured voltage dropping below a second threshold. A battery stack monitoring system may comprise one or more processors collectively configured to perform the method. A battery storage system may comprise a plurality of battery stacks, a storage buffer for storing the stacks, one or more conveyors for moving the stacks in and out of the buffer, and the stack monitoring system.
Resumen de: EP4597674A1
To address the issue that it is difficult to ensure both cycle performance and storage performance for the existing high-voltage lithium cobalt oxide battery, the application provides a lithium-ion battery, which includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode material layer; the positive electrode material layer includes a positive electrode active material, which includes a lithium cobalt oxide doped or coated with elment aluminum; the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt and an additive; the additive includes a first additive and a second additive, the first additive includes a cyclic sultone, and the second additive includes a compound represented by structural formula 1:the lithium-ion battery meets the following requirements: 0.1≤a/c≤5; 0.3≤b/c≤20; and 0.2 ≤a≤1, 0.1≤b≤5, 0.1≤c≤5. The lithium-ion battery provided by the application has good high-temperature storage performance and high-temperature cycle performance, and is beneficial to prolonging the battery service life.
Resumen de: EP4597713A1
A battery pack is disclosed. The battery pack comprises at least one part of a housing, at least one battery system arranged in the at least one part of the housing, at least one containing member contacted with the at least one part of the housing and the at least one battery system, the at least one containing member comprises a self-expendable filler material, the at least one containing member with the self-expendable filler material is contacted with the at least one part of the housing to provide stability to the battery pack and/or to the at least one battery system with respect to the at least one part of the housing.
Resumen de: EP4597718A1
A battery housing (100) for holding a plurality of battery cells (102) for a vehicle, the battery housing comprising: a cell compartment (104) comprising an opening (106); a vent channel (108) fluidly connected to the cell compartment via the opening, the vent channel comprising a first outlet (110) and a second outlet (112), each of the first and second outlet being fluidly connected to an outside of the battery housing; and a thermal expansion material (114) arranged in a flow path between the opening and the first outlet, the thermal expansion material being configured to expand to prevent a flow through the first outlet at a predetermined threshold temperature.
Resumen de: EP4597654A1
The present disclosure provides a battery module, an apparatus and method for manufacturing said battery module, and a method of disassembling said battery module. The battery module of the present disclosure is comprised of a plurality of pouch battery cells arranged within a structural enclosure, such that the battery module is folded about a plurality of module folding lines to form a folded battery module. Embodiments of the battery module provide improved mechanical strength and stiffness, improved safety, lower weight and cost, and provides further improvements to disassembly and recycling of the battery module.
Resumen de: WO2024107446A2
A battery' system, and associated, methods are disclosed. In one aspect, a battery system includes a. stack of battery cells, including two or more different thermal zones. Aspects are shows with two or more different thermal regulating members located between battery cells in the stack of lithium-ion battery cells at dividing location between the thermal zones.
Resumen de: WO2024067895A1
The object of the invention is a safety system of a battery module (1 ) and a method of operation of the safety system of the battery module (1 ) of the present invention, wherein the safety system of the battery module (1 ) comprises a reservoir (2) of a flame retardant for storing the flame retardant (3) connected to the battery module (1 ), wherein the battery module (1 ) comprises a set of at least 3 battery cells, wherein the battery cells are arranged such as to form a space between them for the flowing of the heat transfer medium (4), and that the battery module (1 ) comprises a cooling circuit (5) of the battery module comprising an inlet (6) of the heat transfer medium, an outlet (7) of the heat transfer medium, and a manifold (8) of the heat transfer medium, wherein the manifold (8) of the heat transfer medium is connected to the inlet (6) of the heat transfer medium and comprises at least two mutually spaced apart mouths for the outflow of the heat transfer medium (4) into the space for the flowing of the heat transfer medium (4) between the battery cells, wherein the reservoir (2) of the flame retardant is connected to the manifold (8) of the heat transfer medium. The method of operation of the safety system of the battery module (1 ) lies in the fact that when the first critical temperature is reached, the access of the flame retardant (3) to the manifold (8) of the heat transfer medium, through which the flame retardant (3) is discharged through the mouths for t
Resumen de: WO2024067894A1
The object of the invention is a device (1 ) for regulating the temperature of battery cells (2) comprising a casing (3), a cover (11), a cavity (4) inside the casing (3), at least one inlet (5) of a heat transfer medium into the cavity (4) and at least one outlet (6) of the heat transfer medium from the cavity (4), wherein at least 3 battery cells (2) are located in the cavity (4) and surrounded by the heat transfer medium (7), wherein the casing (3) comprises a first side (8) of the casing and a second side (9) of the casing and the cavity (4) has a mouth (10) adjacent to the first side (8) of the casing closed by the cover (11). The device further comprises an elastic plate (12), wherein the elastic plate (12) comprises a number of openings (13) corresponding to the number of battery cells (2) inside the cavity (4), where each battery cell (2) passes through one opening (13) and the cross-section of the openings (13) in the elastic plate (12) is as large as or smaller than the cross-section of the battery cells (2), wherein the cover (11) comprises electrical conductors (14) connected to the battery cells (2) and is adjacent to the first side (15) of the elastic plate, wherein the second side (16) of the elastic plate is in contact with the heat transfer medium (7).
Resumen de: WO2024067893A1
The object of the invention is a heat exchanger with regulation of the current of a heat transfer medium comprising an inlet port (1) for the heat transfer medium, an outlet port (2) for the heat transfer medium, a thermally regulated component (3) comprising heat transfer surfaces (4), a first path (5) of the flow and a second path (5) of the flow of the heat transfer medium in heat transfer contact with different heat transfer surfaces (4) of the thermally regulated component, and an inlet manifold (6) comprising an inlet integrated channel (7) connected to the inlet port (1), wherein the first path (5) of the flow and the second path (5) of the flow are connected by their first end to the inlet integrated channel (7) and by their second end to the outlet port (2). The inlet integrated channel (7) comprises a first inlet channel (8) and a second inlet channel (9), wherein the first inlet channel (8) connects the inlet port (1 ) to the mouth (10) of the first path from the inlet integrated channel (7) and the second inlet channel (9) connects the inlet port (1) to the mouth (10) of the second path from the inlet integrated channel (7), wherein furthermore the inlet manifold (6) in the first inlet channel (8) comprises a first valve (11) for the regulation of the flow of the heat transfer medium through the first inlet channel (3).
Resumen de: WO2024073496A1
A battery cell may include a first electrode coupled with a first current collector, a second electrode coupled with a second current collector, and a separator interposed between the first electrode and the second electrode. The battery cell may further include a current controller including one or more shape memory effect (SME) materials in a deformed conformation. The shape memory effect (SME) materials may recover at least partially an original conformation of the shape memory effect (SME) materials in response to one or more stimuli. The current controller may have a lower conductivity when the shape memory effect (SME) materials are in the original conformation than when the shape memory effect (SME) materials are in the deformed conformation such that the shape memory effect (SME) materials recovering the original conformation reduces current flow within the battery cell.
Nº publicación: EP4595122A1 06/08/2025
Solicitante:
TESLA INC [US]
Tesla, Inc
Resumen de: CN119948642A
Provided herein are electrolyte additives and formulations for energy storage devices having improved performance. The electrolyte comprises at least one carbon dioxide source dissolved in a fluorinated solvent. The improved performance may be achieved as improved cycling stability.
BOPI
Sede Electrónica
