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965
results.
Updated on
01/09/2025 [07:09:00]
Results 25 to 50 of 965
Absstract of: WO2025177405A1
This electrode composition is for a secondary battery electrode layer and comprises an electrolytic solution. The electrode composition satisfies all of criteria (1) through (4): (1) the composition contains an active substance and an additive but does not contain a binder resin; (2) the HSP distance (Ra_Act) between the additive and the active substance is 12.0 MPa0.5 or less; (3) the HSP distance (Ra_Elec) between the additive and the electrolytic solution is 14.0 MPa0.5 or less; and (4) the weight average molecular weight (Mw) of the additive is 50,000 or less.
Absstract of: WO2025177116A1
Provided is a novel positive electrode active material. A positive electrode active material according to the present invention includes a lithium cobalt oxide. The lithium cobalt oxide includes magnesium, aluminum, and nickel. A powder of the lithium cobalt oxide has a volume resistivity of at least 1.0×E+8 Ω⋅cm but no more than 5.0×E+8 Ω⋅cm at a pressure of 64 MPa. When the lithium cobalt oxide is analyzed by XPS, the magnesium concentration (Mg/Co) is at least 0.50 but no more than 0.90 relative to a cobalt concentration of 1, and the half width of the Mg 1s peak is at least 1.0 eV but no more than 2.6 eV.
Absstract of: WO2025177213A1
Electrochemical energy-storage cells that include cores having cathode-active materials of both nickel-oxide (NO) type and metal-based phosphate (MP) type, wherein the MP active material is provided to increase resistance to thermal runaway. In some embodiments: the NO and MP active materials are provided on differing cathodes; cathodes include a blend of the NO and MP active materials; a weight ratio of MP active material to NO active material varies within a cathode-active layer, in some cases with a weight percentage of MP active material increasing in a direction away from a current collector; cathodes include a cathode-active layer having multiple sublayers having differing uniform blends of NO and MP materials; cathodes include discrete NO and MP layers, with some embodiments having the NO layer located between the MP layer and a current collector; and/or cathodes include particles each composed of both NO and MP active materials. Methods are also disclosed.
Absstract of: WO2025176203A1
The present disclosure relates to the field of batteries. Provided are a gel electrolyte precursor fluid, a gel electrolyte solution, a lithium secondary battery and a preparation method therefor. The gel electrolyte precursor fluid comprises a reaction monomer, a cross-linking agent, an initiator and an electrolyte solution, wherein the reaction monomer comprises at least one of the compounds represented by formula 1, and the cross-linking agent comprises at least one of the compounds represented by formula 2-1 and formula 2-2. The gel electrolyte prepared from the gel electrolyte precursor fluid has relatively high oxidation resistance, and also has a relatively high ionic conductivity and a relatively high mechanical strength.
Absstract of: WO2025176041A1
A layered oxide positive electrode material and a preparation method therefor, a positive electrode composition, a sodium-ion secondary battery and the use. The layered oxide positive electrode material has the following general formula: NaaNibCucMndTieMfOg, wherein M is a doping element, a=0.75-0.95, b=0.33-0.45, c=0.03-0.15, d=0.20-0.45, e=0.05-0.20, f=0-0.1, and g=1.80-2.20. In an XRD pattern of the layered oxide positive electrode material, the peak intensity ratio I(101)/I(003)=0.02-0.15, the peak intensity ratio I(101)/I(012)=0.35-0.47, and the peak intensity ratio I(101)/I(006)=0.08-0.57.
Absstract of: WO2025175853A1
An electric-vehicle safety monitoring system and apparatus. The electric-vehicle safety monitoring system comprises a main-control terminal, wherein a detection unit is connected to the main-control terminal, and the detection unit is used for performing comprehensive detection on a battery pack of an electric vehicle; a computing unit is connected to the detection unit, and the computing unit is used for receiving data of the detection unit; a prompting unit is connected to the computing unit, and the prompting unit is used for receiving a result of the computing unit and taking a corresponding measure on the basis of the result of computation; and the detection unit comprises a temperature and humidity monitoring module, the temperature and humidity monitoring module comprises a substrate (100), a protective shell (101) is mounted on one end of the top of the substrate (100), a connecting line (102) is mounted on the other end of the substrate (100), and buffer assemblies are provided at four corners of the substrate (100), and by means of the provision of the buffer assemblies, when the electric vehicle runs, the influence of a vibration force on the whole temperature and humidity monitoring module can be reduced. Systematical and comprehensive detection and analysis are performed on a battery pack by means of a detection unit, and thus an early-warning period is extended and the service life of the battery pack is prolonged.
Absstract of: WO2025175904A1
The present application provides an electrode sheet and a battery cell. The electrode sheet comprises a current collector and an active material layer arranged on at least one side surface of the current collector; and the electrode sheet comprises a single-sided area, one side of the current collector located in the single-sided area is provided with the active material layer, and the active material layer located in the single-sided area is provided with grooves. By means of forming the grooves on the active material layer located in the single-sided area, the bending degree of the single-sided area of the electrode sheet can be reduced, and when the electrode sheet is used to assemble the battery cell, the adhesion between the single-sided area of the electrode sheet and a separator is improved, thereby shortening a transport pathway of lithium ions of the battery cell during charge and discharge, and alleviating problems such as lithium precipitation and black spots.
Absstract of: WO2025176157A1
The present application provides an explosion-proof battery valve and a battery. The explosion-proof battery valve comprises a protective shell (1), a piercing pin (2) and a diaphragm (3). The protective shell (1) comprises a shell body (11) and a protective cover (12) which are integrally connected by means of injection molding, wherein the shell body (11) is in the shape of a cylinder with two open ends, and radial exhaust holes (111) are formed in the peripheral wall of the shell body (11); the protective cover (12) is connected to one end opening of the shell body (11) in a plugged manner; and the other end opening of the shell body (11) is a pressure relief hole (113), and the pressure relief hole (113) communicates the radial exhaust holes (111) with the interior of a battery. The piercing pin (2) is arranged on the top wall of the protective cover (12), and is located in an inner cavity of the shell body (11). The diaphragm (3) is arranged in the pressure relief hole (113) in a covering manner, and gas discharged from the interior of the battery can drive the diaphragm (3) to deform towards the piercing pin (2), such that the diaphragm (3) is pierced by the piercing pin (2).
Absstract of: WO2025176150A1
Provided in the present application are a silicon-carbon composite material and a preparation method therefor, and a secondary battery. The silicon-carbon composite material comprises a core and a shell coating the core, wherein the shell comprises a carbon material; and the core comprises a carbon framework, a first silicon-deposited layer formed on the carbon framework, a second silicon-deposited layer formed on the first silicon-deposited layer, and an oxide layer formed between the first silicon-deposited layer and the second silicon-deposited layer, the oxide layer comprising SiOx (0.5≤x≤2). The silicon-carbon composite material provided by the present application has a good specific capacity and initial coulombic efficiency, and also has relatively high cycle performance and rate capability.
Absstract of: WO2025176147A1
A pre-charging method, a pre-charging apparatus, a controller, and a vehicle. The pre-charging method comprises: in response to a pre-charging instruction of a target device, acquiring a first initial temperature of a target component in a pre-charging circuit; controlling the pre-charging circuit to pre-charge a load, and acquiring the number of times of pre-charging and a total pre-charging duration; determining a first real-time temperature of the target component in the pre-charging process on the basis of the total pre-charging duration, a pre-charging temperature rise coefficient of the target component, and the first initial temperature; and controlling the pre-charging circuit on the basis of the first real-time temperature and the number of times of pre-charging. The temperature rise safety of the target component is protected, and pre-charging safety is improved.
Absstract of: WO2025176154A1
Provided is a station building-based energy storage power station safety protection structure, comprising a plurality of battery clusters arranged within a battery room, the plurality of battery clusters being arranged in an array. A cooling air duct is arranged, within the configuration of a station building, at the rear of the battery clusters. The cooling air duct is provided with cold air outlets corresponding to each battery cluster row. Auxiliary air ducts, which connect to the cold air outlets, are provided and correspond to each battery cluster row. An air exchange vent is provided on each auxiliary air duct at an end facing away from the cooling air duct, and a waste heat utilization plate heat exchanger apparatus is arranged on an inner wall of the battery room, on a side furthest from the cold air outlets. A fire extinguishing system is provided within the station building, the fire extinguishing system comprising a plurality of aerosol fire-extinguishing apparatuses arranged on the inner walls of the station building, and a foam fire-extinguishing system arranged above the battery clusters. A sensor group is arranged on a top wall within the battery room, and the sensor group and the fire extinguishing system are electrically connected to a single controller.
Absstract of: WO2025175956A1
An energy storage device and an energy storage system. The energy storage device comprises a fire-fighting module (1) and at least one battery pack (2), wherein the fire-fighting module comprises a first box (11), the first box being used for storing a fire-fighting medium, and a medium spraying port (111) being provided in an outer wall of the first box; and each battery pack comprises a second box (21) and a plurality of batteries, the second box being used for accommodating the plurality of batteries, an opening (211) being provided in an outer wall of the second box, and the opening of each second box being configured to be in communication with the medium spraying port of the fire-fighting module through a pipeline. The energy storage device and the energy storage system can ameliorate the problem of it being impossible to accurately extinguish a fire at a point of origin inside an energy storage device in the case where a fire-fighting system is arranged in a building system where the energy storage device is located.
Absstract of: WO2025175999A1
A battery cell shaping device (100) and a winding machine. The battery cell shaping device (100) comprises: a support (10); a first press plate (20), the first press plate (20) being connected to the support (10); and a second press plate (30), the second press plate (30) being movably arranged on the support (10) in a first direction, and the second press plate (30) and the first press plate (20) being spaced apart from each other in the first direction to form an accommodating space (31) for accommodating a battery cell (200). By providing on the support (10) the first press plate (20) and the second press plate (30) which are spaced apart from each other, and moving the second press plate (30) close to the first press plate (20) in the first direction, the battery cell shaping device (100) shapes the battery cell (200), and has the advantage of simple and compact structure. Both the first press plate (20) and the second press plate (30) are connected to the support (10), so that a reaction force can be dispersed by means of the support (10) during the shaping of the battery cell (200), thereby helping to improve the strength and reliability of the battery cell shaping device (100).
Absstract of: WO2025175805A1
The present application relates to the field of materials. Provided are a graphite negative electrode material, a preparation method therefor, a lithium ion battery and an electrical device. The preparation method for the graphite negative electrode material comprises: graphitizing a coke feedstock, so as to obtain a graphite aggregate; mixing asphalt with a polymer modifier, and carrying out a first heat treatment in a protective atmosphere, so as to obtain modified asphalt, the polymer modifier comprising one or more of a styrene-butadiene-styrene block copolymer, a hydrogenated styrene-butadiene block copolymer, an ethylene-vinyl acetate copolymer, styrene butadiene rubber, a styrene-isoprene copolymer and a styrene-ethylene-butylene-styrene block copolymer; mixing the graphite aggregate with the modified asphalt, and then carrying out a second heat treatment for granulation, so as to obtain a precursor; and carrying out a third heat treatment on the precursor, and performing screening and demagnetization, so as to obtain the high-energy-density and fast-charging graphite negative electrode material. The graphite negative electrode material obtained by the method provided by the present application has high energy density and superfast-charging performance.
Absstract of: WO2025175896A1
The present application relates to a thermal management device, a battery, and an electric device. The thermal management device comprises a heat exchange unit, and the heat exchange unit comprises: a heat exchange tube section, the heat exchange tube section being provided with an inlet end, an outlet end, and a heat exchange channel communicated with the inlet end and the outlet end; and collecting tube sections, the inlet end and the outlet end both being connected to the collecting tube sections, wherein the tube width of at least one collecting tube section is less than that of the heat exchange tube section. According to the thermal management device provided in the present application, the risk of thermal runaway of the battery can be reduced, and a space layout requirement of the thermal management device can be met.
Absstract of: WO2025175832A1
An explosion-proof valve (100), a cover plate assembly, a battery cell, a battery pack and an electric system. The explosion-proof valve (100) comprises: a main body (1), an explosion-proof sheet (2) and a temperature-sensitive membrane (3), wherein the main body (1) is provided with a pressure relief hole (11), which penetrates in the direction of the thickness of the main body; the explosion-proof sheet (2) is connected to the main body (1), and the explosion-proof sheet (2) covers the pressure relief hole (11); and the temperature-sensitive membrane (3) is connected to the main body (1), the temperature-sensitive membrane (3) covers the pressure relief hole (11), and the temperature-sensitive membrane (3) is made of plastic, such that a critical rupture pressure value of the temperature-sensitive membrane (3) is inversely proportional to the temperature of the explosion-proof valve (100).
Absstract of: WO2025178338A1
This battery diagnostic apparatus comprises a memory for storing at least one instruction and at least one processor that executes the at least one instruction, wherein the at least one processor may: execute a charging process in which a charging period at a specific charging rate for a battery cell and a first rest period are alternately repeated or execute a discharging process in which a discharging period at a specific discharging rate for the battery cell and a second rest period are alternately repeated; acquire the resistance of the battery cell during the execution of the charging process or the discharging process; and diagnose the charging capacity of the battery cell on the basis of the resistance of the battery cell.
Absstract of: WO2025178046A1
This power storage device case (1) is provided with a case body (3) which has a top wall (31), a side wall (32) provided on the outer peripheral edge of the top wall (31), and a flange (33) provided on the outer periphery of the side wall (32), and in which a housing part (35) is provided inside the top wall (31) and the side wall (32). The case body (3) is formed from a molded body of a power storage device exterior material (1). The exterior material (1) includes: a resin base layer (11); a metal foil layer (12) that is laminated on an inner surface side of the base layer (11); a resin heat-resistant gas barrier layer (13) that is laminated on an inner surface side of the metal foil layer (12); and a resin sealant layer (15) that is laminated on an inner surface side of the heat-resistant gas barrier layer (13). The sealant layer (15) is provided with an opening (2) for exposing the heat-resistant gas barrier layer (13) in the housing part (35), and an outer peripheral edge section (21) of the opening (2) is set at the flange (33).
Absstract of: WO2025178163A1
The present invention relates to an external insulating tape attached to the outside of a case, a secondary battery to which the insulating tape is applied, and a manufacturing method thereof. The technical problem to be solved is to provide an insulating tape capable of being attached to the entire outer surface of a case including a surface on which an external terminal of a secondary battery is installed, a secondary battery to which the insulating tape is applied, and a manufacturing method thereof. To this end, the present invention provides a secondary battery comprising: an electrode assembly; a case in which the electrode assembly is embedded; a cap plate bonded to the case and including a terminal connected to the electrode assembly; and an insulating tape attached to an outer surface of the case, wherein the outer surface of the case comprises a surface of the cap plate, and the insulating tape comprises an upper surface attachment part attached to the surface of the cap plate.
Absstract of: WO2025178173A1
The present invention relates to an apparatus for pressurizing an electrode body and a method for pressurizing an electrode body and, more specifically, the apparatus comprises: a die plate including a landing portion and a peripheral portion surrounding the landing portion; a cavity structure on the peripheral portion, wherein the cavity structure includes a cavity exposing the landing portion and providing a space in which an electrode body to be subjected to a pressurization process is accommodated on the landing portion; and a punch structure on the cavity structure. The die plate includes a metal, and each of the cavity structure and the punch structure includes an elastic material.
Absstract of: WO2025178093A1
A power storage device (10) comprises: a first power storage cell (211) and a second power storage cell (221) that are aligned in a first direction with spacing therebetween; and a cross member (40) that extends along a second direction orthogonal to the first direction and is disposed in the gap between the first power storage cell (211) and the second power storage cell (221). The cross member (40) is provided with a hollow portion (H) in a cross section perpendicular to the second direction. The cross member (40) has: a first wall portion (41) that faces the first power storage cell (211) in the first direction; and a partition wall (45) that intersects the first direction in the cross section and partitions the hollow portion (H). At least a part of the partition wall (45) is provided with a region having a higher reflectance than that of the first wall portion (41).
Absstract of: WO2025178092A1
A power storage device (10) comprises: a first power storage cell (211) and a second power storage cell (221) that are arranged side by side and separated by an interval in a first direction; and a cross member (40) that extends along a second direction orthogonal to the first direction and is disposed in a gap between the first power storage cell (211) and the second power storage cell (221). The cross member (40) is provided with a hollow part (H) in a cross section perpendicular to the second direction. The cross member (40) includes: a first wall (41) that opposes the first power storage cell (211) in the first direction; and a partition wall (45) that intersects the first direction in the cross section and partitions the hollow part (H). The thickness of the partition wall (45) is less than or equal to the thickness of the first wall (41).
Absstract of: WO2025177814A1
This power storage element of the present embodiment is characterized by comprising an electrode body in which a plurality of electrode plates are layered, a container that accommodates the electrode body, and a pair of electrode terminals that are electrically continuous with the electrode body. The power storage element is also characterized in that: the container, when observed from a first direction, which is a prescribed horizontal direction, has a rectangular shape that is long in a second direction which is perpendicular to the first direction and horizontal, and among the four corners of the rectangular shape, at least two corners on one side in the vertical direction each have a notch; the notch comprises a terminal disposition surface that extends in an oblique direction that intersects both a long side and short side of the rectangular shape which is observed from the first direction, the long side being on the one side in the vertical direction, and the short side being on one side in the second direction of the rectangular shape or being on the other side in the second direction; and the electrode terminals are disposed on the respective terminal disposition surfaces.
Absstract of: WO2025178023A1
Provided are: a cleaning method for safely and efficiently cleaning the insides of devices that configure a production apparatus for a sulfide solid electrolyte; and a production method and a production apparatus for a sulfide solid electrolyte. This cleaning method for devices that configure a production apparatus for a sulfide solid electrolyte comprises: cleaning, with water, a sulfur atom-containing substance attached to the insides of the devices; and bringing a fluid containing a gas generated by the cleaning into contact with an alkaline aqueous solution. This production method for a sulfide solid electrolyte adopts said method. This production apparatus for a sulfide solid electrolyte comprises a water supply facility used in said cleaning method for devices.
Nº publicación: WO2025177871A1 28/08/2025
Applicant:
PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
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Absstract of: WO2025177871A1
Provided is a nonaqueous electrolyte for secondary batteries which comprises at least one trithiane compound selected from the group consisting of compounds (A) represented by general formula (A) and compounds (B) represented by general formula (B). In general formula (A), R1 to R6 are each independently a hydrogen atom, an organic group, or an inorganic group, and l, m, and n are each independently an integer of 0 or larger and at least one of l, m, and n is 1 or larger. In general formula (B), R1 to R6 are each independently a hydrogen atom, an organic group, or an inorganic group, and l, m, and n are each independently an integer of 0 or larger and at least one of l, m, and n is 1 or larger. The compounds (A) and the compounds (B) are independent of each other.
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