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1344
resultados
Última actualización
09/09/2025 [07:15:00]
Resultados 400 a 425 de 1344
Resumen de: WO2025183206A1
A positive electrode mixture including: a conductivity aid that is a carbon material; a sulfur-based active material; and a solid electrolyte, wherein the variation in luminance intensity in the same field of view is 0.250 or less in a secondary electron image from a scanning electron microscope, and at least part of the solid electrolyte is crystalline with the crystallite diameter thereof being 40 nm or more.
Resumen de: WO2025183129A1
This lithium secondary battery includes: a positive electrode (11); a negative electrode (12); a separator (13) disposed between the positive electrode (11) and the negative electrode (12); a non-aqueous electrolyte; and a spacer (50) disposed between the separator (13) and either the positive electrode (11) or the negative electrode (12). At the negative electrode (12), lithium metal precipitates during charging, and the lithium metal is dissolved during discharging. The negative electrode (12) contains a lithium alloy containing magnesium. A protective layer (40) containing a fluorinated polymer is disposed on a surface of the negative electrode (12).
Resumen de: WO2025183131A1
This lithium secondary battery includes: a positive electrode (11); a negative electrode (12); and a nonaqueous electrolyte. At the negative electrode (12), lithium metal precipitates during charging, and the lithium metal is dissolved during discharging. A protective layer (40) is disposed on a surface of the negative electrode (12). The protective layer (40) contains a fluorinated polymer and a block copolymer. The block copolymer includes a first polymer portion having a monomer unit A repeating structure, and a second polymer portion having a monomer unit B repeating structure. The fluorinated polymer and the block copolymer are present in the protective layer (40) as separate molecules.
Resumen de: WO2025183052A1
This non-aqueous electrolyte secondary battery includes: a flat electrode body (60) in which a positive electrode (30) to which a positive electrode tab (22) is connected and a negative electrode (40) to which a negative electrode tab is connected are wound via a separator (70); and an exterior body (12). In the exterior body, a laminate sheet including an adhesive resin layer is folded back along a bottom portion, the peripheral edge portions of two sheet elements facing each other are joined, and each sheet element is provided with a housing portion (13) for housing the electrode body and an exterior body flat portion (15) for sealing the opening of the housing portion. When the outermost periphery of the positive electrode is divided into two, the exterior body flat part side and the bottom end side of the housing portion, the positive electrode tab (22) is attached to the exterior body flat portion side and is led out from the top portion of the exterior body. The negative electrode tab 24 is attached to an intermediate periphery between the innermost periphery and outermost periphery of the negative electrode and is led out from the top portion.
Resumen de: WO2025183020A1
This secondary battery comprises: a positive electrode; a negative electrode; a separator that is disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte solution. At the negative electrode, a metal that is a negative electrode active material is deposited during charging, and the metal is dissolved in the nonaqueous electrolyte solution during discharging. The separator comprises a sheet-shaped base material and a spacer that is disposed on the main surface of the base material. The spacer contains a resin. The degree of swelling of the spacer with respect to the nonaqueous electrolyte solution is 1.1 times to 2 times inclusive.
Resumen de: WO2025182565A1
This laminate includes a base material layer, a first adhesive layer, a metal foil layer, a second adhesive layer, and a sealant layer that are sequentially laminated. The second adhesive layer includes an acid-modified polyolefin-based adhesive. The elastic modulus obtained by force curve measurement of the second adhesive layer in a cross section of the laminate in an 80°C environment using a scanning probe microscope is 3 MPa-100 MPa inclusive.
Resumen de: WO2025182546A1
A secondary battery positive electrode 5 according to the present disclosure comprises a positive electrode current collector 5a and a positive electrode active material layer 5b supported by the positive electrode current collector 5a. The positive electrode active material layer 5b includes: active material particles; and solid particles containing boron and phosphorus. The solid particles may contain boron phosphate. The ratio of the mass of the solid particles to the mass of the active material particles is, for example, in the range of 0.1 to 4 mass%.
Resumen de: WO2025182622A1
A battery (10) is provided with: a positive electrode lead (20) having a joint part (75) joined to a positive electrode core body-exposing part (35) where a positive electrode core body (30) is exposed in a positive electrode (11); and a tape (70) that is attached closer to the tip-end of the positive electrode lead (29) than the joint part (75), and includes a core body-side covering part positioned between the positive electrode lead (29) and the positive electrode core body-exposing part (35). The positive electrode lead (20) has a protrusion (75) that protrudes from the tape (70) in the positive electrode width direction.
Resumen de: WO2025182621A1
This battery (10) comprises: an electrode body in which a long positive electrode (11) and a long negative electrode are wound with a separator therebetween; an outer can that houses the electrode body; and a positive electrode lead (20) that is joined to a positive electrode core exposed part (35) in which a positive electrode core (30) is exposed in the positive electrode (11). The positive electrode core (30) is provided with a through-hole (70) that includes a facing part (70a) that faces a tip part (20a) of the positive electrode lead (20) in the thickness direction thereof.
Resumen de: WO2025182545A1
A nonaqueous electrolyte solution according to the present disclosure comprises: a nonaqueous solvent; an electrolyte dissolved in the nonaqueous solvent; and an organic boronic acid. The concentration of the organic boronic acid in the nonaqueous electrolyte solution is 0.02 mass % or more and 0.4 mass % or less. The organic boronic acid may contain a cyclic, linear or branched alkyl group in which at least one hydrogen atom may be substituted with a fluorine atom.
Resumen de: WO2025183656A1
The invention relates to a material for a battery cathode. The material is represented by NaxMyAzDtO2, where M is at least one metal selected from the group containing titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn); A is at least one metal selected from the group containing titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn); D is at least one metal selected from the group containing titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn); with 0.85 < x < 1.1, 0.1 < y < 0.9, 0.1 < z < 0.9, 0.1 < t < 0.9, and the material having a BET surface area in the range of 2.5 to 3.5 mA2/g.
Resumen de: WO2025182604A1
A battery (10) comprises: a flat electrode body (13) in which a positive electrode and a negative electrode are wound with a separator therebetween; and a flat outer can (14) which accommodates the electrode body (13), the flat outer can having a bottomed cylindrical-shape. A first protruding part (31) protrudes in the minor-axis direction of the electrode body (13) and extends in the winding axis direction of the electrode body (13). The first protruding part is provided at both ends, in the major-axis direction of the electrode body (13), of at least one inner surface (14b) of a pair of main surface parts (14a) that are part of the outer can (14) and that face each other in the minor-axis direction of the electrode body (13).
Resumen de: WO2025182651A1
A cylindrical battery (10) comprises: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound via a separator (13); a bottomed cylindrical outer can (16) that accommodates the electrode body (14); a lower insulating plate (19) that is arranged between the electrode body (14) and the bottom portion (35) of the outer can (16) and has a through-hole (41); and a negative electrode lead (21) that has one end joined to the negative electrode (12) and the other end joined to the bottom portion (35). An opposing portion (61) of the negative electrode lead (21) that faces the bottom portion (35) is accommodated in the through-hole (41) when viewed from the axial direction.
Resumen de: WO2025182466A1
The present invention provides a battery deterioration determination support device which is small in size, low in power consumption, and capable of greatly shortening a measurement time. This method supports a deterioration determination by using an electronic circuit to acquire an internal characteristic of an electrical energy supply medium. The method includes: acquiring the internal characteristics of a battery in advance; selecting two or more frequencies required to determine that the battery is satisfactory or unsatisfactory; storing the selected frequencies; performing discharge control based on the selected frequencies; acquiring voltage data and current data by using voltage measurement means and current measurement means; calculating correction voltage data by performing correction processing on the voltage data; calculating resistance data from the correction voltage data and the current data; calculating at least a portion of Cole-Cole plot data from the resistance data; and performing fitting processing by using at least a portion of the Cole-Cole plot data as necessary.
Resumen de: WO2025182605A1
The present invention makes it possible to ascertain the charging rate of an electric vehicle in accordance with the actual situation. When a vehicle (10) is started, a voltage-estimated SOC value is obtained by estimating the charging rate using the voltage of a large-scale battery (12), and after traveling begins, a change in the charging rate is estimated on the basis of inputs and outputs of current to and from the large-scale battery (12) to obtain a current-integrated SOC calculated value that has changed from the voltage-estimated SOC value, the advisability of reacquisition is determined on the basis of at least one of a continuous traveling history, a charge/discharge history, and a temperature history, and the charging rate is estimated using the voltage of the large-scale battery (12) even if the vehicle (10) is in the P range and reacquisition is permitted, and if the inputs and outputs of current to and from the large-scale battery (12) are less than a first predetermined value.
Resumen de: WO2025183409A1
The present invention relates to a method for preparing a positive electrode active material, a positive electrode active material prepared using same, and a lithium secondary battery comprising same and, more specifically, to a method for preparing a positive electrode active material, the method comprising: forming a lithium nickel-based composite oxide; and coating the lithium nickel-based composite oxide. Forming the lithium nickel-based composite oxide comprises: forming a first aqueous solution comprising an aluminum compound and a basic compound; forming a mixture including the lithium nickel-based composite oxide and the first aqueous solution; adding a second aqueous solution including a cobalt compound to the mixture; and drying and heat-treating the mixture.
Resumen de: WO2025182451A1
Provided are a solid electrolyte (19) capable of reducing interface resistance, an ion conductor (10), a sheet (15), an electrode (12), a separator (25), and a power storage device (11). The solid electrolyte has a garnet-type crystal structure containing Li, La, Zr, and O. In X-ray photoelectron spectroscopy, a second intensity is greater than a first intensity, and a fourth intensity is less than a third intensity, where the first intensity is the area intensity of a first peak corresponding to a Li-O bond in an O1s spectrum detected via irradiation with monochromatized AlKα rays, the second intensity is the area intensity of a peak present at a position where the binding energy is greater than the binding energy of the first peak, the third intensity is the area intensity of a third peak corresponding to the Li-O bond in the O1s spectrum detected via irradiation with monochromatized CrKα rays, and the fourth intensity is the area intensity of a peak present at a position where the binding energy is greater than the binding energy of the third peak.
Resumen de: WO2025183423A1
Provided is a battery device comprising: a plurality of pack housings including a first pack housing and a second pack housing, each of which accommodates a cell assembly including a plurality of battery cells, and which are stacked in one direction; and an upper cover which covers the upper portion of the pack housing disposed at the uppermost end among the plurality of pack housings, wherein: each of the first pack housing and the second pack housing comprises: a lower frame in which the cell assembly is seated; and a plurality of side frames connected to the lower frame to protect the side surface of the cell assembly; at least one of the plurality of side frames comprises: a body part disposed to face the side surface of the cell assembly; and a first upper flange and a first lower flange disposed at both ends of the body part in the height direction; and the first lower flange of the first pack housing and the first upper flange of the second pack housing are coupled to each other with the lower frame of the first pack housing therebetween.
Resumen de: WO2025183415A1
The present invention relates to an apparatus for manufacturing an electrode assembly and a method for manufacturing an electrode assembly. According to one embodiment of the present invention, a method for manufacturing an electrode assembly may be provided, in which a lamination step of manufacturing unit cells through a lamination unit and a stacking step of manufacturing an electrode assembly by sequentially stacking the unit cells through stacking equipment are sequentially and continuously performed, wherein, a buffer input step of inputting the unit cells manufactured in the lamination step into a buffer magazine is performed in order to continue manufacturing the unit cells when the stacking equipment is stopped, or a buffer release step of providing the unit cells stored in the buffer magazine to the stacking equipment is performed in order to continue manufacturing the electrode assembly when the lamination unit is stopped.
Resumen de: WO2025183402A1
The present invention relates to a bipolar electrode comprising: a current collector including a polymer film and a conductive layer added to at least a portion of the outer surface and inner surface of the polymer film; a positive electrode formed on a first surface of the current collector; and a negative electrode formed on a second surface of the current collector, wherein, by heat-fusing the current collector composed of the polymer film to implement a sealed form, the movement of electrolyte between the electrodes may be prevented.
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: EP4610231A1
The present invention relates to a transition metal hydroxide capable of providing a positive electrode active material with excellent capacity characteristics, a method for preparing same, and a method for preparing a positive electrode active material by using same. Provided are a transition metal hydroxide, a method for preparing same, and a method for preparing a positive electrode active material by using same, the transition metal hydroxide comprising polycrystalline particles composed of spherical secondary particles in which acicular primary particles are agglomerated, having a specific surface area measured by the nitrogen adsorption BET method of 23 m<sup>2</sup>/g to 43 m<sup>2</sup>/g, having a particle size distribution curve diffusion index defined by equation 1 of less than 0.7, and being represented by chemical formula 1.
Resumen de: EP4611069A1
The present invention relates to a positive electrode active material having improved resistance and lifetime characteristics, a method for preparing the same, and a positive electrode and a lithium secondary battery which include the same, and provides a positive electrode active material represented by Formula 1 and formed of polycrystal grains composed of secondary particles in which primary particles are aggregated, wherein a surface portion porosity A defined by Equation 1 is 1% to 30%, a method for preparing the same, and a positive electrode and a lithium secondary battery which include the same.
Resumen de: EP4611088A1
Disclosed is an electrode assembly for secondary batteries, the electrode assembly including a first electrode plate having side A and side B on which a non-coated portion is formed at each of a first leading edge and a first trailing edge of both side-A and side-B and a positive electrode tab, a second electrode plate having side A and side B on which a non-coated portion is formed at each of a first leading edge and a first trailing edge of both side-A and side-B and a negative electrode tab, a separator interposed between the first electrode plate and the second electrode plate, a tab cover tape attached to each of the positive electrode tab and the negative electrode tab, a first insulating tape attached to the non-coated portion, and a second insulating tape attached to the non-coated portion.
Nº publicación: EP4610078A1 03/09/2025
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD [HK]
Contemporary Amperex Technology (Hong Kong) Limited
Resumen de: EP4610078A1
A battery (1) is disclosed, including a battery body (10). The battery body includes a battery cell and a housing (12). The housing (12) defines a recess (13) that penetrates through the housing from one end to another end along a first direction (F1). The battery (1) is disposed at a bottom of a vehicle (1000). A bottom longitudinal beam (200) of the vehicle runs through and fits in the recess (13) along the first direction (F1). The housing (12) is provided with a plurality of first mounting structures (21). The first mounting structures (21) are configured to detachably mount the battery body (10) into the vehicle (1000). At least two of the plurality of first mounting structures (21) are spaced apart along a second direction (F2) and located on two sides outside the recess (13). The first direction (F1) intersects the second direction (F2). This application further discloses a bracket (4) matching the battery, and a vehicle (1000) containing the battery (1) or the bracket (4). The battery and the bracket in use can fully utilize space and increase an energy density. The battery is evenly stressed in the second direction and is stably mounted.
BOPI
Sede Electrónica
