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1482
resultados
Última actualización
03/04/2026 [07:26:00]
Resultados 275 a 300 de 1482
Resumen de: EP4718538A1
A composite positive electrode material, a preparation method thereof and a use thereof, where the composite positive electrode material includes an inner core and a carbon coating layer covering at least part of a surface of the inner core and/or embedded in the inner core; the inner core includes NaFePO4 and a compound represented by Formula 1; Na4+xFe3-y(PO4)2+zP2O7 Formula 1; in Formula 1, - 0.15≤x≤0.8, 0≤y≤0.5, and -0.2≤z≤0.2; and a particle size of NaFePO4 is ≤ 100 nm. The composite positive electrode material, when used in batteries, can improve the capacity and rate capability of the batteries.
Resumen de: GB2644303A
A battery cell has an anode, a cathode, a separator, and a first inorganic solid-state electrolyte having a melting point between 25 °C and 300 °C. The first inorganic solid-state electrolyte (ISSE) melts and functions as an ion conductor to overcome interfacial challenges associated with known solid-state batteries (SSBs) at room temperature. The separator may be porous, for example having a porosity from 40 to 60% by volume, and at least a portion of the inorganic solid state electrolyte may be contained within the separator. The separator may be disposed between the anode and the cathode and the solid state electrolyte may extend through the separator from a first side to a second side. The first solid state electrolyte may comprise ternary metal halide, a metal antiperovskite or a metal sulphide, for example ternary lithium halide, lithium anti-perovskite, lithium sulfide, ternary sodium halide, sodium anti-perovskite or sodium sulfide. The electrolyte may include NaAlCl4, Li3YCl6, Li3OCl, Na3OCl, Li6PS5Cl, Li4GeS4, Na4GeS4, Li10GeP2S12 or Na10GeP2S12. The battery cell may further comprise a second solid state electrolyte with a melting point greater than 300 °C. The second electrolyte and the first electrolyte may be blended.
Resumen de: EP4717674A1
Provided in the present application are a lithium-containing precursor of a positive electrode material and a preparation method therefor, a positive electrode material, and a lithium secondary battery. The lithium-containing precursor of a positive electrode material satisfies the chemical formula Li<sub>a</sub>(Ni<sub>x</sub>Co<sub>y</sub>Mn<sub>1-x-y</sub>)O<sub>(1+a)</sub>(Li<sub>2</sub>CO<sub>3</sub>)<sub>z</sub>, wherein a is 0.10-1.08; 0 < x < 1, 0 < y < 1, and x+y < 1; z is greater than 0 and less than or equal to 0.354, and the carbon content thereof is greater than 0 and less than or equal to 6.2 wt%. In the lithium-containing precursor of a positive electrode material disclosed in the present application, the production process flow of the positive electrode material is simplified by directly pre-sintering lithium into the precursor, such that decomposition of lithium carbonate into carbon dioxide is reduced, and carbon emissions are reduced; since lithium is directly pre-sintered into the precursor, the loss ratio of lithium during the sintering of the positive electrode material is reduced, thereby improving the finished product yield under the same bowl-loading amount, and greatly increasing the production capacity of a production line; and in addition, when the lithium-containing precursor of a positive electrode material in the present application is
Resumen de: US2025007011A1
An electrical device can comprise: a battery including one or more electrochemical cells; a temperature sensor positioned in at least one of the electrochemical cells; a current sensor for measuring a current flowing from the battery; and a battery management system including a controller in electrical communication with the temperature sensor and the current sensor. The controller is configured to execute a program to: (i) calculate a terminal voltage of the battery using an electrochemical model that receives as inputs a temperature reading from the temperature sensor and the current flowing from the battery and outputs the terminal voltage of the battery, wherein the electrochemical model calculates the terminal voltage of the battery using a lithium-ion concentration distribution as a first polynomial function and an electrolyte potential distribution as a second polynomial function, and (ii) determine a state of the battery based on the terminal voltage.
Resumen de: EP4718546A1
The disclosure relates to a battery cell component (22) for a battery cell (14) of a vehicle. The battery cell component (22) comprises an elongated core element (24) extending along a direction of extension (A) and being electrically conductive. The battery cell component (22) further comprises a first electrode sheet (36). The first electrode sheet (36) is electrically coupled to the elongated core element (24). The first electrode sheet (36) is windable or wound around the elongated core element (24). Additionally, a battery cell (14) for a vehicle is described. Furthermore, a method for manufacturing a battery cell component (22) or a battery cell (14) is shown. Also, a vehicle is described.
Resumen de: EP4718598A1
Die Erfindung betrifft ein Batteriegehäuse (1) zur Aufnahme von einer Vielzahl von Batteriekomponenten (3), aufweisend eine erste Batteriegehäusekomponente (10), eine zweite Batteriegehäusekomponente (20) und zumindest einen Batteriekomponentenhalter (30), der eine Vielzahl Aufnahmeeinrichtungen (40) zur Aufnahme der Batteriekomponenten (3) aufweist. Der Batteriekomponentenhalter (30) ist sandwichartig zwischen der ersten Batteriegehäusekomponente (10) und der zweiten Batteriegehäusekomponente (20) angeordnet und mit der ersten Batteriegehäusekomponente (10) und/oder mit der zweiten Batteriegehäusekomponente (20) stoffschlüssig verbunden. Die Erfindung betrifft ferner eine Batterie (4) aufweisend ein Batteriegehäuse (1) und ein Kraftfahrzeug aufweisend eine Batterie (4).
Resumen de: EP4718516A1
Provided is a technique to suppress a swell of the negative electrode. In the negative electrode disclosed herein, a negative electrode active material layer includes a first layer at a negative electrode current collector side and a second layer at a surface layer side. The first layer contains first Si-containing particles. The second layer contains second Si-containing particles. A Si content rate of the second Si-containing particles is smaller than a Si content rate of the first Si-containing particles. Each of the first Si-containing particles and the second Si-containing particles include a LiF coating layer. A second peak intensity ratio relating to a LiF of the second Si-containing particles is smaller than a first peak intensity ratio relating to the LiF of the first Si-containing particles. A difference between the first peak intensity ratio and the second peak intensity ratio is 0.050 to 1.00.
Resumen de: EP4718507A1
Provided is a negative electrode (60) that contains Si-containing particles (14, 18) and graphite particles (16), and causes less swelling when a secondary battery is repeatedly charged and discharged. The negative electrode of a secondary battery of the present disclosure includes a negative electrode current collector (62), and a negative electrode active material layer (64) supported by the negative electrode current collector. The negative electrode active material layer includes a first layer (64a) located on a surface layer part side, and a second layer (64b) located on a negative electrode current collector side. The first layer contains first graphite particles and first Si-containing particles (14). The second layer contains second graphite particles and second Si-containing particles (18). The content rate of Si in the first Si-containing particles is smaller than the content rate of Si in the second Si-containing particles. When a density of a molded body obtained by uniaxially pressurizing and molding 1 g of particles at 25°C and at 60 MPa into a tablet having a diameter of 20 mm is defined as a consolidation density, a consolidation density of the first Si-containing particles is 0.9 g/cm<sup>3</sup> or more and a consolidation density of the second Si-containing particles is less than 0.9 g/cm<sup>3</sup>.
Resumen de: EP4718541A1
A conductive material dispersion liquid according to embodiments of the present disclosure includes a conductive material including carbon nanotubes; a first dispersant including a cellulose polymer; and a second dispersant including a polyethylene oxide polymer. The dispersibility of a conductive material dispersion liquid including both the first dispersant and the second dispersant may be improved, and resistance characteristics of a secondary battery may be improved.
Resumen de: EP4718521A1
Provided is an anode material, a negative electrode plate and a secondary battery. The anode material includes a core body and a carbon coating layer that coats at least a partial surface of the core body, and the core body includes a matrix and an active substance. A 10-day gas production A of the anode material is less than or equal to 100 mL/kg, and the 10-day gas production A is measured by a drainage method. A residual carbon rate of the anode material is γ=m3−m2m1×100%, which is less than or equal to 20%. The secondary battery based on the above anode material has lower electrode plate expansion rate, great capacity and cycle stability.
Resumen de: EP4718604A1
A battery box and a battery pack, wherein the battery box comprises a box body (10) having a frame and a bottom plate (12), wherein the frame and the bottom plate (12) are enclosed to form an accommodating cavity (11), and the accommodating cavity (11) is used for accommodating cells (20); a bracket (30) disposed in the accommodating cavity (11), the bracket (30) is used for bearing the cells; and a supporting member for supporting the bracket (30), so as to form a pressure relief space (13) between the bracket (30) and the bottom plate (12).
Resumen de: EP4718608A1
A case of a battery pack, a battery pack, and a vehicle are provided. The case of the battery pack includes a side beam and a mounting block. A side wall of the side beam is provided with a mounting groove. At least a part of the mounting block being accommodated within the mounting groove. The mounting block is fixedly connected to the side beam, and is configured to be connected to an external device.
Resumen de: EP4718602A1
A beam structure, being configured for a battery pack, comprising an expansion-resistant beam (310), a first side of the expansion-resistant beam (310) being configured to abut against a battery cell of the battery pack; and a frame beam (320) being connected to a second side of the expansion-resistant beam (310), the frame beam (320) being located at a outermost side of a box body of the battery pack to serve as a side frame of the box body; wherein the expansion-resistant beam (310) and the frame beam (320) are integrally arranged.
Resumen de: EP4718609A2
Disclosed is a battery module with an improved structure so that gas or flame generated inside the battery module may be discharged stably. The battery module includes a cell assembly having at least one battery cell; a module case configured to accommodate the cell assembly in an inner space thereof and have a venting hole formed therein to discharge a venting gas generated from the cell assembly; and a venting unit provided at an outer side of the module case and configured to include an outer housing and an inner housing made of different materials, the venting unit being configured such that the venting gas discharged from the venting hole is introduced therein to flow along a surface of the inner housing and is discharged to the outside.
Resumen de: EP4718515A1
Provided is a negative electrode that contains Si-containing particles and graphite particles, and causes less swelling when a secondary battery is repeatedly charged and discharged. The negative electrode of a secondary battery of the present disclosure includes a negative electrode current collector, and a negative electrode active material layer supported by the negative electrode current collector. The negative electrode active material layer includes a first layer located on a surface layer part side, and a second layer located on a negative electrode current collector side. The first layer contains first graphite particles and first Si-containing particles. The second layer contains second graphite particles and second Si-containing particles. An aspect ratio of the first Si-containing particles is larger than an aspect ratio of the second Si-containing particles. The aspect ratio of the first Si-containing particles is 4.0 to 10.0. The aspect ratio of the second Si-containing particles is 1.0 to 3.0.
Resumen de: EP4718514A1
Provided is a technique to suppress a capacity maintenance rate reduction. A negative electrode disclosed herein includes a negative electrode active material layer including a first Si-containing particle and a second Si-containing particle. When an expansion rate S2 of the second Si-containing particle after an electrical charge A with respect to one before the electrical charge A is treated as 1, an expansion rate S1 of the first Si-containing particle after the electrical charge A with respect to one before the electrical charge A is more than 0.3 and not more than 0.9. When the mean particle diameter (D50) of the first Si-containing particle is treated as 1, the mean particle diameter (D50) of the second Si-containing particle is more than 0.1 and not more than 1.
Resumen de: EP4717516A1
The present application provides a thermal management apparatus for an electric vehicle, the thermal management apparatus includes a connecting apparatus, where the connecting apparatus includes: an air intake port provided on a first end of the connecting apparatus; an air outlet port provided on a second end of the connecting apparatus; and a channel provided within the connecting apparatus and used for gas flow, where one end of the channel is the air intake port and the other end of the channel is the air outlet port, where the air intake port is used to receive gas, a temperature of the gas flowing in through the air intake port being lower than an ambient temperature of an environment where the thermal management apparatus is located, and the gas flows out through the air outlet port after passing through the channel, and where the second end of the connecting apparatus is used to connect or contact a grille of the electric vehicle, an edge of the second end of the connecting apparatus being able to cover the grille of the electric vehicle, and a temperature of the gas flowing out through the air outlet port is lower than the ambient temperature, to cool a component inside the grille.
Resumen de: EP4718612A1
Disclosed are a battery pack and a vehicle including the same. A battery pack according to an embodiment of the present disclosure may include: a plurality of battery modules having a plurality of battery cells stacked therein; a pack case configured to store the plurality of battery modules; and a fastening member configured to fasten the pack case, wherein at least a portion of the fastening member is inserted and fixed into the pack case, and at least a portion thereof melts or burns when temperature rises.
Resumen de: EP4718522A1
A negative electrode (60) containing Si-containing particles (14, 16) and graphite particles (12) and being capable of suppressing capacity degradation when a secondary battery is repeatedly charged and discharged is provided. The negative electrode of a secondary battery of the present disclosure includes a negative electrode current collector (62), and a negative electrode active material layer (64) supported by the negative electrode current collector. The negative electrode active material layer contains graphite particles, first Si-containing particles (14), and second Si-containing particles (16). The content rate of Si in the first Si-containing particles is smaller than the content rate of Si in the second Si-containing particles. When a density of a molded body obtained by uniaxially pressurizing and molding 1 g of particles at 25°C and at 60 MPa into a tablet having a diameter of 20 mm is defined as a consolidation density, the consolidation density of the first Si-containing particles is 0.9 g/cm<sup>3</sup> or more, and that of the second Si-containing particles is less than 0.9 g/cm<sup>3</sup>.
Resumen de: EP4717393A1
A welding apparatus for manufacturing a secondary battery includes an electrode tab welding tool configured to weld a plurality of electrode tabs formed on an electrode plate forming an electrode assembly to form an electrode tab welding portion and a strip conductor welding tool configured to weld a strip conductor to the welded electrode tab to form a strip conductor welding portion. The strip conductor to be electrically connected to an external terminal, and the strip conductor welding tool and the electrode tab welding tool being configured to form the strip conductor welding portion and the electrode tab welding portion in areas not overlapping each other.
Resumen de: EP4718583A1
The present invention relates to a battery pack (100) and an electric device (1000). The battery pack (100) includes a battery cell (10), an insulating member (20) and a supporting component (30), a clearance port (31) is formed in the supporting component (30) and is arranged corresponding to an anti-explosion valve (11) of the battery cell (10), the insulating member (20) is arranged between the battery cell (10) and the supporting component (30), the insulating member (20) includes a body (221) and a shielding portion (222) connected to the body (221), the shielding portion (222) is arranged corresponding to the clearance port (31), and at least part of the shielding portion (222) is arranged as being capable of turning over relative to the body (221) under an action of gas of the anti-explosion valve (11), so as to shield at least part of an inner wall (311) of the clearance port (31).
Resumen de: EP4718614A1
Disclosed is a battery pack and a vehicle including the same. The battery pack includes a plurality of battery modules in which a plurality of battery cells are stacked; a pack case in which the plurality of battery modules are accommodated; and a fastening member configured to fasten the pack case, wherein at least a portion of the fastening member is directly fastened to the pack case and at least a portion thereof melts or burns when temperature rises.
Resumen de: EP4718599A1
The present disclosure relates to a pack housing comprising a heat sink, a pair of side frames coupled to both side surfaces of the heat sink, and a front frame and a rear frame coupled to the front and rear of the heat sink respectively, wherein, in one example, the heat sink and the pair of side frames are integrally formed by extrusion molding, and accordingly, no separate bonding surface is formed between the heat sink and the pair of side frames.
Resumen de: EP4718569A2
Gegenstand der Erfindung ist eine Aufnahme (2) zum Befüllen mindestens einer Elektrochemischen-Zelle (0), insbesondere zur Durchführung einer Infiltration der Kathode mit einer Salzschmelze bei erhöhter Temperatur und/oder unter Inertgas, vorzugsweise unter Ausschluss von Feuchtigkeit und/oder Sauerstoff, wobei die Aufnahme (2) zur Aufnahme der Elektrochemischen-Zelle eine innere Oberfläche (2.3), insbesondere mit mindestens einer Seitenwand (2.4) und optional einem Boden (2.5) aufweist und die Aufnahme mit innerer Oberfläche eine obere Öffnung (2.1) zur Aufnahme, d.h. Positionierung der Elektrochemischen-Zelle (0) in der Aufnahme (2), aufweist, wobei die innere Oberfläche der Aufnahme (2) aus einem gegenüber Chlorid-Ionen beständigem Material ist, bevorzugt aus einem gegenüber Chlorid-Ionen beständigen Material bei erhöhter Temperatur. Des Weiteren ist Gegenstand der Erfindung eine Vorrichtung und ein System zum Befüllen mindestens einer Elektrochemischen-Zelle (0) und zum Verschließen dieser Zelle, insbesondere zum hermetisch temporären oder hermetisch dauerhaften Verschließen.
Nº publicación: EP4718513A1 01/04/2026
Solicitante:
PRIME PLANET ENERGY & SOLUTIONS INC [JP]
Prime Planet Energy & Solutions, Inc
Resumen de: EP4718513A1
The negative electrode of the secondary battery includes a negative electrode current collector and a negative electrode active material layer that is supported by the negative electrode current collector and that contains a negative electrode active material. The negative electrode active material layer includes an upper layer and includes a lower layer. The negative electrode active material contains at least a graphite particle, and a Si-containing particle in which a carbon and a Si are compounded to be composite. A response area size of the negative electrode active material contained in the upper layer is smaller than a response area size of the negative electrode active material contained in the lower layer, and a Si amount of a first Si-containing particle contained in the upper layer is smaller than a Si amount of a second Si-containing particle contained in the lower layer.
BOPI
Sede Electrónica
