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1102
resultados
Última actualización
29/08/2026 [07:33:00]
Resultados 975 a 1000 de 1102
Resumen de: EP4792944A1
0001 According to one embodiment of the present disclosure, provided is a device for cleaning an electrode rolling roll, comprising: a cleaning member provided so as to allow a surface of the electrode rolling roll to come into contact with a cleaning cloth, a spray nozzle that sprays a cleaning liquid onto the cleaning cloth, a control unit that adjusts the sprayed amount of the cleaning liquid, and a monitoring unit that monitors the sprayed amount of the cleaning liquid, wherein the cleaning liquid is a distilled water, and wherein the control unit adjusts the amount of the cleaning liquid sprayed once by the spray nozzle so as to be within a range of 0.05 ml to 0.2 ml.
Resumen de: EP4794016A1
0001 An anode configured to decrease the rate of area increase in planar direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 50° or more and 90° or less, is more than 35%.
Resumen de: EP4794009A1
0001 A main object of the present disclosure is to provide a cathode layer for a lithium ion battery, with which the resistance increase of a battery due to charge and discharge can be suppressed. The present disclosure achieves the object by providing a cathode layer to be used in a lithium ion battery, the cathode layer including: single crystalline active material configured by a crystalline primary particle containing Li, TM, which is a transition metal, and O as a cathode active material, wherein in a cross-section observation image of the cathode layer by a scanning electron microscope, the single crystalline active material includes a long side and a short side, an angle formed by the long side and the short side is 60° or more and 120° or less, and an aspect ratio which is a ratio of length of the long side to the short side is 1.2 or more, the long side of the single crystalline active material extends along (003) surface, and a ratio N/N of a number N of the single crystalline active material of which inclination of the long side direction to in-plane direction of the cathode layer is 0° or more and 30° or less, with respect to a number N of the single crystalline active material is 50% or more.
Resumen de: EP4792963A1
0001 An apparatus for cutting a secondary battery can includes a support fixedly supporting a molded battery can product having a removal target portion, a cutter having an incision blade inserted into the molded battery can product, the cutter being configured to incise a portion of the removal target portion, and a cutting blade configured to continuously cut from the portion of the removal target portion incised by the incision blade, and a cutter driver that moves the cutter and causes the incision blade to move along a linear path perpendicular to an inner wall of the molded battery can product, resulting in a cutting start incision portion on the inner wall, the cutter driver causing the cutting blade to cut from the cutting start incision portion.
Resumen de: EP4794107A1
An electrode assembly may include a first electrode having a first electrode tab, a second electrode disposed on the first electrode and having a second electrode tab, a first pass electrode disposed on the second electrode and having a first pass electrode tab electrically connected to the first electrode tab, and a separator disposed between the first electrode and the second electrode or between the second electrode and the first pass electrode.
Resumen de: EP4794010A1
A cathode active material including: an active material 1 comprising secondary particles; and an active material 2 comprising single particles, wherein the active material 1 and the active material 2 have a bimodal particle diameter distribution, respectively, the active material 1 has an average particle diameter (D50) of 9 µm to 17 µm, and the active material 2 has an average particle diameter (D50) of 2.5 µm to 4 µm, is disclosed.In some implementations, a cathode active material having high packing density may be provided.
Resumen de: EP4794060A1
Embodiments of this application relate to the field of energy storage technologies, and a battery pack and an energy storage device are provided. A heating film is disposed in the battery pack, to increase a temperature of an operating environment of a cell in the battery pack. Wiring density of heating wires at different positions in the heating film is controlled, to control heating efficiency at the different positions in the heating film, and selectively heat cells at the different positions to different extents, so that different cells of the battery pack can be heated to a preset temperature range. In this way, temperatures of the different cells of the battery pack may be neither excessively low to result in low charging/discharging efficiency, and nor excessively high to affect a service life or safety performance of the cells. Therefore, a service life and safety performance of the battery pack are effectively improved while charging/discharging efficiency of the battery pack is ensured, thereby improving a service life and safety of the energy storage device.
Resumen de: EP4794015A1
An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and wherein, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 0° or more and less than 45°, is more than 52%.
Resumen de: EP4794014A1
0001 An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a first carbon material having an aspect ratio of more than 1, and a second carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; the second carbon material is second carbon material particles; and, of the carbon composite material particles contained in the anode layer, a percentage of those that an angle θ formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 50° or more and 90° or less, is 62% or more.
Resumen de: EP4794022A1
0001 A positive electrode active material includes a secondary particle (2), wherein: the secondary particle (2) includes a first particle group and a second particle group; each of the first particle group and the second particle group is composed of primary particles (1); the second particle group has a larger average particle diameter than the first particle group; the first particle group and the second particle group are dispersed in each other in the secondary particle (2); the primary particles (1) belonging to the first particle group contain a first olivine-type compound; the primary particles (1) belonging to the second particle group contain a second olivine-type compound; and the second olivine-type compound has a lower Mn compositional ratio than the first olivine-type compound.
Resumen de: EP4792971A1
0001 The present invention relates to a lead-tab laser welding method for joining a lead portion and a tab portion, and the lead-tab laser welding method may comprise a seating step of disposing the lead portion and the tab portion of a secondary battery so as to overlap each other, and a laser welding step in which a welding unit forms a plurality of beads in an overlap region of the lead portion and the tab portion, wherein in the laser welding step, with respect to first, second, and third positions sequentially located along a first direction in the overlap region of the lead portion and the tab portion, the beads are formed in the order of the first position, the third position, and the second position.
Resumen de: EP4793174A1
An aircraft has an energy storage system comprising a first battery 6a comprising first and second battery modules 10, 11. A venting system 7 is provided comprising a first battery module exhaust 18, a second battery module exhaust 19 and a first battery manifold 20 arranged to connect the first and second battery module exhausts to a first flow path extending to an exhaust port 8 of the aircraft. The first battery manifold 20 includes a first valve 28 comprising a first flap 29 having a first position in which fluid flow from one of the first and second battery module exhausts is restricted; a second position in which fluid flow from the other of the first and second battery module exhausts is restricted; and a neutral position in which fluid can flow from both first and second battery module exhausts to the first flow path. The first valve 28 is biassed towards the neutral position. The venting system of the present invention is more lightweight than was hitherto achievable, protects other modules and components of the energy storage system from the heat of gas emissions and reduces pressure losses, so that the emitted gas is more likely to exit the aircraft, typically via a burst disc
Resumen de: EP4793008A1
0001 A notching mold (10) comprises a lower plate(110); an upper plate (120) disposed above the lower plate (110); a die plate (410) disposed on the lower plate (120) and supporting a die (420); the die (420); a punch plate (510) between the upper plate (120) and the die plate (410); a punch pusher (530) between the upper plate (120) and the die plate (410); a punch (520) below the punch plate (510) and the punch pusher (530) and above the die plate (410); and a guide post (700) connected to the die plate (410) and the punch (520), wherein the die (420) comprises an opening (OP), wherein the punch (520) is coupled with the punch plate (510), wherein the punch (520) comprises a first region (1A) configured to be inserted into the opening (OP) and a second region (2A) disposed outside the opening (OP), and wherein the guide post (700) is configured to guide movement of the punch (520).
Resumen de: EP4793035A1
0001 A battery protection plate (100), a battery pack, and a vehicle are provided, which relate to the technical field of battery packs. The battery protection plate (100) includes a base layer (1) and an energy-absorbing layer (2). The energy-absorbing layer (2) is arranged on a side of the base layer (1). A tensile strength and an elastic modulus of the base layer (1) are greater than a tensile strength and an elastic modulus of the energy-absorbing layer (2), and an elongation at break of the energy-absorbing layer (2) is greater than an elongation at break of the base layer (1).
Resumen de: EP4794095A1
0001 A battery case for a secondary battery having a gas discharge valve provided on one flat surface, wherein the gas discharge valve comprises a first thin portion having a thickness smaller than that of the flat surface and a second thin portion formed on a surface of the first thin portion, and having a thickness even smaller than that of the first thin portion, and a residual stress at the first thin portion is greater than that at the second thin portion.
Resumen de: WO2025078694A1
The invention relates to a measuring device (10) for determining at least one property of a planar element (31) of the battery cell-producing industry, wherein the measuring device (10) is arranged in a measuring relationship to a surface (32) of a planar element (31) placed at the top of an element stack (30) and is configured to determine image data of the surface (32), comprising a data processing device (50) which is configured to process the determined image data and herefrom to determine at least one property of the planar element (31). The measuring device (10) has at least one laser measuring device (51) which is configured to measure the distance to the surface (32) of the planar element (31) by means of a laser beam (57) directed onto the planar element, wherein the data processing device (50) is configured to link the determined image data and the distance data from the at least one laser measuring device (51).
Resumen de: WO2025078476A1
The present invention relates to a method for reducing a Na-loss in preparing a positive electrode active material powder comprising particles having a substantially octahedral shape, comprising: mixing a Li source, a precursor comprising transition metals and a sintering flux to obtain a mixture; and heating the mixture to obtain a heated material, wherein the transition metals comprise Ni, optionally Co, and optionally Mn, wherein the sintering flux is Na2CO3, and wherein the Na-loss is a difference between a first Na content in the mixture and a second Na content in the heated material, the first and second Na contents being measured via ICP-OES and being relative to a total amount of the transition metals.
Resumen de: EP4794025A1
The present invention is a negative electrode active material containing negative electrode active material particles, in which the negative electrode active material particles contain a porous carbon structure, a low-valent nano silicon oxide in an amorphous state is dispersed within the porous carbon structure, the low-valent nano silicon oxide includes states represented by SiOx where "x" is less than 1.0, and the low-valent nano silicon oxide has a particle size of 50 nm or less on average, the particle size being determined by image processing of a cross-sectional TEM image. This provides the negative electrode active material capable of increasing a capacity thereof while maintaining battery characteristics.
Resumen de: EP4794094A1
0001 This application provides a battery cell, which relates to the technical field of battery cells. The battery cell includes an electrode assembly and a housing, wherein the electrode assembly is arranged in the housing, and an explosion-proof structure is provided on the housing; a valve opening area S of the explosion-proof structure, a valve opening pressure P of the explosion-proof structure, an electrolyte injection amount m of the battery cell, and a capacity C of the battery cell satisfy 2.4 ≤ S×P-C/(m×1000) ≤ 5.4. This application appropriately sets the valve opening area of the explosion-proof structure, valve opening pressure of the of the explosion-proof structure, electrolyte injection amount of the battery cell, and the capacity of the battery cell, so that when the battery cell fails and causes thermal runaway, the explosion-proof structure can work in time, and different parameters, for example the capacity of the battery cell, can be set according to actual conditions, so as to meet the explosion-proof requirements of large-capacity batteries.
Resumen de: EP4794087A1
0001 Provided is a battery pack including a mica plate that is resistant to damage and is lightweight. The battery pack of the present invention includes a module with a plurality of battery cells; a case containing the module; and a mica plate disposed between the module and the case and having a first main face and a second main face opposite to the first main face, the battery pack further including a fixing member to fix the mica plate, the mica plate having a first fixing member hole penetrating from the first main face to the second main face, at least one of the module or the case being provided with a connecting member having a second fixing member hole, the fixing member including a head and a body extending from the head, the head of the fixing member being on the first main face of the mica plate, the body of the fixing member passing through the first fixing member hole into the second fixing member hole, thereby fixing the mica plate, the head, in a planar perspective view of the mica plate, covering at least a part of an outline of the first fixing member hole and overlapping the mica plate, an overlapping area, denoted as area S 1, between the head and the mica plate being not less than 5.8 × 10<-6> times an area S2 of the mica plate.
Resumen de: EP4794018A1
A slurry containing carbon black, a dispersant, and a dispersion medium, wherein, in a volume-based particle size distribution of the carbon black, a median diameter (D50) is at least 0.5 µm and at most 0.8 µm, a difference (D90 - D10) between a cumulative 90% diameter (D90) and a cumulative 10% diameter (D10) is less than 2 µm, and a total amount of particles having a particle diameter larger than 5 µm is less than 1%, and a ratio (D50'/D50) of a median diameter (D50') of the carbon black when the slurry has been placed at rest for 4 weeks to D50 is less than 1.3.
Resumen de: EP4793199A1
An energy storage device, an energy storage system and a charging network. The energy storage device (100) comprises at least one energy compartment (10) and at least one control compartment (20), wherein the energy compartment (10) comprises a first compartment body (13) and an energy unit (12), the energy unit (12) being accommodated in the first compartment body (13); the dimension of the energy compartment (10) in a height direction thereof is less than the dimension of a standard container in a height direction thereof; the control compartment (20) is disposed outside the energy compartment (10); and the control compartment (20) comprises a second compartment body (21) and a control module (22), the control module (22) being accommodated in the second compartment body (21), and the control module (22) being used for performing electrical control on the energy unit (12) in the energy compartment (10).
Resumen de: EP4794024A1
0001 The present invention is a negative electrode active material containing negative electrode active material particles, in which the negative electrode active material particles contain a porous carbon structure, silicon and silicon oxide are dispersed in an interior of the porous carbon structure, a low-valent nano silicon oxide in an amorphous state is dispersed at least in a surface layer portion of the interior of the porous carbon structure, the low-valent nano silicon oxide is SiOx, where "x" is less than 1.0, and nano silicon having a crystalline structure is dispersed in the interior of the porous carbon structure, at least in a deep layer portion that is deeper than the low-valent nano silicon oxide. This provides the negative electrode active material capable of increasing capacity thereof while maintaining battery characteristics.
Resumen de: EP4794029A1
0001 A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. In a cross section of the first active material layer, the polymer material forms a plurality of island-shaped regions and is dispersed therein. The aspect ratio: DL/DW is 1.5 or less, where DL represents a length of a major axis of particles of the polymer material, the major axis defining a maximum particle diameter thereof, and DW represents a length of a minor axis perpendicular to the major axis at a midpoint thereof.
Nº publicación: EP4791939A1 19/08/2026
Solicitante:
DOW GLOBAL TECHNOLOGIES LLC [US]
DOW SILICONES CORP [US]
Dow Global Technologies LLC
Dow Silicones Corporation
Resumen de: WO2025076807A1
A cured fabric that is useful in batteries can be made by impregnating a PET fabric with a binder emulsion that contains a self-crosslinking acrylic polymer binder and an anionic surfactant, which contains (1) a lipophilic moiety and (2) an anionic hydrophilic moiety that is linked to the lipophilic moiety by an oxygenated organic moiety. The combination of the binder and anionic surfactant provides fast wetting of the fabric. The impregnated fabric is cured by heating to crosslink the acrylic polymer. The resulting cured fabric has high tensile strength and good wetting ability with acid solutions used in batteries.
BOPI
Sede Electrónica
