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1369
resultados
Última actualización
21/08/2025 [07:15:00]
Resultados 575 a 600 de 1369
Resumen de: EP4601058A1
A battery cell includes an electrode assembly in which a plurality of separators and a plurality of electrode plates including a plurality of electrode tabs are stacked in a first direction, a cell case accommodating the electrode assembly, a cap plate assembly covering an open end of the cell case and including an electrode terminal, and a current collector electrically connecting the plurality of electrode tabs and the electrode terminal. The plurality of electrode tabs include bent portions having a bend shape. The bent portions are arranged in a layered manner in the first direction. The current collector is welded to a plurality of the bent portions, while being disposed to face a second direction, intersecting the first direction.
Resumen de: EP4600391A1
Provided is a method for producing a lithium-containing solution that allows suppressing production cost for lithium production by suppressing solution amount after an adsorption step, increasing a lithium content rate in the lithium-containing solution, and suppressing amount of solution used in a step after a manganese oxidation step. The method for producing a lithium-containing solution performs the adsorption step, an eluting step, and an manganese oxidation step in this order. In the adsorption step, an anion-exchange resin is used together with the lithium adsorbent. This aspect allows hydrogen ions generated in the adsorption step to be adsorbed by the anion-exchange resin, thereby promoting an adsorption reaction. Therefore, the solution amount after the adsorption step can be suppressed, the lithium content rate in the lithium-containing solution increases, the amount of the solution used in the step after the manganese oxidation step is suppressed. This allows suppressing production cost for lithium production.
Resumen de: EP4601108A1
The present disclosure relates to the technical field of batteries, and for example, to a current collector (1) and a battery. The current collector (1) includes a pole post connecting portion (11), a main body portion (12) and a folded portion (13) which are sequentially connected. The pole post connecting portion (11) and the folded portion (13) are respectively located on an inner side and an outer side of the main body portion (12) or on the same side of the main body portion (12). One end of the main body portion (12) is connected to the pole post connecting portion (11), the other end of the main body portion (12) away from the pole post connecting portion (11) is bent to form at least one of the folded portion (13), and the pole post connecting portion (11) is connected to a pole post (41). The folded portion (13) overlaps the main body portion (12), and one of the folded portion (13) or the main body portion (12) is able to be welded to a tab (21) of a cell pack (2).
Resumen de: EP4601059A1
A cylindrical lithium metal secondary battery, comprising: a casing, a battery cell electrode set arranged in the casing, and an electrolyte filling the housing. The battery cell electrode set comprises a wound electrode set and tabs arranged on the wound electrode set; the wound electrode set is formed by winding a positive electrode, a negative electrode, and a separator; the negative electrode is a metal lithium sheet; the metal lithium sheet serves as a negative electrode current collector and a negative electrode active material. According to the cylindrical lithium metal secondary battery, a metal lithium sheet is used as a negative electrode and the metal lithium sheet has the functions of both an active material and a current collector, so that a common copper current collector is no longer needed, the thickness of the separator of the wound electrode set is greatly reduced, and the energy density of the battery is greatly improved. Additionally, by using a cylindrical battery structure, stable charge and discharge cycles are achieved without applying an external pressure.
Resumen de: EP4600328A1
The disclosure provides a modified green coke material, a method for preparing the modified green coke material, and an application of the modified green coke material. A sum of percentages of a long fibrous structure and a broad-domain structure in a polarized microstructure of the modified green coke material is in a range of 55 ~ 99%, and a percentage of volatile components in the modified green coke material is in a range of 1% ≤ volatile components matter < 5%. In regard to the modified green coke material provided in the disclosure, the long fibrous structure and the broad-domain structure are increased, the volatile components are effectively reduced, and light components are further excluded, thereby eliminating a self-bonding property of raw materials. In this case, further agglomeration will not occur during a subsequent heat treatment for preparing a graphite negative electrode material. Using the modified green coke material to prepare the graphite negative electrode material can effectively improve a graphitization degree, a gram capacity, and a compaction density of the graphite negative electrode material, thus comprehensively improving the performance of the graphite negative electrode material.
Resumen de: EP4601103A1
The present application discloses a partition plate, a partition plate assembly, a battery module, a battery pack, and an electrical device, and belongs to the technical field of batteries. An partition plate of the present application is applied to a battery module, the partition plate including: a plurality of exhaust holes, a portion of the exhaust holes in the plurality of the exhaust holes having an exhaust direction provided along a first direction, and another portion of the exhaust holes in the plurality of the exhaust holes having an exhaust direction provided along a second direction, where the first direction and the second direction are provided at an included angle to the vertical direction, respectively, and the first direction and the second direction are provided at an included angle. The exhaust holes of the present application are provided at least toward the first direction and the second direction, and along a thickness direction of the partition plate body, which can avoid the risk of the top of the battery module or the battery pack bursting due to the difficult exhaust from the top, and thus can prevent the problem of the failure of the battery module or the battery pack from occurring.
Resumen de: EP4601043A1
Provided is an electrode material containing an electrode active material and a polymer having an ability to preferentially conduct metal ions, in which a volume ratio of the polymer to a total volume of the electrode active material and the polymer is 0.01 to 0.65.
Resumen de: EP4601088A1
The disclosure relates to the technical field of batteries and particularly discloses a battery box and a battery pack applying the same. The battery box includes a bottom plate (1), a lateral plate (2), a lower support (3), a partition (4), and an upper support (5), in which a top surface of the bottom plate is provided with a first protrusion, the lateral plates are provided perpendicular to the bottom plate on two opposite edges of the bottom plate, an interior side of the lateral plate is arranged with a first snap-block (21) and a second snap-block (22) along an extension direction, the first snap-block is closer to the bottom plate than the second snap-block, two opposite ends of the lower support are provided on the first snap-block respectively, a bottom of the lower support is abutted against a first protrusion (11), a top of the lower support is arranged for placing cells, two opposite ends of the partition are fixedly connected to the second snap-block respectively, a top of the partition is provided with a second protrusion (41), two opposite ends of the upper support are provided on the second snap-block respectively, a bottom of the upper support is abutted against the second protrusion, and a top of the upper support is arranged for placing cells.
Resumen de: WO2024091582A1
A method and system for slitting a lithium-coated polyethylene terephthalate (PET) roll is provided. The roll undergoes laser ablation to remove a portion of a layer of lithium where a slit is desired exposing the PET substrate underneath. The roll then undergoes a blade cutting process wherein the roll is cut along exposed PET substrate, producing a plurality of slit rolls. The laser ablation of the roll prior to blade cutting allows lithium to be removed, preventing lithium build-up on the blade. This reduces maintenance time, improves the quality of the slit roll edges, and allows for longer lengths of rolls to be cut. The laser ablation also allows for rolls with thick layers of lithium to be blade cut.
Resumen de: EP4601097A1
A battery pack according to an embodiment of the present invention includes: a housing; at least one battery module accommodated in the housing; a venting part provided in the housing to discharge a gas generated in the battery module; a filter disposed in front of the venting part in a flow direction of the gas; a scraper configured to remove foreign substances accumulated on the filter; and a driving part operating by the flow of the gas to reciprocate the scraper.
Resumen de: EP4601100A1
The present disclosure relates to a battery module. The battery module according to an embodiment of the present disclosure may include a plurality of cell assemblies, each including a plurality of battery cells connected in parallel with each other, and a firewall disposed between two adjacent cell assemblies among the plurality of cell assemblies.
Resumen de: EP4600224A1
Provided are a method for preparing a lithium carbonate, a lithium carbonate prepared using the same, and a rechargeable lithium battery including a positive electrode active material prepared using the same, and more particularly, to a method for preparing a lithium carbonate, including mixing a lithium nickel-based composite oxide and a coating solution to form a first mixture where the coating solution includes a coating raw material, a precipitant, and a solvent, filtering the first mixture to recover a washing solution containing at least 1000 ppm of lithium, filtering the washing solution, mixing and heating the filtered washing solution and sodium carbonate to form a second mixture, and filtering, washing, and drying the second mixture, wherein the heating is performed at a temperature of about 50 °C to about 80 °C.
Resumen de: EP4601067A1
A lithium secondary battery includes a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material, the positive electrode material includes a lithium transition metal oxide represented by a specific chemical formula, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes a first additive and a second additive, the first additive includes a phosphate-based additive having a silyl group, and the second additive includes a compound represented by a specific chemical formula.
Resumen de: EP4601086A1
Disclosed is a cylindrical secondary battery (100) in which an insulating member (170) located between a rivet terminal (150) and a cylindrical can (210, 310) includes protrusions (172a, 172b, 272a, 272b, 372a, 372b) protruding therefrom upward and downward, thereby preventing rotation of the rivet terminal (150). The cylindrical secondary battery (100) may include an electrode assembly (120) including a positive electrode plate (121), a separator (123), and a negative electrode plate (122), a cylindrical can (210, 310) configured to accommodate the electrode assembly (120) and to be electrically connected to the negative electrode plate (122) and including an open lower end portion, a rivet terminal (150) configured to be electrically connected to the positive electrode plate (121) through an upper surface of the cylindrical can (210, 310), an insulating member (170) located between the cylindrical can (210, 310) and the rivet terminal (150), and a non-polar cap plate (160) configured to seal the lower end portion of the cylindrical can (210, 310). The insulating member (170) includes protrusions (172a, 172b, 272a, 272b, 372a, 372b) formed on at least one surface thereof facing the cylindrical can (210, 310) or the rivet terminal (150).
Resumen de: EP4601085A1
This invention relates to a pouch-type secondary battery including: a first pouch having a first cup portion recessed in a predetermined first direction to form a first inner space, and a first edge portion extending from the first cup portion in a predetermined horizontal direction perpendicular to the first direction and surrounding at least a portion of the first cup portion; and a second pouch disposed to face the first pouch, wherein the second pouch has a second cup portion recessed in a direction opposite to the first direction to form a second inner space for accommodating an electrode assembly together with the first inner space, and a second edge portion extending from the second cup portion in the horizontal direction to surround at least a portion of the second cup portion and coupled to the first edge portion; wherein the second inner space may include: an overlapping space that overlaps the first inner space based on a case of projection in the first direction, and an additional space that extends from the overlapping space in the horizontal direction and does not overlap the first inner space.
Resumen de: EP4601062A1
A jelly roll battery cell, a battery, a battery assembly and an electric device. The jelly roll battery cell (100) includes a main body portion (10) and a tab portion (20); one side of each positive winding portion (101a) in one part of positive winding portions (101a) is connected to one positive tab (21), and one side of each positive winding portion (101a) in the other part of the positive winding portions (101a) is connected to two positive tabs (21); and/or, one side of each negative winding portion (101b) in one part of negative winding portions (101b) is connected to one negative tab (22), and one side of each negative winding portion (101b) in the other part of the negative winding portions (101b) is connected to two negative tabs (22). This structure not only increases a number of the positive/negative tabs and a flow area of the jelly roll battery cell, but also avoids interlayer pseudo soldering between excessive positive/negative tabs and electrically conductive connecting welds by means of a restriction on the number of positive/negative tabs.
Resumen de: EP4601099A1
The present invention provides a structure of a battery module including: a battery cell laminate; a housing having an open upper end and accommodating the battery cell laminate; and a top cover covering the upper end of the housing, wherein the top cover includes: a first layer 11 having a rigid body; a second layer 12 having a flexible body and laminated on the first layer 11; a ventilation hole 111 perforating the first layer 11 in vertical direction; and a non-circular slit 121 perforating the second layer 12 in the vertical direction, and the first layer 11 and the second layer 12 are fixed to each other along at least a section of edges thereof.
Resumen de: EP4601078A1
Ein Batteriegehäuse (1) für eine Antriebsbatterie (2) eines Fahrzeugs umfasst eine Gehäusewandung (3), wobei die Gehäusewandung (3) einen Kunststoff aufweist. Das Batteriegehäuse (1) umfasst eine Fluidleitung (4) für ein Temperiermittel. Die Fluidleitung (4) ist wenigstens zum Teil in der Gehäusewandung (3) eingebettet.
Resumen de: EP4600082A1
A battery temperature adjustment system is configured to adjust a temperature of an electricity storage device (100) mounted on a vehicle (1). The battery temperature adjustment system includes a temperature adjustment device (800) configured to adjust a temperature of the electricity storage device (100) and a processor (300) configured to control the temperature adjustment device (800). A setting mode of the temperature adjustment device (800) includes a first mode and a second mode.
Resumen de: EP4600219A1
A positive electrode active material including core particles including layered lithium nickel-manganese-based composite oxide, wherein each core particle is a secondary particle formed by agglomerating a plurality of primary particles, and a crystal size of the primary particle is about 105 nm to about 115 nm.
Resumen de: EP4601063A1
A solid-state electrolyte membrane, a preparation method therefor, an all-solid-state battery and an electrical apparatus. The solid-state electrolyte membrane comprises a solid-state electrolyte and a ceramic fiber material dispersed in the solid-state electrolyte; the solid-state electrolyte comprises an inorganic solid-state electrolyte; when the diameter of the ceramic fiber material is denoted as D and the length of the ceramic fiber material is denoted as L, the diameter of the ceramic fiber material and the length of the ceramic fiber material satisfy: L/D ≥ 2. Since the ceramic fiber material is dispersed in the solid-state electrolyte, when the solid-state electrolyte membrane is fractured by the stress generated by electrochemical deposition, the ceramic fiber material around cracks may be pulled out or fractured so as to absorb a large amount of strain energy of the fracture, thus substantially increasing the difficulty of crack propagation, improving the fracture toughness of solid-state electrolyte membranes so as to enhance mechanical properties thereof and inhibit generation of lithium dendrites, and also significantly increasing the critical current density of the solid-state electrolyte membranes.
Resumen de: EP4601148A1
Disclosed are a module balancing method and a battery management system, the system including: a charge equalization circuit performing module balancing between a first module including a plurality of central cells each having a potential falling within a central potential range, a second module including at least one lower cell having a potential falling within a lower potential range, and a third module including at least one upper cell having a potential falling within an upper potential range, among the plurality of battery cells connected in series with each other; and a control unit calculating each module voltage of the first module, the second module, and the third module based on each cell voltage of the plurality of battery cells, determining an energy transfer direction based on the calculated module voltage, and controlling the module balancing based on the determined energy transfer direction.
Resumen de: EP4601073A1
The present application provides a negative current collector and a preparation method thereof, a sodium secondary battery, and an electrical device. The negative current collector includes a matrix and a functional layer disposed on at least one side of the matrix and includes a multifunctional additive. The multifunctional additive includes NaxMNy*zH2O, where: M includes an atom capable of forming an alloy with Na; N includes at least one of atom O, atom S, and atom Se; and 0
Resumen de: EP4601087A1
A top cover assembly (100), a battery cell, an assembling method for a battery cel, and an electric device. The top cover assembly (100) includes: a top cover loading-into-housing assembly (101), comprising an insulation member (110), an adapter (120), a first end cover (130) and a pole (150) connected to the adapter (120), wherein the projection contour of the first end cover (130) falls within an area defined by the outer edge contour of the insulating member (110). A projection contour of the first end cover (130) is located within a region defined by an outer edge contour of the insulation member (110), and the pole (150) sequentially penetrates the insulation member (110) and the first end cover (130).
Nº publicación: EP4601025A1 13/08/2025
Solicitante:
JINKO ENERGY STORAGE TECH CO LTD [CN]
Jinko Energy Storage Technology Co., Ltd
Resumen de: EP4601025A1
The present disclosure provides positive material, preparation method, and secondary battery. The positive material includes lithium iron phosphate active material and coating layer. The lithium iron phosphate active material includes secondary particles, first primary particles are distributed between at least part of the secondary particles, and the coating layer includes first coating layers covering surfaces of secondary particles. The first coating layers cover surfaces of secondary particles in surface-coated state, and first coating layers each have a reticular structure. The surfaces of secondary particles each have surface-coated coating layer having reticular structure, which improves a capacity, rate performance, and cycle performance of the positive material. Through matching between the first primary particles and the secondary particles, compaction density of the positive material is increased, agglomeration of particles of the positive material is reduced, and the capacity and the rate performance of the positive material are improved.
BOPI
Sede Electrónica
