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1797
resultados
Última actualización
13/10/2025 [15:43:00]
Resultados 850 a 875 de 1797
Resumen de: WO2025200528A1
Disclosed in the present application are a terminal post assembly, an energy storage device and an electric device. The terminal post assembly comprises a first terminal post and a first flange connected to one end of the first terminal post. The first terminal post comprises a first member and a second member, which are stacked and connected to each other, wherein the second member is connected to the first flange. The material of the first member is different from that of the second member, and a connection interface between the first member and the second member is a curved surface. The first terminal post is configured to be connected to an electrode assembly of an energy storage device, and the first flange is configured to be connected to a first busbar.
Resumen de: WO2025199693A1
The present application provides an electrolyte, a secondary battery containing the electrolyte, and an electronic device. The electrolyte comprises lithium difluorophosphate and a metal cation salt, wherein a metal cation of the metal cation salt has a valence of +2 or higher, and an acid radical ion of the metal cation salt comprises an anionic group represented by formula I-A or an anionic group represented by formula I-B; and on the basis of the mass of the electrolyte, the mass percentage content of the lithium difluorophosphate is A%, the mass percentage content of the metal cation salt is B%, 2≤A≤8.8, and 1≤A/B≤2.2. The electrolyte of the present application comprises lithium difluorophosphate and a metal cation salt, which is conducive to exhibiting the function of the lithium difluorophosphate and facilitating the formation of stable SEI and CEI films, thereby improving the cycle performance and high-temperature storage performance of the secondary battery.
Resumen de: WO2025205466A1
A lithium ion secondary battery positive electrode according to the present invention includes a positive electrode active material layer. A positive electrode active material included in the positive electrode active material layer includes single crystal particles (A) formed from a lithium composite oxide (X) that has a layered rock salt crystal structure and single crystal particles (B) formed from the lithium composite oxide (X) that has a layered rock salt crystal structure. The average particle size d50 of the single crystal particles (A) on a volume-based particle size distribution found by laser diffraction scattering particle size distribution measurement is smaller than the average particle size d50 of the single crystal particles (B) on a volume-based particle size distribution found by laser diffraction scattering particle size distribution measurement. When A50 and A90 are the average particle size d50 of the single crystal particles (A) and the particle size d90 at a cumulative value of 90% on a volume-based particle size distribution found by laser diffraction scattering particle size distribution measurement and B50 and B10 are the average particle size d50 of the single crystal particles (B) and the particle size d10 at a cumulative value of 10% on a volume-based particle size distribution found by laser diffraction scattering particle size distribution measurement, the lithium ion secondary battery satisfies at least one of (1)-(3). (1) The ratio (A90/B50) o
Resumen de: WO2025204865A1
A negative electrode (12) for a secondary battery comprises: a long negative electrode core body (30); and a negative electrode mixture layer (32) disposed on the negative electrode core body (30). A region extending from one end to the other end of the negative electrode mixture layer (32) in the longitudinal direction includes a first region (12a) and a second region (12b) having different negative electrode plate swelling rates. The first region (12a) has a smaller negative electrode plate charge swelling rate than the second region (12b). When the ratio (S1/S1+2) of the area (S1) of the first region (12a) to the total area (S1+2) of the first region (12a) and the second region (12b) is x and the ratio (E1/E2) of the negative electrode plate charge swelling rate (E1) of the first region (12a) to the negative electrode plate charge swelling rate (E2) of the second region (12b) is y, |f(x, y)|≤3 is satisfied for two-variable function f(x, y)=21.5x-5.59x2-2.00y+1.73y2-20.7xy-3.37 having x and y as variables.
Resumen de: WO2025206569A1
The battery cell according to an embodiment of the present invention comprises: an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis to define a core and an outer circumferential surface, wherein the first electrode includes an active material portion coated with an active material layer along the winding direction and a first uncoated portion which is not coated with an active material layer, and at least a portion of the first uncoated portion itself is used as an electrode tab; a battery housing configured to accommodate the electrode assembly through an opening formed on one side thereof; a housing cover configured to cover the opening and including a through-hole at the center thereof; and a recessed ball configured to be inserted into the through-hole.
Resumen de: WO2025206449A1
The present invention relates to an all-solid-state battery, a method for manufacturing same, and equipment for manufacturing same. More specifically, the present invention provides a method comprising: forming a first composite sheet including a first carrier film and a first composite layer; forming a first datum hole in the first carrier film in a self-aligned manner with the first composite layer; forming a second composite sheet including a second carrier film and a second composite layer; forming a second datum hole in the second carrier film in a self-aligned manner with the second composite layer; aligning the first datum hole and the second datum hole with each other; and laminating the first composite layer of the first composite sheet and the second composite layer of the second composite sheet together.
Resumen de: WO2025200287A1
The present application relates to a particle embedding device, a particle embedding system and a battery production line. The particle embedding device (100) comprises a film feeding mechanism (10), embedding mechanisms (20) and a feeding mechanism (30). The film feeding mechanism (10) is used for conveying a film to be treated (400); the embedding mechanisms (20) are rotatably arranged around a set axis, the set axis is perpendicular to the traveling direction of said film (400), and the surface of each embedding mechanism (20) is provided with suction portions (21) that can be arranged close to said film (400), and can also be arranged away from said film (400); the feeding mechanism (30) is communicated with the embedding mechanisms (20), and is used for providing objects to be embedded (40) to the suction portions (21); and when the suction portions (21) are close to said film (400), said objects (40) located at the suction portions (21) can be embedded into said film (400). When said film (400) passes through the embedding mechanisms (20) during traveling, said objects (40) can be embedded into the surface of said film (400), so that the properties of said film (400) are changed. The strength, the elastic modulus, the surface roughness and other properties of the treated film (400) are improved, and therefore the strength, the elastic modulus, the surface roughness and other properties of a finally obtained composite current collector are also improved.
Resumen de: WO2025204468A1
Provided are a method for producing a modified sulfide solid electrolyte, and a modified sulfide solid electrolyte, the method including crushing a sulfide solid electrolyte, from which a high-quality modified sulfide solid electrolyte can be efficiently produced, while adding an organic modifier.
Resumen de: WO2025206230A1
Provided is a sulfide solid electrolyte production method in which a solid electrolyte raw material is once heated to obtain a calcined product and is further heated to obtain a sulfide solid electrolyte. The sulfide solid electrolyte production method includes: obtaining a calcined product by heating a raw material-containing material that contains a lithium atom, a phosphorus atom, a sulfur atom, and a halogen atom and from which a sulfide solid electrolyte having more excellent ion conductivity can be efficiently produced; subjecting the calcined product to an amorphization treatment to obtain an amorphous product; and heating the amorphous product.
Resumen de: WO2025203749A1
A diagnostic program (P) for diagnosing a battery pack (2) that includes a plurality of battery modules (2a) causes a processor (10) to: acquire module identification information (B), module arrangement information (C), and usage history information (D) of the plurality of battery modules (2a) included in the battery pack (2); diagnose the plurality of battery modules (2a) on the basis of the usage history information (D); and associate the diagnosis results from the diagnosis with the module identification information (B) on the basis of the module arrangement information (C).
Resumen de: WO2025203750A1
A diagnosis program (P) causes a processor (10) to use a battery degradation model formula (Ma) to specify a degradation factor of a battery module (2a), wherein the battery degradation model formula (Ma) is obtained by linear regression analysis in which the degradation amount of characteristic data (E) of the battery module (2a) is used as an objective variable (Y) and in which usage history data (D) of the battery module (2a) during measurement of the characteristic data (E) and the power (D') of the usage history data are used as explanatory variables (X), and through modeling in which the coefficient of each term of the explanatory variables (X) is predefined as positive or negative.
Resumen de: WO2025205495A1
A lithium ion secondary battery (10) provided with a positive electrode that includes a positive electrode active material layer (1), a negative electrode that includes a negative electrode active material layer (2), and an electrolyte, wherein: the negative electrode active material included in the negative electrode active material layer (2) has an SEI film on at least a portion of the surface thereof; the electrolyte contains lithium difluorophosphate; and the lithium difluorophosphate concentration in the electrolyte determined using a prescribed method is 0.01 mass% to 1.10 mass%.
Resumen de: WO2025206828A1
A cathode active material for a lithium secondary battery according to the present invention is a cathode active material for a single-crystal active material for a lithium secondary battery, wherein the cathode active material comprises an aggregate of 1 to 20 single particles, and the single particles may satisfy equation 1 in the present specification.
Resumen de: WO2025200127A1
Provided in the embodiments of the present application are a battery and an electric device. The battery comprises a case, thermal management components, supporting members and a plurality of battery cell groups. The plurality of battery cell groups are arranged in the case, and each battery cell group comprises at least one battery cell. In a first direction, the battery cell groups are provided on both sides of each thermal management component, and the thermal management components are configured to manage the temperature of battery cells. The supporting members are arranged in the case and are connected to the case. In the first direction, the supporting members and the thermal management components are stacked, and the supporting members support the thermal management components. The battery can reduce the risk that the battery cell groups on lower sides of the thermal management components are damaged due to the fact that said battery cell groups bear the gravity of the battery cell groups on upper sides of the thermal management components, thereby reducing the risk of the battery cells deforming and short-circuiting due to damage, and thus improving the reliability of the battery.
Resumen de: WO2025205496A1
A lithium ion secondary battery (10) provided with a positive electrode that includes a positive electrode active material layer (1), a negative electrode that includes a negative electrode active material layer (2), and an electrolyte, wherein: the negative electrode active material included in the negative electrode active material layer (2) has an SEI film on at least a portion of the surface thereof; the electrolyte contains lithium tetrafluoroborate; and the lithium tetrafluoroborate concentration in the electrolyte determined using a prescribed method is 0.01 mass% to 0.50 mass%.
Resumen de: US2025303922A1
To restrain performance deterioration of a secondary battery caused by peeling-off of a negative electrode active material, a control apparatus for a secondary battery includes a state of charge (SOC) sensor and a controller. The controller determines whether or not, for at least one of a plurality of battery modules, an SOC is not less than a predetermined first reference value, and when the SOC is not less than the first reference value, performs a first control of connecting the plurality of battery modules one by one to a motor and causing the plurality of battery modules to discharge one by one until the SOC of each battery module has decreased to the first reference value.
Resumen de: US2025303842A1
A vehicle includes a first heat exchange plate having a first refrigerant layer and a first coolant layer, and a second heat exchange plate having a second refrigerant layer and a second coolant layer. The first and second exchange plates are respectively capable of exchanging heat with first and second battery packs. When a first temperature of the first battery pack and the second battery pack is lower than a first threshold temperature, a vehicle control device causes a refrigerant to circulate through the first refrigerant layer at a first flow rate, and causes the refrigerant to circulate through the second refrigerant layer at a second flow rate. When a third temperature of the first battery pack is higher than a second threshold temperature, the vehicle control device charges the first battery pack and causes the coolant to circulate through the first and second coolant layers in this order.
Resumen de: US2025303813A1
A battery chiller for a vehicle includes a housing having a first inlet, a second inlet opposing the first inlet, a first outlet having a toroid structure surrounding the second inlet, and a second outlet having a toroid structure surrounding the first inlet. A lattice is disposed within the housing defining a first plurality of channels and a second plurality of channels. The lattice defines a first inlet duct in fluid communication with the first inlet and the first channels, and a second inlet duct in fluid communication with the second inlet and the second channels. A first flow path is defined from the first inlet, through the first inlet duct, through the first plurality of channels and to the first outlet, and a second flow path is defined from the second inlet, through the second inlet duct, through the second plurality of channels and to the second outlet.
Resumen de: US2025303919A1
A battery control system for an electric vehicle includes a plurality of battery packs each including an authorized battery pack having authority to output electric power to drive an electric motor to generate drive power for the electric vehicle, and an unauthorized battery pack not having the authority. A plurality of controllers of the plurality of battery packs are configured or programmed to mutually transmit/receive internal information on states of the respective battery packs. At least one of the plurality of controllers is configured or programmed to change the authorized battery pack to another battery pack among the plurality of battery packs based on the internal information.
Resumen de: WO2025200221A1
A battery, a negative electrode sheet, a preparation method for the negative electrode sheet, and an electric device. The battery comprises the negative electrode sheet, and the negative electrode sheet comprises a base layer and a negative electrode active layer arranged on at least one side surface of the base layer; the negative electrode active layer comprises a negative electrode active material and an interface material, the negative electrode active material comprises a graphite material, and the interface material comprises an organic salt containing a metal element; the metal element includes one or more of Li, Na, K, Mg, or Al, and the organic salt comprises organic acid anions; and in addition to the carboxyl group involved in salt formation, the organic acid anions comprise at least one functional group, and the functional group includes any one of carbon-carbon double bonds, amino groups, or ether groups. The method can improve the initial efficiency and prolong the cycle life of the battery.
Resumen de: WO2025200366A1
A cylindrical battery (1000) and an electrical device having same. The cylindrical battery (1000) comprises a core (100) and a current-collecting disc (200), wherein the core (100) is formed in a cylindrical shape. In the axial direction of the core (100), a tab welding region (110) is provided on at least one side of the core (100), and the current-collecting disc (200) is suitable for welding and connecting to the tab welding region (110). In the direction parallel to the radial direction of the core (100), the current-collecting disc (200) is provided with an outer ring region (210), a middle ring region (220) and an inner ring region (230) from the outside to the inside, the middle ring region (220) being located between the outer ring region (210) and the inner ring region (230). The middle ring region (220) is provided with first weld patterns (241), and at least one of the inner ring region (230) and the outer ring region (210) is provided with second weld patterns (242), the first weld patterns (241) extending in the radial direction of the core (100), and the second weld patterns (242) extending in the circumferential direction of the core (100). The current-collecting disc (200) is welded and connected to the tab welding region (110) by means of the first weld patterns (241) and the second weld patterns (242).
Resumen de: WO2025205198A1
The present invention pertains to a substance transfer device that is for a substance containing at least one kind selected from sulfur atoms and halogen atoms, that enables safe and efficient handling of a substance containing at least one kind selected from sulfur atoms and halogen atoms, and that comprises a spare chamber for transfer, a transfer substance inlet and a transfer substance outlet, and an introduction mechanism and a discharge mechanism for an inert gas. The transfer substance inlet and the transfer substance outlet are provided to the spare chamber for transfer and are capable of being joined to a first substance inlet and a first substance outlet of a first container for a substance, and to a second substance transfer port of a second container for a substance. The introduction mechanism for an inert gas introduces the inert gas into the spare chamber for transfer. The discharge mechanism for an inert gas discharges the inert gas from the spare chamber for transfer. Also, the present invention pertains to a transfer method and a method for removing an internal residue in an apparatus for a substance.
Resumen de: WO2025200346A1
An electrical device, which is provided with a battery. The battery is provided with electrode sheets. Each electrode sheet comprises an electrode sheet body, the electrode sheet body comprising a coated material region and an uncoated foil region disposed in sequence in a first direction. The coated material region is provided with an active material layer. The uncoated foil region is provided with flow guide grooves, the flow guide grooves being adapted for flow-through of electrolyte. By means of the provision of the flow guide grooves on the uncoated foil region between a tab and the coated material region, when the electrode sheet is wound, the flow guide grooves enable flow-through of the electrolyte, thereby increasing the diffusion rate of the electrolyte in a tab area, improving the production capacity during electrolyte injection and aging processes.
Resumen de: WO2025200486A1
The present application relates to an electrode assembly, a battery, and an electric device. The electrode assembly comprises a negative electrode sheet, a separator, and a positive electrode sheet. The separator is arranged on one side of the negative electrode sheet; the separator comprises a base material and a bonding layer; the bonding layer is arranged on the surface of the base material; the bonding layer comprises first polymers; and the first polymers are copolymers of vinylidene fluoride and hexafluoropropylene. The positive electrode sheet is arranged on the side of the separator facing away from the negative electrode sheet; the positive electrode sheet comprises a current collector layer and an active material layer which are stacked; the active material layer is arranged on the surface of the current collector layer and faces the bonding layer; the active material layer comprises active particles and second polymers; the second polymers are granular; the second polymers are dispersed in the active particles; and the second polymers are bonded to the first polymers.
Nº publicación: WO2025206602A1 02/10/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
\uC8FC\uC2DD\uD68C\uC0AC \uC5D8\uC9C0\uC5D0\uB108\uC9C0\uC194\uB8E8\uC158
Resumen de: WO2025206602A1
The present invention relates to a fire-extinguishing composition and a battery pack comprising same. The fire-extinguishing composition comprises an inorganic compound and a polybasic acid compound in a predetermined content ratio and has the viscosity at room temperature controlled to be within a predetermined range and thus, when a thermal event occurs in the battery pack, enables a fire-extinguishing film to be uniformly formed at the spot where the event has occurred, thereby having high cooling and smothering effects for fire-extinguishing. In addition, the battery pack comprising same enables rapidly detecting a spot where a thermal event has occurred and directly and intensively spraying the fire-extinguishing composition on said spot and thus has the advantages of not only enabling the easy prevention of the spreading of the thermal event but also enabling the reduction of the time required to resolve the event.
BOPI
Sede Electrónica
