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1603
resultados
Última actualización
09/11/2025 [07:15:00]
Resultados 575 a 600 de 1603
Resumen de: EP4645582A1
Some embodiments of this application provide a cylindrical battery and an electronic device. The cylindrical battery includes a jelly-roll electrode assembly. The electrode assembly includes a positive electrode plate. The positive electrode plate includes a positive current collector, a positive active material layer, and an insulation layer. Both the positive active material layer and the insulation layer are disposed on at least one side of the positive current collector. The positive current collector includes a first region corresponding to the positive active material layer, a second region corresponding to the insulation layer, and a third region covered by neither the positive active material layer nor the insulation layer. The second region is located between the first region and the third region in a width direction of the positive current collector. The insulation layer includes a first part possessing a first width W1 and a second part possessing a second width W2, satisfying: W1 + 2 mm ≤ W2 ≤ W1 + 10 mm. The second part is located outside the electrode assembly. The insulation layer of this application can cover an R-corner of the electrode assembly to prevent contact between the electrode assembly and a housing.
Resumen de: EP4645577A1
An electrochemical device includes a housing, an electrode assembly, and a first conductive plate. The electrode assembly includes a first electrode plate. The first electrode plate includes a first current collector, a first conductive material layer provided with a first opening, and a second conductive material layer provided with a second opening. The first current collector includes a first surface and a second surface. The first surface includes a first region. The second surface includes a second region. When viewed from the first direction, the first region overlaps with the second region, and the first conductive plate is connected to the first region or the second region. The first opening includes first to third opening edges. The second opening includes fourth to sixth opening edges. A distance between the first opening edge and the fourth opening edge is a first distance. A distance between the second opening edge and the fifth opening edge is a second distance. A distance between the third opening edge and the sixth opening edge is a third distance. the electrochemical device satisfies at least one of the following conditions: 0.2 mm≤first distance; 2 mm≤second distance; or 0.2 mm≤third distance, so as to improve the reliability and extend the service life. An electronic device is further provided.
Resumen de: EP4644593A1
A glass fiber composite material of the present invention comprises: about 100 parts by weight of glass fibers; about 35 to about 72 parts by weight of polypropylene resin; about 12 to about 35 parts by weight of piperazine pyrophosphate; about 1 to about 20 parts by weight of a phosphagen compound; and about 1 to about 20 parts by weight of zeolite. The glass fiber composite material is excellent in lightweight properties, flame retardancy, impact resistance, and rigidity.
Resumen de: EP4645502A1
The present invention relates to an electrolyte additive and an electrolyte and secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery that is capable of suppressing side reactions inside the battery, improving charging efficiency and output due to low charge resistance, and improving lifespan and high-temperature capacity retention.
Resumen de: EP4645474A1
An object of the present invention to provide a composition for nonaqueous electrolyte battery electrodes capable of achieving both good coatability of the composition and the suppression of expansion of electrodes obtained from the composition and an additive for nonaqueous electrolyte battery electrodes. The present invention relates to a composition for nonaqueous electrolyte battery electrodes comprising a binder; and an organic fiber, wherein the organic fiber has a specific gravity of 1.00 or more and a fiber length of 0.1 mm or more and 10 mm or less.
Resumen de: EP4645574A1
The present invention includes: a plurality of power storage devices (10); a holder (28) that covers one end of each of the plurality of power storage devices (10) and that has an opening (20) formed in a first surface thereof, for exposing a terminal of the power storage device; a current collector plate (16) that is disposed on the side of the first surface of the holder (28), and one end of which is connected to the terminal via the opening (20); and a bus bar (22) that is connected to the other end of the current collector plate (28). The bus bar (22) has, in an area facing the holder (28), a notch formed by removing a part of the bus bar or a notch portion formed of a through-hole.
Resumen de: EP4645567A1
Provided is a separator for a power storage device, the separator comprising a polyolefin microporous film that has a first principal surface and a second principal surface. The water contact angle of the first principal surface is 43°-118°, and when the absorbance of the first principal surface from 600 cm<sup>-1</sup> to 4000 cm<sup>-1</sup> is measured by ATR-IR measurement, the ratio of the absorption peak height at 1715 cm<sup>-1</sup> and the absorption peak height at 1472 cm<sup>-1</sup> is 0.0020-0.0280. The porosity of the polyolefin microporous film is 30%-65%.
Resumen de: CN120391012A
The invention relates to a module, in particular for an electric vehicle, comprising: a holder (1), preferably in the shape of a rectangular parallelepiped, having two substantially planar opposite sides (1a, 1b), one of which, referred to as the fastening side (1a), forms the fastening side; a plurality of electrochemical cells (2) each extending between a first end (2a) and a second end (2b) and each fastened by its first end (2a) to a fastening side (1a) of the holder (1), characterized in that the fastening side comprises a tapped cavity (10a) and the first end of each cell comprises an external thread (20a), the external thread (20a) being provided with an external thread (20b), and the external thread (20b) being provided with an external thread (20b). The threaded first end of each battery cell is screwed into one of the tapping cavities so that each battery cell is fastened in the fastening side by screwing the threaded first end of the battery cell into one of the tapping cavities. The invention also relates to a battery comprising such a module or a plurality of such modules.
Resumen de: CN120500781A
A system for determining a temperature value of a battery cell is described. The system includes a terminal post directly coupleable to a battery cell. The post has a post temperature corresponding to a temperature associated with the battery cell. The system also includes a thermally conductive pad coupled to the terminal post and a sensor. A sensor is physically coupled to the thermally conductive pad and is configured to measure a temperature associated with the battery cell via the thermally conductive pad and the post. The system also includes a battery management system (BMS) including processing circuitry in communication with the sensor and configured to determine a temperature value of the battery cell based on the measured temperature associated with the battery cell.
Resumen de: CN120435794A
A second cover coupleable to a first cover is described. The second cover includes a housing including a first cover space and a second cover space. The first cover space is a common space arranged to receive gas from the battery and is physically separated from the second cover space and the gas from the battery. The second cover also includes at least one exhaust port and at least one valve located in the first cover space. The at least one valve has an inlet side and an outlet side. The inlet side is in fluid communication with the first cover space. The outlet side is in fluid communication with the at least one exhaust port. The at least one valve is arranged to open and release gas to the at least one exhaust port when the gas pressure exceeds a predetermined threshold.
Resumen de: CN120419045A
The present disclosure describes a lead assembly for a battery. The battery includes a plurality of terminals associated with a plurality of battery cells. The lead assembly includes a plurality of leads, and each of the leads may be electrically coupled to one of the plurality of posts. The lead assembly also includes a lead assembly layer that may be physically coupled to the battery. The lead assembly layer has a first surface and a second surface opposite the first surface. At least a portion of each of the plurality of leads is located between the first surface and the second surface of the lead assembly layer or on the first surface of the lead assembly layer.
Resumen de: CN120500766A
A lead connection for coupling a first end of a lead (50) to a terminal post (18) and a bushing (22) of a battery is described. The lead connection includes a first weld seam (40, 42) including a bushing and a post welded to the bushing. The lead connection also includes a second weld (70, 72). The second weld includes a first weld and a first end of the lead. At least a portion of the first weld is distributed around and over the first end of the lead to electrically couple the first end of the lead to the bushing and the post.
Resumen de: EP4645646A1
A disclosed charge control method is a charge control method for a nonaqueous electrolyte secondary battery. The secondary battery includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The negative electrode is a negative electrode in which a lithium metal deposits on the negative electrode during charging and the lithium metal dissolves into the nonaqueous electrolyte during discharging. The secondary battery includes a spacer for forming a space between the positive electrode and the negative electrode. The charge control method includes: a normal charging step of charging the secondary battery based on a first charging profile; a determination step of determining whether predetermined data regarding the secondary battery has reached a predetermined value; and a recovery charging step of, when it is determined that the predetermined data has reached the predetermined value, charging the secondary battery based on a second charging profile as subsequent charging. An average charge current value in the second charging profile is smaller than an average charge current value in the first charging profile.
Resumen de: EP4645542A1
A resin battery module according to the present invention includes: a plurality of pouch type or prismatic type battery cells including a battery cell terminal; a circuit board; a bus bar that is electrically connected to the battery cell terminal of each of the plurality of battery cells and the circuit board; a fire-resistant plate that is disposed between at least one set of adjacent battery cells among a plurality of battery cells arranged in one direction; a pair of end plates that are provided on both end sides of the plurality of battery cells arranged in one direction, respectively; and a pair of side plates that are coupled with the pair of end plates to form a surrounding structure accommodating the plurality of battery cells, in which at least one of the fire-resistant plate and the pair of end plates is formed of a cured product of a thermosetting resin composition.
Resumen de: EP4645541A1
According to the present invention, there is provided a protective plate for battery cells that is disposed on at least a side surface of a battery cell in a battery module including a plurality of battery cells, in which the protective plate is formed of a cured product of a thermosetting resin composition, the thermosetting resin composition includes a thermosetting resin including at least one of a phenol resin, unsaturated polyester, a diallylphthalate resin, and an epoxy resin, and an inorganic fiber filler, and in the cured product of the thermosetting resin composition, a thermal conductivity is 20 W/m ·K or less and a retention rate of flexural modulus measured at in the following high-temperature exposure test is 75% or more and 100% or less.
Resumen de: EP4645470A1
Provided are composite particles that can improve flexibility of an electrode and can cause a secondary battery to display excellent battery characteristics. The composite particles are used in dry forming of an electrode for a secondary battery and contain an electrode active material and a binder. The composite particles have an area circularity of not less than 0.50 and not more than 0.93 and have a porosity of not less than 65% and not more than 80%.
Resumen de: EP4645473A1
The binder composition for a non-aqueous secondary battery negative electrode contains a polymer and an aqueous medium, the polymer having a first structural unit derived from a monomer (a1), the monomer (a1) being a nonionic compound having only one ethylenically unsaturated bond, and satisfies the following condition (1): In a test solution obtained by diluting the binder composition with water and having a nonvolatile content of 0.4 mass%, the concentration of sodium ions detected using an inductively coupled plasma optical emission analyzer is 3.0 mg/L or less.
Resumen de: EP4644317A1
The disclosure provides: carbon nanotubes capable of forming an electrode film having good conductivity while further enhancing safety, and a method for purifying the carbon nanotubes; and a carbon nanotube dispersion, a binder composition, an electrode composition, and a secondary cell containing the carbon nanotubes.
Resumen de: EP4645408A1
A positive electrode 10 according to the present disclosure includes a positive electrode current collector 11 and a positive electrode active material layer 12 supported on the positive electrode current collector 11. The positive electrode active material layer 12 includes a positive electrode active material and a phosphorus compound. The phosphorus compound includes a P=O bond. The positive electrode active material layer 12 is divided into a first region 12a and a second region 12b in a plane direction, a mass ratio P1/A1 of the phosphorus compound to the positive electrode active material in the first region 12a is 0.2 mass% or more and 8 mass% or less, and a mass ratio P2/A2 of the phosphorus compound to the positive electrode active material in the second region 12b is less than 0.2 mass%.
Resumen de: MX2025011866A
A current collector according to the present invention comprises: a first coupling unit coupled to a first terminal; a second coupling unit coupled to an electrode assembly; a plurality of leg units connecting the first coupling unit and the second coupling unit; and a plurality of fusing induction units provided for each of the plurality of leg units and covering at least a partial area of the leg unit.
Resumen de: MX2025012366A
A battery according to an embodiment of the present invention may comprise: an electrode assembly having a wound structure around the winding center hole thereof; a battery housing configured to accommodate the electrode assembly through an opening provided at one side thereof; a battery cover configured to cover the opening of the battery housing and provided with a venting part which is configured to be broken when the internal pressure of the battery housing exceeds a reference venting pressure; and a core support inserted into the winding center hole of the electrode assembly to increase the rigidity of the core part of the electrode assembly, and configured to guide the discharge direction of gas generated inside the electrode assembly toward the venting part.
Resumen de: MX2025011585A
A battery pack is disclosed. The battery pack according to an embodiment of the present invention comprises: a case having an open upper surface and providing an inner space; a plurality of battery cells accommodated in the inner space and extending in the left-right direction; partition walls dividing the inner space; spacers provided at the upper ends of the partition walls; and a pack cover covering the upper surface of the case and coupled to the spacers.
Resumen de: MX2025011581A
The battery cell according to an embodiment of the present invention may comprise: an electrode assembly: a battery housing having an opening part provided on one side thereof and accommodating the electrode assembly through the opening part; a battery terminal configured to be electrically connected to the electrode assembly through a closing part provided on the opposite side of the opening part of the battery housing; and a current collector including a first coupling part configured to be electrically coupled to the electrode assembly, a second coupling part configured to be electrically coupled to the battery terminal, and a bridge part configured to electrically connect the first coupling part and the second coupling part, wherein the cross-sectional area of the bridge part is 5% or less of the total cross-sectional area of the current collector.
Resumen de: MX2025011857A
The conveying device according to an embodiment of the present invention comprises: a first disk having a disk shape and provided so as to be rotatable about the central axis of the disk; a second disk provided above the first disk and having a disk shape; and a gasket interposed between the first disk and the second disk.
Nº publicación: MX2025011425A 03/11/2025
Solicitante:
BYD COMPANY LTD [CN]
BYD COMPANY LIMITED
Resumen de: MX2025011425A
A negative electrode sheet, a battery and an electric device. The negative electrode sheet comprises a current collector and a negative electrode active material layer that coats at least one surface of the current collector, wherein the negative electrode active material layer comprises a negative electrode active material, a silicon dioxide aerogel and a binder; the negative electrode active material is filled with the silicon dioxide aerogel; and the silicon dioxide aerogel accounts for 0.1%-5% of the total mass of the negative electrode active material layer.
BOPI
Sede Electrónica
