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1482
resultados
Última actualización
11/09/2025 [07:18:00]
Resultados 650 a 675 de 1482
Resumen de: EP4611058A2
The present invention relates to a current collector having improved adhesive strength, and is a structure comprising a metal foil and a primer coating layer formed on at least one surface of the metal foil, wherein the surface of the primer coating layer is a flat surface that is rolled so as to be evenly flat.
Resumen de: EP4611097A1
Provided are a negative electrode sheet, a battery core, and an electric device. The electric device includes the battery core. The battery core includes the negative electrode sheet. The negative electrode sheet includes a first region and a second region. The second region surrounds the first region. A surface density of an active material in at least part of the second region is less than a surface density of an active material in the first region. The present disclosure reduces a probability of lithium precipitation at an edge of an electrode sheet.
Resumen de: EP4611168A1
A battery module including a battery cell stack in which a plurality of battery cells are stacked; a module case configured to accommodate the battery cell stack; a busbar frame disposed on a side of the battery cell stack; an insulating cover disposed outside the busbar frame; and a pressure pad disposed inside the insulating cover to press the busbar frame is provided.
Resumen de: WO2025042265A1
A battery cell assembly, including: a cell block including a plurality of battery cells; and a side frame disposed on one side surface of the cell block, wherein the side frame includes a side wall portion and a flange portion disposed on the side wall portion on a side opposite the cell block and configured to be fastened to an external support structure, and wherein the side wall portion includes a hollow space formed throughout an inside thereof.
Resumen de: EP4611108A1
An electrode assembly includes a jelly-roll structure in which a negative electrode, a separator, and a positive electrode are wound around a core. The negative electrode includes an active material portion in which a negative electrode active material is laminated on one or both sides of a negative electrode current collector, and a negative electrode non-coated portion in which the negative electrode active material is not laminated. The negative electrode further includes a protective tape covering at least a part of the negative electrode non-coated portion adjacent to the core. The protective tape has a cross-sectional area of 0.3 mm<sup>2</sup> to 0.47 mm<sup>2</sup> in a longitudinal direction of the negative electrode. Also provided is a secondary battery including such an electrode assembly.
Resumen de: EP4611129A1
A box beam, a battery-pack box, and a battery pack are provided in the present application, to improve problems that the manufacturing period of the box beam is long due to the whole plate structure of the box beam. The box beam includes a first body and a second body. The second body is provided separately from the first body. At least one of a section of the first body and a section of the second body is provided with an opening. The first body and the second body are connected on two sides of the opening, and close the opening.
Resumen de: EP4611136A1
A tab assembly (100) includes a tab (1) and a tab adhesive (2). Along a thickness direction (X) of the tab (1), the tab (1) includes a first surface (11) and a second surface (12) opposite to each other. Both the first surface (11) and the second surface (12) are provided with the tab adhesive (2). The tab adhesive (2) provided on the first surface (11) and the tab adhesive (2) provided on the second surface (12) jointly wrap the tab (1). Along a length direction (Y) of the tab (1), the tab (1) includes a first end (1a) and a second end (1b) opposite to each other. The tab adhesive (2) includes a first layer (21) and a second layer (22). The first layer (21) and the second layer (22) are stacked along a direction from the first end (1a) to the second end (1b). The first layer (21) includes a first adhesive body (211). The second layer (22) includes at least one layer of a second adhesive body (221). A material of the second adhesive body (221) comprises one or more selected from the group consisting of polyethylene, polypropylene and polyethylene terephthalate. A thickness of the tab (1) is Ti, and a thickness of the second adhesive body (221) is T2, Ti ≥ 80 µm, and T2 ≤ 70 µm.
Resumen de: EP4611160A1
A battery module including a battery cell stack in which multiple battery cells are stacked, a module case configured to accommodate the battery cell stack, a terminal busbar disposed on one side of the battery cell stack, an insulating cover disposed on one side of the module case, one end portion of the terminal busbar being positioned on the insulating cover, and a fixing member having a fixing hole configured to fix the one end portion of the terminal busbar, where the fixing member being disposed below the one end portion of the terminal busbar in the insulating cover is provided.
Resumen de: EP4610074A1
A heat exchange system (1) has an inlet branch (5) adapted to receive a heat exchange liquid, supplied by a first pump (8) and cooled by a chiller (9), and an outlet branch (6) which circulates the heat exchange liquid to the chiller (9); the system has a cooling line (26), which extends from the inlet branch (5) to the outlet branch (6) along a battery (2) of a vehicle (3) for cooling this battery (2), and a branch line (30), which extends along a thermal reservoir (34) containing a material with characteristics such as to store heat/cold and is configured in such a way as to exchange heat between said material and the heat exchange liquid; the system also has at least one valve (25,) which is configured and controllable to achieve a first operating condition, in which the liquid flows exclusively in the cooling line (26), and a second operating condition, in which the liquid flows in the branch line (30) and, in series, in the cooling line (26).
Resumen de: EP4609932A1
Methods of refining metals and methods of manufacturing positive electrode active materials are disclosed. The methods of refining metals comprise preparing an acid solution that includes an impurity and metal, adding a filtration aid to the acid solution to make a precipitation reaction solution, and filtering the precipitation reaction solution to separate a liquid including the metal and a solid including the impurity and the filtration aid. The filtration aid includes one or more of silicon dioxide (SiO<sub>2</sub>), aluminium oxide (Al<sub>2</sub>O<sub>3</sub>), calcium hydroxide (Ca(OH)<sub>2</sub>).
Resumen de: GB2638912A
A system and method for using unrecoverable energy in a battery cell is disclosed in this application. A system includes a battery cell, the battery cell includes an excess amount of cathode or anode that can function as half cells in an emergency. A user, such as a pilot, can command a controller to utilize unrecoverable energy based on battery data presented to the user.
Resumen de: EP4611134A1
The present disclosure relates to a battery cell including a case including an opening formed in one surface and an opposing surface facing the opening, and accommodating an electrode assembly through the opening, a cap plate coupled to the case to close the opening, and a vent portion having a shape of a groove on the opposing surface, wherein a ten-point average roughness of a surface of the vent portion is greater than a ten-point average roughness of an area adjacent to the vent portion.
Resumen de: EP4611114A1
The present disclosure relates to a battery core, a battery pack, and an electric device. The battery core includes a cover plate assembly, a housing, a pole core, a spacer, and a monitoring module. The pole core is fixed in an inner cavity formed by enclosing the cover plate assembly and the housing. The spacer is fixed to a side of the pole core facing the cover plate assembly. The pole core is provided with a tab. The tab passes through the spacer and is fixed to the cover plate assembly. The monitoring module is fixed to the cover plate assembly or the spacer. The monitoring module is electrically connected to the tab to supply power to the monitoring module. In the present disclosure, the monitoring module of the battery core is integrated on the cover plate assembly or the spacer, which improves connection strength between the monitoring module and the battery core, so that the monitoring module has higher reliability. In addition, a power supply line of the monitoring module may be arranged along the cover plate assembly or the spacer, to reduce an impact of an environment on the monitoring module, so that the monitoring module has a better monitoring effect. In addition, a battery core assembly step is simplified, and assembly efficiency of the battery core is improved.
Resumen de: GB2638806A
An e-cigarette comprises, from top to bottom: a mouthpiece 1; an atomiser portion 2; a battery portion 3; and a refill container 4. A lower end of the mouthpiece 1 fits onto an upper end of the atomiser portion 2, a lower end of the atomiser portion 2 fits onto an upper end of the battery portion 3, the battery portion 3 has an inverted L-shape structure, and the battery portion 3 has an empty side comprising an installation notch 31 which detachably receives the refill container 4. One or more slide grooves 32 may be set on the side of the battery portion 3 facing the installation notch 31, wherein the refill container 4 has a slider matching the slide groove(s) 32. A limiting notch 33 may be set on the side of the battery portion 3 with a corresponding limiting protrusion 42 on the refill container 4, and a guide notch 34 with an inclined surface may be set below the limiting notch 33 such that when the refill container 4 is slidably engaged with the battery portion 3 and fully received in the installation notch 31, the limiting protrusion 42 engages with the limiting notch 33.
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.
Resumen de: EP4609921A1
An embodiment of the present invention provides a fire suppressant, a suppression member, and a secondary battery including the same, the fire suppressant comprising: at least one first material having a decomposition initiation temperature; and a second material mixed with the first material to bind the first material, wherein the first material is decomposed when the decomposition initiation temperature is reached to render a combustible organic compound non-combustible.
Resumen de: EP4611112A1
Disclosed is a battery cell evaluation apparatus, and more particularly a battery cell evaluation apparatus including a jig, the jig including: a housing including a cavity; a holder unit received in the cavity, the holder unit including a first connection member and a second connection member each configured to fix an electrode lead of a battery cell; and a first elevation adjustment member configured to adjust the height of the second connection member, wherein the first elevation adjustment member is configured to measure a pressing force of the second connection member when the second connection member and the first connection member are in tight contact or the second connection member and the electrode lead are in tight contact.
Resumen de: EP4611164A1
A battery cell includes a cell case including a sidewall and a top plate having a through-hole formed therein; an electrode terminal coupled to the through-hole and having a coupling groove formed in a bottom portion; an electrode assembly; and a first current collector electrically connecting the electrode terminal to the electrode assembly, wherein the first current collector includes a connection terminal having a protrusion inserted and coupled to the coupling groove, wherein the protrusion is coupled to the electrode terminal by welding performed on an outer side of the cell case, and wherein, in a welded region where the protrusion and the electrode terminal are welded, a thickness of the connection terminal has a value equal to or greater than that of a thickness of the electrode terminal.
Resumen de: EP4611096A1
An electrolyte for a lithium secondary battery according to exemplary embodiments may include an additive including a compound having a specific structure, an organic solvent and a lithium salt. Accordingly, a lithium secondary battery including the electrolyte for a lithium secondary battery may have improved flame retardant characteristics and lifespan characteristics while suppressing a thickness increase in a high temperature environment.
Resumen de: EP4611122A1
Provided are a liquid cooling device, a communicating assembly, and a battery pack. A projection is on the sidewall of a cooling channel. When the outer side of a liquid cooling plate is squeezed, the projection between the sidewalls of the cooling channel supports the sidewalls, thereby preventing the remaining portion of the cooling channel from being clogged.
Resumen de: EP4611154A1
Electrochemical devices are disclosed for various applications such as secondary batteries. In an embodiment, an electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator includes a porous separator including inorganic fibers or including inorganic particles and a polymer binder, and the electrolyte includes a nitrile-based compound. The electrochemical device exhibits high ionic conductivity by including the porous separator having wettability to the electrolyte.
Resumen de: EP4611093A1
Electrochemical devices are disclosed for various applications such as secondary batteries. In an embodiment, an electrochemical device including a positive electrode, a negative electrode, a separator, and an electrolyte. Specifically, the separator includes a porous polymer membrane including one or more of hydrophilic inorganic particles or a hydrophilic polymer that are blended in a porous substrate, and the electrolyte includes a nitrile-based compound. The electrochemical device exhibits high ionic conductivity by including the porous separator having wettability to the electrolyte.
Resumen de: EP4611095A1
Electrochemical devices are disclosed for various applications such as secondary batteries. In an embodiment, an electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator includes a porous hydrophilic polymer membrane, and the electrolyte includes a nitrile-based compound. The electrochemical device exhibits high ionic conductivity by including the porous separator having wettability to the electrolyte.
Resumen de: EP4611149A1
Embodiments of the present application provide a battery cell, a battery and an electrical device, which relate to the technical field of batteries. The battery cell includes a shell, the shell includes a pressure relief component, the pressure relief component has a first groove, and the pressure relief component is configured to be capable of cracking along the first groove, so as to release pressure in the battery cell. The first groove includes a first groove section, a second groove section and a third groove section, the first groove section and the third groove section are oppositely arranged, the second groove section is connected to the first groove section and the third groove section, and the residual thickness of the first groove section and the residual thickness of the third groove section are both less than the residual thickness of the second groove section. This is equivalent to the residual thickness of the second groove section being increased, increasing the anti-fatigue strength of the pressure relief component in the region where the second groove section is disposed, decreasing the possibility of the pressure relief component cracking in the second groove section during normal use of the battery cell, increasing the long-term reliability of the pressure relief component, and prolonging the service life of the battery cell.
Nº publicación: EP4610231A1 03/09/2025
Solicitante:
LG CHEMICAL LTD [KR]
LG Chem, Ltd
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.
BOPI
Sede Electrónica
