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586
resultados
Última actualización
25/08/2026 [07:49:00]
Resultados 475 a 500 de 586
Resumen de: EP4792942A1
Provided in the present application are a coating mechanism and a coating device. The coating mechanism comprises a coating head and an acceleration mechanism, the coating head being provided with an accommodating cavity, and the cavity wall of the accommodating cavity being provided with a feeding opening and a discharging opening. At least part of the acceleration mechanism is located in the accommodating cavity. The acceleration mechanism is configured to split in the first direction a slurry stream entering from the feeding opening, the first direction intersecting with a discharging direction of the discharging opening. The slurry enters the accommodating cavity of the coating head through the feeding opening and is coated onto an electrode sheet by means of the discharging opening. Using the part of the acceleration mechanism inside the accommodating cavity can raise the flow speed of the slurry in the accommodating cavity, i.e. using an active mode to raise the flow speed of the slurry in the accommodating cavity, thereby solving the problem of slurry accumulation in accommodating cavities.
Resumen de: EP4794003A1
A negative electrode sheet, a battery cell and an electric device. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one side of the negative electrode current collector; the negative electrode film layer comprises at least one negative electrode active material layer containing a negative electrode active material, one of the at least one negative electrode active material layer comprises a first area and a second area, and in the thickness direction of the negative electrode sheet, the first area at least covers the two ends of the negative electrode current collector in a first direction; the thickness direction is perpendicular to the first direction; the second area and the first area are continuously arranged in the first direction, the second area is sandwiched in the first area, and the second area covers part of the negative electrode current collector in the thickness direction; the compaction density of the negative electrode active material located in the first area is Ag/cm3, the compaction density of the negative electrode active material located in the second area is Bg/cm3, and B/A<1.
Resumen de: EP4794088A1
A cell cover plate, a cell, and a battery pack are provided by the present disclosure. The cell cover plate includes a cover plate body. The cover plate body includes a top surface and a bottom surface opposite to each other. The cover plate body is provided with a liquid injection hole. The liquid injection hole penetrates through from the top surface to the bottom surface. The bottom surface is configured to face a cell pack, at least a partial region on the bottom surface is configured as a flow guiding surface. The flow guiding surface is adjacent to the liquid injection hole. The flow guiding surface is inclined from the liquid injection hole in a direction away from the top surface.
Resumen de: WO2025078036A1
The invention relates to a calender (100) for calendering sheet materials (10), preferably in order to produce electrodes, having a first roller (1) and a second roller (2). The rollers (1, 2) can be moved relative to each other in an axial direction (A), and the calender (100) has first actuation means (7) for bending the first roller (1) by the introduction of torque in a radial direction (R). The invention additionally relates to a method for operating a calender (100).
Resumen de: EP4794013A1
0001 The present disclosure provides a negative electrode, a secondary battery, and an electric device, and belongs to the technical field of batteries. By controlling volume median particle sizes Dv50 of a first negative electrode active material and a second negative electrode active material in a negative electrode active material, a grading ratio (X) of the negative electrode active material, a tensile strength of the negative electrode, and a content of a first binder in the negative electrode active material layer to satisfy the following relationship: 0.69 ≤ (A + B) × X/(N × C) ≤ 160, the present disclosure can effectively enhance the adhesion and electrical conductivity of the negative electrode and effectively suppress the expansion and contraction of the negative electrode active material, thereby improving the stability of the negative electrode active material. This design enables the negative electrode active material to be uniformly distributed on the negative electrode, shortens the migration and diffusion path of lithium ions in the negative electrode active material, and reduces the resistance of the secondary battery while improving the cycling performance of the secondary battery.
Resumen de: EP4793995A1
0001 The present disclosure relates to a secondary battery and an electrical device. The secondary battery satisfies a relationship as follows: 0.3 ≤ A/100×(N+100P) ≤ 25; where A, in ppm, represents a mass content of the Al element in the positive electrode active material; P, in %, represents a weight percentage of the pyridine-based additive in the electrolyte; and N, in %, represents a weight percentage of the nitrile-based additive in the electrolyte. By correlating and defining the relationship between the key additives in the electrolyte and the Al content in the positive electrode active material, the present disclosure can effectively enhance the complexation between the nitrile-based and pyridine-based additives in the electrolyte and the positive electrode active material, thereby improving the film-forming stability of the battery during charging, and thus significantly enhancing the high-temperature stability of the battery.
Resumen de: EP4793232A1
Provided are a preparation method for lithium iron phosphate, a positive electrode active material, a positive electrode plate, a battery, and a power-consuming device. The preparation method for lithium iron phosphate comprises: dissolving a first iron source, a second iron source, a lithium source and a phosphorus source in a solvent to obtain a mixed slurry; and sintering the mixed slurry to obtain lithium iron phosphate, wherein the first iron source comprises at least one of iron oxide or first iron phosphate, and the second iron source comprises at least one of second iron phosphate or ferrous oxalate, the first iron phosphate has an iron to phosphorus ratio of 0.97-0.985, and the second iron phosphate has an iron to phosphorus ratio of 0.93-0.96. The primary particles of lithium iron phosphate, which have different particle sizes, can be mixed and matched, thus improving the compaction density of lithium iron phosphate and the energy density of the battery.
Resumen de: EP4794026A1
0001 The present application relates to a positive electrode active material and a preparation method therefor, a positive electrode sheet, a secondary battery, and an electric device. The positive electrode active material comprises an active substance; the active substance comprises a lithium nickel manganese oxide; the lithium nickel manganese oxide comprises a spinel phase; in an X-ray diffraction analysis pattern of the lithium nickel manganese oxide, there is a first diffraction peak at a diffraction angle 2θ of 18° to 19° and a second diffraction peak at a diffraction angle 20 of 44° to 45°; the first diffraction peak corresponds to a crystal face (111), and the second diffraction peak corresponds to a crystal face (400); the peak intensity of the first diffraction peak is I<(111)>, the peak intensity of the second diffraction peak is I<(400)>, and I<(111)> and I<(400)> satisfy: 2.5 ≤ I<(111)>/I<(400)> ≤ 4.0; and the lithium nickel manganese oxide satisfies the chemical formula Li
Resumen de: EP4794002A1
An electrode sheet, a secondary battery, an electric device, a preparation method, and a reuse method. The electrode sheet comprises a current collector and multiple active material layers located on at least one side of the current collector; the multiple active material layers comprise a first active material layer and a second active material layer, wherein the second active material layer is the active material layer farthest from the current collector, and the first active material layer is located between the second active material layer and the current collector, and comprises current collector particles.
Resumen de: EP4794100A1
0001 The present disclosure provides a battery, an energy storage device, and an energy storage system. The battery of the present disclosure includes a positive electrode sheet, a separator, and a negative electrode sheet. The separator is disposed between the positive electrode sheet and the negative electrode sheet. The separator includes a substrate film, a first adhesive layer, and a second adhesive layer. The first adhesive layer is disposed between the substrate film and the positive electrode sheet for bonding the substrate film to the positive electrode sheet, and the second adhesive layer is disposed between the substrate film and the negative electrode sheet for bonding the substrate film to the negative electrode sheet. The battery satisfies the relationship: 0.85≤(Fc·Wc)/(Fa·Wa)≤6.36; where Fc is the peel strength between the first adhesive layer and the positive electrode sheet, Wc is the coating amount per unit area of the first adhesive layer on the substrate film, Fa is the peel strength between the second adhesive layer and the negative electrode sheet, and Wa is the coating amount per unit area of the second adhesive layer on the substrate film.
Resumen de: EP4794032A1
0001 The present application relates to the technical field of secondary batteries. Provided are a lithium ferrite lithium supplement, a cathode material, a cathode plate, and a secondary battery. The lithium ferrite lithium supplement of the present disclosure includes a nuclear layer and a shell layer covering a surface of the nuclear layer. A material of the nuclear layer includes Li<5>FeO<4>, and a material of the shell layer includes a carbon material. I
Resumen de: EP4794027A1
The present application provides a cathode material, a manufacturing method thereof, a cathode plate, a secondary battery, and an electric device, which belongs to the technical field of battery cathode materials. The cathode material includes a carbon layer and a plurality of sodium vanadium fluorophosphate particles distributed in the carbon layer. The sodium vanadium fluorophosphate particles are coated by the carbon layer. The carbon layer has a porous network structure and a thickness of 3 nm to 6 nm. A porosity of the cathode material is 10% to 35%. The manufacturing method adopts a microwave-assisted hydrothermal treatment and a sol-gel technology to obtain a gel slurry, which is dried and then calcined to obtain the above cathode material. The cathode material of the present application improves the wettability in an electrolyte and the electron and sodium ion transport efficiency, which improves the charging and discharging efficiencies and the electrochemical performance of the secondary battery.
Resumen de: EP4794031A1
The present disclosure provides a lithium supplement and belongs to the technical field of energy storage. The lithium supplement includes: a rich-lithium lithium iron oxide material, and a coating layer coated on a surface of the rich-lithium lithium iron oxide material. A material of the coating layer includes lithium pyrophosphate. The present disclosure is beneficial for solving technical problems such as poor stability in air and poor safety of the rich-lithium cathode materials in related technologies to achieve effectively supplementation.
Resumen de: WO2025096234A1
A battery power station including a top panel, a base, and side panels which define a structure, and a first removable end panel and a second removable end panel. The battery power station includes an electronics compartment within the structure including at least one printed circuit board, and a battery compartment within the structure configured to receive a battery pack module. The base includes lateral protrusions having a hook structure configured to interdigitate with corresponding hook structure of the side panels forming a seal between the base and the side panels. The first and second removable end panels include a shell having protrusions extending from an inner surface of the shell and around a periphery of the shell, the protrusions configured to create a seal with the structure forming a seal between the structure and the first and second removable end panels.
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: WO2025078086A1
The invention relates to a device for contacting battery modules, comprising two connection parts (2, 3) which can be moved along an insertion direction (1) relative to one another between a disconnection position and a connection position, wherein a first connection part (2) comprises a contact body (4) having an electrical contact face (5) and a second connection part (3) comprises a contact terminal which, in the connection position, is seated against the contact face (5). In order to allow reliable electrical connection regardless of the mechanical load and, at the same time, to require little space, according to the invention the contact terminal is a contact spring (6) which, in the connection position, is resiliently seated against the contact face (5) perpendicularly to the insertion direction (1) and a connection part (3) has a stop face (7) for a positioning body (8) of the other connection part (2), said stop face acting perpendicularly to the insertion direction (1), and the contact face (5) having a greater area than the stop face (7).
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: EP4793196A1
Disclosed in the present application are a container, an energy storage apparatus, an energy storage system and a charging network. The energy storage apparatus comprises containers. There are m containers, where m>2, and the m containers are arranged in the direction of height of the containers. The size of each container in the direction of length thereof is consistent with the size of a standard container in the direction of length thereof, the size of each container in the direction of width thereof is consistent with the size of a standard container in the direction of width thereof, the size of each container in the direction of height thereof is smaller than the size of a standard container in the direction of height thereof, and the sum of the sizes of ml adjacent containers among the m containers in the direction of height thereof is equal to the sum of the sizes of n standard containers in the direction of height thereof. The size of ml containers in the direction of height thereof is equal to the size of n standard containers in the direction of height thereof, such that the space occupied by ml stacked containers is the same as the space occupied by n standard containers, thereby improving the space utilization rate of container placement, and reducing the container transportation cost, thus reducing the use cost of energy storage apparatuses.
Resumen de: EP4794064A1
0001 Some embodiments of this application provide a secondary battery and an electrochemical device. The secondary battery includes an electrode assembly and a shell. The shell is configured to accommodate the electrode assembly. The shell includes a first wall and a second wall opposite to each other along a thickness direction of the electrode assembly. The first wall is provided with a first protruding portion that protrudes toward an inside of the shell. The shell further includes a third wall. The third wall connects the first wall and the second wall. The third wall is spaced apart from the electrode assembly along a first direction. The first direction is perpendicular to a thickness direction of the electrode assembly. Along the thickness direction of the electrode assembly, a dimension of an inner surface of the third wall is L<1>, a thickness of the electrode assembly is L<2>, and a height by which the first protruding portion protrudes beyond an inner surface of the first wall is L<3>, satisfying: L<3> > L<1> - L<2>. The technical solutions provided herein can improve the reliability and safety performance of the secondary battery.
Resumen de: EP4794096A1
A battery pack according to an embodiment of the present invention includes a module assembly including a plurality of battery modules each including, on a side, a module opening through which venting gas is discharged, a pack cover facing the module opening and configured to cover the side of the module assembly, and an oxygen introduction preventing member located in a space formed between the module assembly and the pack cover and configured to prevent oxygen from being reversely introduced after venting gas is discharged in an extension direction of the space.
Resumen de: EP4794132A1
0001 Provided in the present application are a connector (400), a battery (100), an electrical device, and an energy storage device. The connector (400) comprises a plug (410) and a protective cover (420), the protective cover (420) being provided with an accommodation cavity (421), an opening portion (422) being formed at the cavity opening of the accommodation cavity (421), and the plug (410) being accommodated in the accommodation cavity (421). When the plug (410) is inserted into a plugging port (31), the opening portion (422) covers a socket (30), such that the plugging port (31) is located inside the accommodation cavity (421). With respect to the connector (400) provided in the embodiments of the present application, the protective cover (420) can cover the plug (410) to achieve the purposes of dustproofing and waterproofing, and moreover, the opening portion (422) of the protective cover (420) can cover the socket (30) and provide covering protection for the plugging port (31) of the socket (30), thereby effectively reducing the probability of water seepage at the plugging port (31), and further improving the reliability of the connector (400) and the plugging port (31).
Resumen de: EP4794038A1
The present invention relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which relates to a cylindrical secondary battery manufacturing device capable of effectively performing line balancing in a circulation manufacturing line.According to one example of the present invention, it is possible to provide a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, capable of automatically determining an appropriate quantity of carriers during circulation in a circulation manufacturing line through a master carrier distinguished from general carriers and a sensor sensing the master carrier.
Resumen de: EP4794037A1
0001 The present invention relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which relates to a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, capable of effectively performing line balancing in a circulation manufacturing line. 0002 According to one example of the present invention, it is possible to provide a cylindrical secondary battery manufacturing device and a cylindrical secondary battery manufacturing method, which are characterized by comprising a plurality of sensors provided along a buffer line provided between preceding equipment and succeeding equipment, to calculate loading degrees of carriers step-by-step in the buffer line; and a controller adjusting process speeds of the preceding equipment and the succeeding equipment based on the step-by-step loading degrees calculated through combinations of outputs of the plurality of sensors, thereby balancing the process speeds of the preceding equipment and the succeeding equipment, and controlling to track the overall target process speed.
Resumen de: AU2024360191A1
A method can include receiving battery sensor measurements, determining a state of the battery (e.g., SoH, SoC, SoE, SoP, etc. or information correlated therewith such as internal resistance, open circuit voltage, etc.), estimating an aging profile or degradation of the battery for one or more operating conditions, and determining operating conditions for the battery based on the estimated degradation.
Nº publicación: EP4794040A1 19/08/2026
Solicitante:
NITERRA CO LTD [JP]
Niterra Co., Ltd.
Resumen de: EP4794040A1
Provided are a power storage device (10) which can suppress the growth of dendrites while suppressing increases in the mass and volume of the power storage device, and a method for manufacturing the power storage device. The power storage device includes a positive electrode (11), a negative electrode (15), and a separator (14) for isolating the positive electrode and the negative electrode. The negative electrode includes an active material layer (17), an electrolyte layer (18), and a conduction layer (19), which are arranged in this order toward the positive electrode. The active material layer includes an active material which reduces carrier ions. The electrolyte layer includes an electrolytic solution and a solid electrolyte having conductivity for carrier ions, and is in contact with the active material layer. The conduction layer has electron conductivity, is in contact with the electrolyte layer, and takes in an element deposited at an interface between the active material layer and the electrolyte layer.
BOPI
Sede Electrónica
