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1369
resultados
Última actualización
21/08/2025 [07:15:00]
Resultados 525 a 550 de 1369
Resumen de: WO2025167009A1
Disclosed in the present application are a battery cell winding mandrel device and a battery cell winding apparatus. The battery cell winding mandrel device comprises: a mounting base (10); an assembly housing (20), which is provided with a first end (21) and a second end (22), the first end (21) being fixedly mounted on the mounting base (10), and the second end (22) being a free end; at least one transmission assembly (30) mounted on the assembly housing (20), each transmission assembly (30) comprising a plurality of transmission components (31), the plurality of transmission components (31) being arranged around the axis of the assembly housing (20); and a plurality of suction shells (40) connected to the corresponding transmission components (31) on a one-to-one basis, the plurality of suction shells (40) being combined to form a cylindrical structure, and the transmission components (31) driving the suction shells (40) to move in the direction perpendicular to the axis of the assembly housing (20), thus expanding or reducing the outer diameter of the cylindrical structure. The application of the present technical solution aims to solve the problem of the difficulty in unloading a bare battery cell from a battery cell winding mandrel device.
Resumen de: US2025260118A1
An energy storage apparatus includes an energy storage assembly including a spacer, first and second energy storage devices respectively positioned on one side and an other side in a first direction of the spacer main body, where the spacer includes a first wall opposed to the first energy storage device in a second direction and protruding on the one side in the first direction from the spacer main body, and a second wall opposed to the second energy storage device in the second direction and protruding on the other side in the first direction from the spacer main body, the second wall is positioned on one side in a third direction, relative to the first wall, and the energy storage assembly includes, on the other side, a first opening connecting a first space between the spacer main body and the second energy storage device with an external space.
Resumen de: US2025260245A1
In some implementations, a controller may select, using one or more selection criteria, a first battery string, from multiple battery strings of a battery pack, for a pre-charge operation of the battery pack. The controller may detect a failure of the pre-charge operation via a first pre-charge circuit of the first battery string. The controller may select, using the one or more selection criteria, a second battery string, from the multiple battery strings, for the pre-charge operation based on the failure meeting one or more failure conditions. The controller may perform, via a second pre-charge circuit of the second battery string, the pre-charge operation. The controller may configure the first battery string for operation based on the pre-charge operation via the second battery string being successful.
Resumen de: US2025260116A1
A quadrangular secondary battery includes a shallow-drawn battery can and a lid plate welded together for sealing. A battery pack includes such secondary batteries without causing a busbar to be larger or to interfere with duct placement and without causing stress concentration on welding beads under a restraining load. A secondary battery includes an electricity generator, a metal battery can, a nonaqueous electrolyte, a metal lid plate, and a pair of external terminals. The battery can is quadrangular and shallow-drawn, accommodates the electricity generator placed laterally, and includes a flange on a periphery of its opening. The nonaqueous electrolyte fills the battery can accommodating the electricity generator. The lid plate includes an outer edge welded to the flange on the battery can and covers the battery can. The lid plate includes a flat raised portion extending beyond the outer edge in an inner area of the outer edge.
Resumen de: US2025260141A1
A battery includes an electrode plate and a tab. The electrode plate includes a current collector and an active material layer disposed on the current collector. The tab is connected to the current collector. The tab protrudes beyond the electrode plate along a width direction of the electrode plate. Along the width direction of the electrode plate, the tab includes a first region and a second region. The first region is located between the second region and the active material layer, a thickness of the first region is t1, and a thickness of the second region is t2, and 0.5%≤(t1−t2)/t1≤5%.
Resumen de: US2025260115A1
A battery mount includes a placement base, a restriction member to restrict rearward movement of the battery, and a securing assembly to secure the battery that extends from a position above or an upper portion of the restriction member to the battery's forward surface. The securing assembly includes a first securer at the same side of the battery as the battery's upper surface, a second securer at the same side of the battery as the battery's forward surface, and a coupler to couple the first and second securers to each other. The coupler includes an inclined portion provided in one of the first and second securers and inclined such that a distance to the battery's rear surface decreases upward, and a retention member to retain a position at which the other of the first and second securers is coupled to the inclined portion such that the position is adjustable.
Resumen de: US2025260011A1
This disclosure provides for Olivine-type compounds, their preparation and use in cathode materials for sodium-ion batteries. The olivine-type compounds of the invention are obtained by a direct synthesis embodying a hydrothermal method.
Resumen de: US2025260014A1
An electrochemical device includes an electrode assembly. The electrode assembly includes a positive electrode plate. The positive electrode plate includes a positive current collector and a positive active material layer disposed on the positive current collector. The positive active material layer includes a positive active material and graphene. At least a part of the graphene is disposed on surfaces of particles of the positive active material. The technical solution of this application not only increases a compacted density of the positive active material layer and an energy density of the electrochemical device, but also reduces polarization and increases charging speed of the electrochemical device.
Resumen de: US2025260013A1
The present disclosure relates to a negative electrode active material for a lithium secondary battery, including: a carbon-based material; a silicon coating layer disposed on the carbon-based material; and a carbon coating layer disposed on the silicon coating layer, wherein the silicon coating layer includes silicon particles and a silicon-based amorphous matrix.
Resumen de: US2025260008A1
The present disclosure relates to a sodium ion battery that includes a positive electrode plate, a negative electrode plate, and a separator disposed therebetween. The positive electrode plate includes a positive electrode current collector, on at least one side of which a positive electrode active material layer is disposed. Specifically, the positive electrode active material mainly includes an O3-phase layered metal oxide having the following molecular formula: NaaMbNicFedMneO2+δ (Formula I), in which M is a metal cation different from Ni, Fe and Mn; 0.67
Resumen de: US2025260000A1
A positive electrode material includes a positive electrode active material comprising-including a lithium nickel-based oxide having a mole fraction of nickel of 50 mol % to 90 mol % among metallic elements excluding lithium, and a coating layer including boron (B), which is formed on the surface of the lithium nickel-based oxide, wherein the positive electrode material has a BET specific surface area of 0.2 m2/g to 0.4 m2/g, and the boron (B) is included in an amount of 500 ppm to 1,000 ppm based on the total weight of the positive electrode material.
Resumen de: WO2025167013A1
A battery pack, an energy storage system and an electric device. In the battery pack, a heating assembly (20) is provided between two adjacent columns of battery cells (10), a heating portion (202) and a buffer portion (201) are stacked in a first direction, the heating portion (202) is adapted to heat the battery cells (10) and the buffer portion (201), and the buffer portion (201) is adapted to shrink under pressure and expand under heat so as to flexibly deform, and the heating assembly (20) fits with the battery cells (10).
Resumen de: WO2025167012A1
A battery (100) and an electrical device (1000). The battery (100) comprises a case assembly (20), a first heat exchange assembly (30), a battery cell assembly (101), and a first insulating member (71), wherein the case assembly (20) comprises a case (21); the first heat exchange assembly (30) comprises a first heat exchange member (31), the first heat exchange member (31) being fixed to a bottom wall (211) of the case (21); the battery cell assembly (101) is arranged in the case assembly (20), and the side of the battery cell assembly (101) that faces the bottom wall (211) of the case (21) is bonded to the bottom wall (211) of the case (21) and the first heat exchange member (31) by means of a first bonding layer (34); and the first insulating member (71) is at least partially arranged between the battery cell assembly (101) and the side of the first heat exchange member (31) that faces away from the bottom wall (211) of the case (21), the first bonding layer (34) covering the first insulating member (71). While achieving insulation between the battery cell assembly (101) and the first heat exchange member (31), the technical solution does not affect the continuous fitting arrangement between the first bonding layer (34) and the battery cell assembly (101), such that the reliability of the connection fit can be improved, enhancing the overall structural strength of the battery (100), and thus improving the reliability of the battery (100).
Resumen de: WO2025167004A1
The present application relates to a composite thermal insulation pad, a battery, and an electric device. The composite thermal insulation pad comprises: a composite phase-change layer, comprising a phase-change material layer and an encapsulation layer, the encapsulation layer being arranged on the outer peripheral side of the phase-change material layer; and an outer thermal insulation layer, arranged on at least one side of the outer peripheral side of the encapsulation layer. The composite thermal insulation pad exhibits good thermal insulation performance; and when applied in batteries, the composite thermal insulation pad has a good effect in retarding thermal runaway of the batteries.
Resumen de: WO2025167003A1
The present application relates to a thermal insulation pad, a battery and an electric device. The thermal insulation pad comprises a thermal insulation pad body and a strain detection member, wherein the strain detection member is arranged in the thermal insulation pad body. The thermal insulation pad is applied to a battery, and has the effect of slowing down thermal runaway of the battery, and by means of the strain detection member arranged in the thermal insulation pad, the state of the battery during use can be accurately obtained.
Resumen de: US2025260143A1
Disclosed is a cylindrical secondary battery in which an insulating member located between a rivet terminal and a can includes protrusions protruding therefrom upward and/or downward, thereby preventing rotation of the rivet terminal. The cylindrical secondary battery may include an electrode assembly including a positive electrode plate, a separator, and a negative electrode plate, a cylindrical can configured to accommodate the electrode assembly and to be electrically connected to the negative electrode plate and including an open lower end portion, a rivet terminal configured to be electrically connected to the positive electrode plate through an upper surface of the cylindrical can, an insulating member located between the cylindrical can and the rivet terminal, and a non-polar cap plate configured to seal the lower end portion of the cylindrical can. The insulating member may include protrusions formed on at least one surface thereof facing the cylindrical can or the rivet terminal.
Resumen de: US2025260139A1
A cylindrical battery suitable for high-speed production includes a case assembly, the case assembly comprises a case; the case is a U-shaped structure; a jelly roll member is provided in the case; two ends of the jelly roll member are respectively provided with tabs; the tab at one end of the jelly roll member is welded with a first current collector; the tab at the other end of the jelly roll member is welded with a second current collector; the first current collector is closely attached to a bottom end of the U-shaped structure of the case; the second current collector is provided at an opening of the U-shaped structure of the case; a side of the second current collector away from the jelly roll member is provided with a cover plate; and the second current collector, the case and the cover plate are welded to form an integrated structure.
Resumen de: US2025260107A1
The invention features a flexible laminate including a first plastic layer, a polyurethane adhesive composition, and a metal layer bonded to the plastic layer through the polyurethane adhesive composition, the polyurethane adhesive composition comprising a reaction product of a first part comprising an isocyanate terminated polyurethane prepolymer, and a second part comprising an epoxy resin having an equivalent weight of at least 300 g/eq. These flexible laminates have the high temperature resistance and chemical resistance necessary to package challenging materials
Resumen de: US2025260079A1
The embodiments of the present application provide a method, apparatus and system for thermal runaway processing and a storage medium. The method first obtains a battery parameter for each of a plurality of battery modules in a power battery pack, then determines that a thermal runaway is occurred in a first battery module based on the battery parameter for each of the plurality of battery modules; and then obtains a second battery module based on the first battery module, wherein the second battery module corresponds to at least one battery module excluding the first battery module in the power battery pack; and finally supplies power to a chiller system with the second battery module.
Resumen de: US2025260061A1
A battery cell includes an electrode assembly and an electrolyte solution. The electrode assembly includes a positive electrode sheet, a negative electrode sheet, and a separator. The electrolyte solution includes an organic solvent and an electrolyte salt dissolved in the organic solvent. The electrolyte salt includes a lithium salt and another alkali metal salt different from the lithium salt. A value of the compacted density of the positive electrode sheet is in a range of 2.8 g/cm3 to 4.0 g/cm3. The radii of alkali metal ions in the another alkali metal salt are greater than those of lithium ions, and the alkali metal ions can be intercalated into some lithium sites of a positive electrode in a first discharging process, to improve structural stability, and increase components of organic lithium in an SEI in a formation process of an SEI film during first charging and discharging.
Resumen de: US2025260041A1
An apparatus for producing an electrode stack from electrode stack elements is provided. A stacking wheel has at least one stacking wheel disc, which can be rotationally driven about an axis of rotation and which has compartments for receiving the electrode stack elements. A stripper strips the electrode stack elements from the compartments during a rotation of the stacking wheel. A shelf is provided for the electrode stack elements stripped from the stacking wheel. A conveyor conveys the electrode stack elements into the compartments. The conveyor comprises a transfer device for transferring the electrode stack elements into the compartments and a feeding device for feeding the electrode stack elements to the transfer device. A method for producing an electrode stack using the apparatus is also provided.
Resumen de: US2025259996A1
An all-solid-state lithium ion secondary battery includes the lithium-free negative electrode having two or more carbon materials with different particle sizes to increase the contact area with the solid electrolyte. The all-solid-state lithium ion secondary battery includes a positive electrode, a solid electrolyte layer, a negative electrode current collector, and a negative electrode active material layer disposed between the solid electrolyte layer and the negative electrode current collector, wherein the negative electrode active material layer includes a first carbon material; a second carbon material; and Ag; wherein the first carbon material and the second carbon material have different average particle sizes.
Resumen de: US2025260020A1
A composite current collector, including a metal substrate layer and a functional layer located on a surface of the metal substrate layer; where the functional layer is analyzed using an energy dispersive spectrometer, and based on a total number of atoms of the C element, the O element, and a metal element in the functional layer, an atomic percentage of the C element in the functional layer is x, an atomic percentage of the O element in the functional layer is y, and an atomic percentage of the metal element in the functional layer is z, satisfying: 5%≤x≤25%, 10%≤y≤30%, and 55%≤z≤85%. The functional layer with specific element contents on the surface of the metal substrate layer, a coverage of a coating on a surface of the composite current collector can be effectively improved while electrical performance is ensured, thereby improving the safety of the electrochemical device.
Resumen de: WO2025167015A1
A battery (1) and an electric device. The battery (1) comprises: a case body (200); battery cells (102), which are provided in the case body (200); a first heat exchange member (100), which is fitted to the outside of the case body (200); and a fixing member (25), which is provided on the case body (200), wherein the fixing member (25) is arranged close to at least one edge (100d) of the first heat exchange member (100), and is fastened and connected to the first heat exchange member (100) and the case body (200).
Nº publicación: EP4599500A1 13/08/2025
Solicitante:
PLASTIC OMNIUM CLEAN ENERGY SYSTEMS RES [FR]
Plastic Omnium Clean Energy Systems Research
Resumen de: WO2024074500A1
The invention relates to a structure (2) for producing a cooling device (1) for a battery module. According to the invention, the structure (2) comprises a first panel (20) comprising a first cooling circuit (200), a second panel (22) and a third panel (24) comprising a second cooling circuit (240), the first panel (20) being connected to the second panel (22) by a first folding area (21), the second panel (22) being connected to the third panel (24) by a second folding area (23).
BOPI
Sede Electrónica
