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1111
resultados
Última actualización
26/08/2025 [07:12:00]
Resultados 375 a 400 de 1111
Resumen de: EP4603518A1
This application relates to a polymer, a conductive slurry, a positive electrode plate, a secondary battery, and an electric apparatus. The polymer includes a structural unit represented by formula (1) and structural unit(s) represented by formula (2), where in formula (2), R1, R2, and R3 are each independently selected from a hydrogen atom, a halogen atom, or a substituted or unsubstituted C1-C10 alkyl group. The polymer in embodiments of this application exhibits improved dispersion performance. When the polymer is applied in a secondary battery, especially in the preparation of a conductive slurry, it can act as a dispersant, making the particles in the slurry less likely to agglomerate and able to disperse evenly, thereby ensuring the electrochemical performance of the secondary battery.and
Resumen de: EP4604266A1
A heat exchanging assembly (100), a battery module (300), a battery (400), and an electrical device (500) are provided. The heat exchanging assembly (100) includes a heat exchanging plate (10). The heat exchanging plate (10) has a heat exchanging flow channel (11). The heat exchanging plate (10) has a discharge structure (12). The discharge structure (12) is configured to correspond to a pressure relief mechanism (201) of a battery cell (200). The heat exchanging flow channel (11) is arranged on at least one side of the discharge structure (12) in a width direction of the heat exchanging plate (10). The heat exchanging flow channel (11) is configured to exchange heat with the battery cell (200).
Resumen de: EP4603319A1
The present invention relates to a handling support (2) suitable for handling thermal conduction plates (1) of battery cells. The thermal conduction plates (1) are plates adapted to transfer heat, either for cooling or heating, to or from electric energy storage cells in batteries. The installation of these plates (1) requires precise handling for the final positioning thereof inside the battery and the handling may furthermore consist of the handling of a large number of plates (1) either one by one or in groups of plates (1). The preferably automated handling requires handling means (2) that allow picking up and suitably positioning each of the thermal conduction plates (1). According to the invention, these means (2) are formed by a support part (2) which is coupled to the thermal conduction plate (1).
Resumen de: EP4604259A1
A computer system (122) for thermal runway detection in an electrical energy storage device (102) comprising: a high voltage electrical energy storage device (102), a low voltage electrical energy storage device (104), thermal runaway detection sensors (1061, 106n) configured to detect thermal runaway events in cells or modules of the high voltage electrical energy storage device, the low voltage electrical energy storage (104) supplying power to the thermal runaway detection sensors (106) via a first power supply line (108), a first switch (110) in the first power supply line (108) between the low voltage electrical energy storage device and the thermal runaway detection sensors, a second switch (114) in a power supply line between the high voltage electrical energy storage device and the thermal runaway detection sensors, the computer system comprising processing circuitry (120) configured to: in response to a first condition, open the second switch (114) and engage the first switch (110), whereby the thermal runaway detection sensors (106) are powered by the low voltage electrical energy storage device (104), and in response to a second condition, open the first switch (110) and engage the second switch (114), whereby the thermal runaway detection sensors are powered by the high voltage electrical energy storage device (102).
Resumen de: EP4604191A1
The disclosure provides a negative active particle and a preparation method therefor, a negative sheet, and a cell. Embodiments of the disclosure provide a negative active particle. The negative active particle has multiple pores, and an aspect ratio α of each of the multiple pores satisfies 1 ≤ α ≤ 8. When the negative active particle provided in embodiments of the disclosure is applied to a cell, the cell has a high cycling capacity retention rate.
Resumen de: EP4604313A1
Provided is a battery, including first and second battery cells, a packaging film and a separator. The packaging film includes first and second film housings, the separator is disposed between the first and second film housings, the first and second film housings are separated by the separator, and first and second accommodating cavities that are arranged in parallel are formed by the separator. The first battery cell is accommodated within the first accommodating cavity, and the second battery cell is accommodated within the second accommodating cavity. A plurality of sealing edges are formed by the first and second film housings and the separator, and the plurality of sealing edges include a first sealing edge where tabs of the first and second battery cells are located. A thickness of a hot melt adhesive on the first sealing edge at a side, close to the separator, of a tab of each battery cell of at least one of the first and second battery cells is greater than a thickness of a hot melt adhesive on the first sealing edge at a side, away from the separator, of the tab of the battery cell, which ensures that a certain distance is maintained between a packaging film and a non-separator side of a tab after sealing, so as to reduce a risk of contact short circuits at the tab, thereby improving a safety of a battery.
Resumen de: EP4604201A1
The present disclosure provides a positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery and an electric device. The positive electrode active material comprises: a core; and a carbon coating layer which covers at least part of the surface of the core, the molar ratio of sp<sup>3</sup> hybridized carbon atoms to sp<sup>2</sup> hybridized carbon atoms in the carbon coating layer being not less than 0.5.
Resumen de: EP4604247A1
The present invention provides a solid-state battery that more sufficiently suppresses an increase in interface resistance and a decrease in discharge capacity due to the use in a high-temperature environment. The present invention relates to a solid-state battery including: a positive electrode layer; a negative electrode layer; and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, in which the positive electrode layer includes a positive electrode active material having a layered rock salt type structure and an oxide having a garnet type structure, the positive electrode active material contains at least one of Mg (magnesium) or Al (aluminum), and the oxide does not contain Al (aluminum).
Resumen de: EP4604272A1
A heat exchange component, a box, a battery, and an electrical apparatus are provided. The heat exchange component applied to the battery includes a body. The body includes a plurality of chambers extending through the body in a second direction, the plurality of chambers being arranged along a first direction. The plurality of chambers comprise an edge chamber located at an end of the body in the first direction, and a non-edge chamber located at a side of the edge chamber toward a center of the body. A cross-sectional area of the edge chamber perpendicular to the second direction is smaller than that of the non-edge chamber perpendicular to the second direction, so as to reduce the capacity of a heat exchange medium in the edge chamber, thereby mitigating the problem that the reliability of the battery is reduced by short circuits in the battery caused by condensation of air moisture into droplets due to the excessively low temperature of the body at the edge chamber.
Resumen de: EP4603192A1
Embodiments of the present application provide a coating device for coating electrode plates and a battery production system. The coating device includes: a first die head and a second die head connected with each other, wherein a flow channel is formed between the first die head and the second die head, and the flow channel includes a material inlet and a material outlet; and an adjusting member, wherein at least part of the adjusting member is detachably arranged in the flow channel, the adjusting member is used to adjust a size of a material along a width direction when the material is discharged from the material outlet, and the width direction is perpendicular to a stacking direction of the first die head and the second die head, and perpendicular to a direction from the material inlet to the material outlet. The coating device for coating electrode plates and the battery production system in the embodiments of the present application can improve the efficiency of electrode plate coating.
Resumen de: EP4603325A1
Disclosed in the present application are a battery self-heating system, an electrical device, and a vehicle. The battery self-heating system comprises a first battery, a second battery, a converter, a motor, a first switch device and a second switch device, the first battery and the second battery being connected through the first switch device, a negative electrode of the first battery and a negative electrode of the second battery being both connected to a first terminal of the converter, and the second switch device being arranged between the negative electrode of the first battery and the first terminal of the converter. One of a positive electrode of the first battery and a positive electrode of the second battery is connected to the motor, and the other one is connected to a second terminal of the converter. Thus, by means of controlling the motor and the converter, the first battery and the second battery can be alternately charged and discharged, and further self-heating of the first battery and the second battery can be performed by using oscillating current generated by alternate charging and discharging, so that compared with external heating, the present application can effectively raise heating efficiency, and does not need addition of an extra heating apparatus, thus achieving lower costs.
Resumen de: EP4604269A1
A cooling system (100) for a battery pack (200), e.g. of a vehicle, comprising:- a liquid coolant supply conduit (101),- a cooling conduit (102) configured to carry a liquid coolant for cooling of the battery pack, wherein the cooling conduit is configured to be fluidly connected to the liquid coolant supply conduit at a joint (103), such that liquid coolant can pass between the liquid coolant supply conduit and the cooling conduit via an interior (104) of the joint,- a monitoring circuit (120) comprising an electrically conducting device (121) disposed externally of the j oint, wherein the monitoring circuit is configured to detect a leak of the liquid coolant at the joint via the electrically conducting device, such as by the electrically conducting device comprising a discontinuity (122) configured to be overbridged by a liquid coolant droplet leaking from the joint.
Resumen de: EP4603727A1
The invention relates to an assembly (10; 10a), having an extruded profile (14) formed from aluminum, in which at least one channel (20) is formed in the direction of a longitudinal axis (18) of the extruded profile (14), having a closing device (35; 35a) for sealing an end-face end region (22) of the extruded profile (14), wherein the closing device (35; 35a) protrudes into an opening (24) of the extruded profile (14) formed in the end-face end region (22) of the extruded profile (14).
Resumen de: WO2024079430A1
The subject matter of the present invention is a method for producing such components, the components that can be obtained by this method and the use of these components in the production of a liquid organic electrolyte electrochemical cell.
Resumen de: EP4604274A1
The present application relates to the technical field of batteries, and provides a battery and an electrical device. The battery comprises a battery pack, a first heat management component and a heat insulation member. The battery pack comprises a plurality of battery cells. In a first direction, the first heat management component is arranged on one side of the battery pack, and the first heat management component is configured to manage the temperature of the battery pack. In the first direction, the heat insulation member is arranged on the side of the first heat management component facing away from the battery pack. The heat insulation member is arranged on the first heat management component, and is located on the side of the first heat management component facing away from the battery pack in the first direction, so as to reduce heat exchange between the first heat management component and other components or the outside, such that the energy loss of the first heat management component can be reduced, thereby ensuring the heat management capability of the first heat management component on the battery cells; thus, the temperature of the battery cells can be effectively adjusted to reduce the temperature rise phenomenon of the battery cells, thereby improving the use performance of the battery and prolonging the service life of the battery.
Resumen de: EP4603786A1
A measuring jig for a battery module that includes a support for disposing across the battery module, a plurality of fastening parts for fastening with a measuring instrument, and fixing plates for connecting to the support and to support the measuring jig on the battery module.
Resumen de: EP4604218A1
The present application provides a polymer, electrode plate and related battery cell, battery and electrical device. The polymer satisfies: 5 ≤ m/n ≤ 1000, in which n represents a mass of the polymer, in grams, and m represents a mass, in grams, of the first substance that is obtained by steps of adding the polymer to a first solvent at a first temperature to form a polymer system, allowing the polymer system to stand for 8 hours at the first temperature and for ≥24 hours at a second temperature; and then filtering the polymer system through a 200-mesh screen, to obtain remains on the screen as the first substance and wherein the first temperature is higher than the second temperature. When polymer is applied to battery cells, it can improve the cycle performance of the battery cells.
Resumen de: WO2024081684A2
Lithium-sulfur battery cathodes with a graded structure are provided and can include an actively electro-catalyzing and polysulfide-trapping system to improve sulfur utilization and capacity retention, as well as methods of fabricating the same and methods of using the same. The graded structure Li-S cathode can be prepared using economic and scalable synthesis and coating methods.
Resumen de: CN120019519A
Disclosed herein is a battery comprising: a positive current collector; a positive electrode; an electrolyte; wherein the electrolyte includes a solvent, wherein the solvent includes at least one of a fluorinated silicone and a lithium metal; and a metal current collector, where the metal current collector comprises lithium plated on the metal current collector, where a layer is coated over the lithium-plated metal current collector, where the layer comprises at least nitrogen and fluorine.
Resumen de: EP4604224A1
According to the present invention, as a usage time of a secondary battery increases, a deformable part may be deformed to suppress deformation near an end of a positive electrode, thereby preventing an adjacent separator from being damaged.In an electrode assembly having a structure, in which a first electrode sheet, a second electrode sheet, and a separator disposed between the first electrode sheet and the second electrode sheet are wound together according to the present invention, the first electrode sheet may include a deformable part disposed to be spaced a predetermined distance from one end of the second electrode sheet in a winding direction and having a shape that protrudes toward a central portion with respect to the wound state.
Resumen de: EP4603519A1
The present invention relates to: a copolymer a monomer unit comprising a heterocyclic structure of 2 to 6 carbon atoms containing at least one oxygen atom in an amount of 1% to 40% by weight, based on 100% by weight of the total weight of the copolymer; and core-shell particles, a slurry composition, a separator, and a secondary battery comprising same.
Resumen de: EP4604200A1
The present invention relates to a negative electrode for a lithium rechargeable battery and a lithium rechargeable battery including the same, which comprises a negative electrode active material including a natural graphite and a coating layer disposed on a surface of the natural graphite, and an area ratio of the orientation peak intensity of the XRD pattern (I110/I004) is 0.08 to 0.16 at a compressed density of 1.40 g/cc to 1.80 g/cc. By using the negative electrode of the present invention in a lithium rechargeable battery, the charge/output characteristics of the lithium rechargeable battery can be improved.
Resumen de: US2024128783A1
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: US2024120473A1
Electrochemical cells and methods of preventing overheating of the same are disclosed. An electrochemical cell may include a cathode and an anode. The anode may include a lithium alloy. The anode may be configured to reduce a maximum rate of ion transfer between the anode and the cathode in response to an occurrence of a fault condition. The lithium alloy may comprise at least 70 weight percent lithium to 99 weight percent lithium.
Nº publicación: EP4602629A2 20/08/2025
Solicitante:
CENTRE NAT RECH SCIENT [FR]
UNIV LILLE [FR]
UNIV NANTES [FR]
UNIV POLYTECHNIQUE HAUTS DE FRANCE [FR]
CENTRALE LILLE INST [FR]
Centre National de la Recherche Scientifique,
Universit\u00E9 de Lille,
Nantes Universit\u00E9,
Universite Polytechnique Hauts-de-France,
Centrale Lille Institut
Resumen de: WO2024079421A2
A microstructured substrate comprising a main body and a plurality of elongated elementary microstructures extending from the main body, wherein the microstructured substrate comprises a plurality of nanowires positioned on at least one area of the surface of the main body and on the surface of the elementary microstructures that extend from the main body over said area.
BOPI
Sede Electrónica
