Alerta

COMPOSITE DE NANOTUBES DE CARBONE ET DE POLYMÈRE POUR ÉLECTRODES DE BATTERIE TRAITÉES À SEC

Resumen de: BE1032448A1

Un procédé sans solvant utilise un composite comprenant des nanotubes de carbone et un polymère pour préparer des compositions et des électrodes pour les batteries lithium-ion. Les nanotubes de carbone dans le composite peuvent être multifonctionnels, fournissant deux ou plusieurs caractéristiques souhaitables, agissant, par exemple, comme un additif de carbone conducteur, comme un agent de traitement, par exemple, de fibrillation, et/ou comme un renforcement mécanique. Le composite peut être combiné avec un matériau électroactif et liant ; le liant peut être traité, par exemple, fibrillé, en présence des nanotubes de carbone dans le composite. La composition obtenue peut être transformée en un film qui peut être appliqué sur un substrat approprié pour former une électrode

LIQUID INJECTION DEVICE AND PRODUCTION LINE

Resumen de: EP4625686A1

Provided are a liquid injection device and a production line. The liquid injection device comprises a vacuumizing air path (1), a first-level cup (2), a second-level cup (3), a plurality of injection paths (4), and a plurality of liquid flowing assemblies (5). The first-level cup (2) is formed with a plurality of buffer cavities that are isolated from each other; the second-level cup (3) is formed with a plurality of liquid injection cavities that are isolated from each other; the liquid injection cavities are all communicated with the vacuumizing air path (1); each injection path (4) is communicated with one buffer cavity; the liquid flowing assemblies (5), the buffer cavities, and the liquid injection cavities are arranged in a one-to-one correspondence manner; each liquid flowing assembly (5) comprises a liquid flowing channel (51) and a first switch element (52); the liquid flowing channel (51) is communicated with one buffer cavity and one liquid injection cavity; and the first switch element (52) is arranged in the liquid flowing channel (51) to selectively open or close the liquid flowing channel (51). Through the vacuumizing air path (1), the first-level cup (2), the second-level cup (3), the plurality of injection paths (4), and the plurality of liquid flowing assemblies (5), liquid preparation and vacuumizing can be carried out simultaneously, which can shorten the liquid injection time. One liquid injection device can inject liquid into a plurality of battery cells

BATTERY MODULE AND BATTERY PACK COMPRISING SAME

Resumen de: EP4625683A1

A battery module includes a battery cell stack in which a plurality of battery cells is stacked, a module case for accommodating the battery cell stack, a busbar frame disposed on one side of the battery cell stack, one or more busbars disposed on the busbar frame, and a pad disposed on the busbar. The battery module relieves tension applied to electrode leads and prevents an electrode tab from breaking since the pad coupled to the busbar is compressed when a battery cell swells to cause the busbar to move.

DEVICE INCLUDING BATTERY PACK

Resumen de: EP4625666A1

A device of the present disclosure includes: a battery pack including a lower frame in which a battery module is accommodated and an upper cover for covering the lower frame; a device housing positioned on the battery pack; and a smoke control boundary wall disposed between the battery pack and the device housing.

ELECTROACTIVE MATERIALS FOR METAL-ION BATTERIES

Resumen de: EP4625541A2

The invention relates to a particulate material comprising a plurality of composite particles, wherein the composite particles comprise: (a) a porous carbon framework comprising micropores and mesopores having a total pore volume of at least 0.6 cm³/g, where the volume fraction of micropores is in the range from 0.1 to 0.9 and the volume fraction of pores having a pore diameter no more than 20 nm is at least 0.75, and the porous carbon framework has a D₅₀ particle size of less than 20 µm; (b) silicon located within the micropores and/or mesopores of the porous carbon framework in a defined amount relative to the volume of the micropores and/or mesopores.

END COVER ASSEMBLY, ENERGY-STORAGE APPARATUS, AND ELECTRICITY-CONSUMPTION DEVICE

Resumen de: EP4625636A1

An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided in the present disclosure. The end cover assembly includes an upper cover, a lower plastic member, a first terminal-post, and a first pressing ring. The upper cover includes a first protrusion and defines a first mounting recess. The lower plastic member defines a first accommodating recess. The lower plastic member is stacked with and connected to the upper cover. At least a part of the first accommodating recess is positioned in the first mounting recess. The first terminal-post passes through the upper cover and the lower plastic member. The first pressing ring is sleeved on the first terminal-post and fixedly connected to the first terminal-post. At least a part of the first pressing ring is positioned in the first accommodating recess and fixed connected to a recess wall of the first accommodating recess. In a direction perpendicular to a thickness direction of the end cover assembly, an orthographic projection of the first pressing ring on the lower plastic member covers an orthographic projection of the first protrusion on the lower plastic member.

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: EP4625537A1

A secondary battery including a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode material layer disposed on at least one surface of the negative electrode current collector. The negative electrode material layer includes a negative electrode active material, a binder, and a conductive agent. The negative electrode active material includes a carbon material and silicon-carbon composite particles. Based on a mass of the negative electrode material layer, a mass percentage of silicon element is 4.4% to 10.5%, and a mass percentage of carbon element is 85% to 90%. A powder conductivity of the negative electrode material layer is 8 S/m to 15 S/m.

PERFORMANCE ANALYSIS METHOD OF ENERGY STORAGE SYSTEM AND RELATED DEVICE

Resumen de: EP4625757A1

A performance analysis method of an energy storage system and a related device are disclosed in the present application, the method includes: processing at least one data file of charging and discharging of the energy storage system to obtain target charging and discharging data; and determining a start node and an end node in a charging and discharging cycle of the energy storage system according to the charging and discharging cycle data of the energy storage object(s) in the target charging and discharging data, thereby accurately analyzing the performance of the energy storage system to avoid misreading or omission and increase the efficiency of processing the charging and discharging data.

PRESSURE RELIEF LIQUID COOLING ASSEMBLY

Resumen de: EP4625617A1

A pressure relief liquid cooling assembly (100) includes a first liquid cooling member (110) and a second liquid cooling member (120) arranged opposite to each other. The first liquid cooling member (110) is provided with a first liquid cooling flow channel (111). The second liquid cooling member (120) is provided with a second liquid cooling flow channel (121). A gap is provided between the second liquid cooling member (120) and the first liquid cooling member (110) to form a first pressure relief channel (130). The first liquid cooling member (110) is provided with at least one first pressure relief hole (112) each penetrating through the first liquid cooling member (110) along a first direction (X) and communicated with the first pressure relief channel (130). The first pressure relief hole (112) is communicated with an explosion-proof valve of at least part of battery cells in a battery module (300).

BATTERY PACK INCLUDING BATTERY MODULE AND VEHICLE INCLUDING SAME

Resumen de: EP4625655A1

Disclosed is a battery pack including battery modules and a vehicle including the battery pack. The battery pack includes a plurality of battery modules, each of which includes a battery cell stack in which a plurality of battery cells are stacked, and a module case configured to accommodate the battery cell stack and having at least one movement hole through which flame and gas move; a pack case configured to accommodate the plurality of battery modules so that an exhaust hole is formed between the battery modules and the pack case; and a flame/gas propagation preventing member disposed between the battery modules and the pack case and configured to prevent flame or gas generated from the battery cell from propagating.

SECONDARY BATTERY

Resumen de: EP4625640A1

A secondary battery according to an embodiment of the present invention may include: an electrode assembly; a frame that surrounds a circumference of the electrode assembly so as to accommodate the electrode assembly, and includes an insulation material; and a pair of exterior sheets sealed to the frame at both sides of the frame, respectively, so as to cover the electrode assembly. A groove facing the outside of the frame may be defined in the frame so that a sealing surface area between the exterior sheet and the frame is increased.

MIXTURE, SHEET, ELECTROCHEMICAL ELEMENT, AND POWER STORAGE DEVICE

Resumen de: EP4625568A1

Provided are a mixture, a sheet, an electrochemical element, and a power storage device which can enhance the diffusibility of substances at the interface between an oxide and an electrolytic solution. A mixture (10) contains an oxide (19) and an electrolytic solution, wherein the electrolytic solution is formed of an electrolytic salt dissolved in a sulfone compound represented by a chemical formula (1). In the chemical formular (1), each of R₁ and R₂ independently represents a C1-C4 alkyl group, a C1-C4 alkenyl group, or a C1-C4 halogenated alkyl group, or two of the alkyl group, alkenyl group, and halogenated alkyl group are bonded to each other to form a ring structure. The self-diffusion coefficient of at least one component contained in the electrolytic solution in contact with the oxide, as measured through pulsed field gradient nuclear magnetic resonance spectroscopy, is equal to or greater than 6 times the self-diffusion coefficient of the component contained in the electrolytic solution which is not in contact with the oxide, measured at the same temperature as that in measurement of the former self-diffusion coefficient.

BATTERY MATERIAL PRODUCTION DEVICE, BATTERY MATERIAL PRODUCTION SYSTEM, AND BATTERY MATERIAL PRODUCTION METHOD

Resumen de: EP4625503A1

This battery material production device (100) comprises a stretching device (160), a monitoring device (180), and a control device (200). The stretching device (160): receives a sheet-form molded article, which is obtained by kneading a base and a filler, at a first conveyance speed from a sheet-forming device (140) that continuously delivers the molded article; and delivers the molded article at a second conveyance speed higher than the first conveyance speed, thereby reducing the thickness of the molded article. The monitoring device (180): monitors at least one of tensile force, distortion, and thickness pertaining to the molded article at a plurality of different positions in order to determine stretching conditions under which voids will not form in the molded article, thus generating monitoring data; and outputs the monitoring data to the control device (200), which controls the stretching conditions.

A BATTERY PACK

Resumen de: CN120266320A

The invention relates to a battery pack (10). The battery pack (10) comprises a shell (20) and a plurality of battery units (12) arranged in the shell (20). A plurality of conduits (60) are disposed at the bottom of the housing (20) and extend out of the housing (20). The plurality of conduits (60) is configured to enable a dielectric coolant (40) to flow through the plurality of conduits (60). The battery pack (10) also includes a pump (70) mounted to the housing (20). The pump (70) is configured to circulate the dielectric coolant (40) between the housing (20) and the plurality of conduits (60). The plurality of conduits (60) is configured to dissipate heat from the dielectric coolant (40) into the ambient atmosphere.

PROCESS OF PREPARATION OF DRY ELECTRODE AND IMPLEMENTATIONS THEREOF

Resumen de: WO2024110976A1

The present disclosure provides a process for preparing an electrode, the process comprising: (a) mixing an active material, and a conductive additive, optionally with a first binder to obtain a first mixture; (b) blending a fibrillating binder with the first mixture, followed by high shear mixing to obtain a second mixture; and (c) quenching the second mixture and calendering to obtain the electrode.

BATTERY PACK AND WORKING VEHICLE

Resumen de: EP4625600A1

Provided is a battery pack that is used in a working vehicle where an operator can easily get access to an electric component housing chamber in which an electric component is housed thus enhancing the maintenance property of the electric component. A battery pack includes a battery module, electric components, and a housing that houses the battery module and the electric components. The housing includes an electric component housing chamber that houses the electric components. The electric component housing chamber includes: an opening portion that enables an operator to get access to the electric component housing chamber from the outside; and a maintenance cover that is configured to be capable of closing the opening portion. The maintenance cover is mounted on the housing by a hinge.

APPARATUS FOR DRYING ELECTRODE SHEET AND METHOD FOR DRYING ELECTRODE SHEET USING SAME

Resumen de: EP4625505A1

An electrode sheet drying device may include a drying oven, a plurality of spray nozzles, a flow path configured to guide the water to the plurality of spray nozzles, and a pump capable of moving the water through the flow path. The plurality of spray nozzles may be disposed within the drying oven, and disposed along a width direction of an electrode sheet, and spray water onto the electrode sheet. The flow path may include one or more positive temperature coefficient (PTC) heaters, which may heat the water to be sprayed onto the electrode sheet, such that water above a certain temperature may be supplied to the electrode sheet. The water sprayed onto the electrode sheet may prevent cracking and wrinkling from occurring in the non-coated part, thereby improving stability of the electrode.

DETECTION APPARATUS AND DETECTION METHOD FOR BATTERY CELL DETECTION

Resumen de: EP4624909A1

A detection device and a detection method for detecting a battery cell are provided. The detection device includes a supporting mechanism, a rotary mechanism, a conveying mechanism, and a detection mechanism. The rotary mechanism is provided on the supporting mechanism, and the rotary mechanism includes a rotary bracket provided on the supporting mechanism and a rotary disk rotatable circumferentially relative to the rotary bracket; the conveying mechanism passes through the rotary disk, and the conveying mechanism is configured to convey a battery cell; the detection mechanism is provided on the rotary disk, and the detection mechanism includes a radiation source and a detector, the radiation source and the detector are configured to detect the battery cell on the conveying mechanism, and the radiation source and the detector are rotatable circumferentially on the rotary disk.

POSITIVE ELECTRODE, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING POSITIVE ELECTRODE

Resumen de: EP4625529A1

Disclosed is a positive electrode and a lithium secondary battery including the positive electrode, the positive electrode including a positive electrode active material and a carbonate-containing compound containing a fluorine-containing functional group in an active material layer. In a C 1s spectrum by X-ray photoelectron spectroscopy (XPS) analysis, intensities of peaks satisfy a certain ratio, and, since the positive electrode has excellent resistance characteristics and suppresses degradation, life characteristics may be improved. The lithium secondary battery has improved resistance characteristics, and since degradation of the positive electrode and negative electrode may be suppressed to prevent a sudden drop in capacity, life characteristics may also be improved.

BATTERY PACK COVER PLATE, BATTERY PACK, AND VEHICLE

Resumen de: EP4625661A1

This application discloses a battery pack cover, a battery pack, and a vehicle. The battery pack cover (100) includes: a first substrate (10), where a thickness of the first substrate (10) is a1, in mm, and a yield strength of the first substrate (10) is b1, in MPa; and a second substrate (20), where the second substrate (20) is a composite material plate, the second substrate (20) is located on a surface on a side of the first substrate (10), a thickness of the second substrate (20) is a2, in mm, and a tensile strength of the second substrate (20) is b2, in MPa, where the first substrate (10) and the second substrate (20) satisfy the following condition: 290 ≤ a1·b1 + a2·b2·c1 ≤ 1200, where c1 is a constant.

NEGATIVE ELECTRODE SHEET, LITHIUM BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4625524A1

A negative electrode sheet, including a negative electrode current collector as well as a capacity providing layer, a conductive bonding layer, and a fast ion conductor layer which are sequentially stacked on at least one side surface of the negative electrode current collector, where the capacity providing layer comprises a first negative electrode active material, a first binder, and a first conductive agent, the fast ion conductor layer comprises a carbon active material, a lithium superionic conductor, a second binder, and a second conductive agent, and the specific capacity of the first negative electrode active material is greater than that of the carbon active material. A lithium battery, comprising the negative electrode sheet. An electric device, comprising the lithium battery having the negative electrode sheet.

BINDER, PREPARATION METHOD THEREFOR, AND BATTERY

Resumen de: EP4625671A1

A binder and a preparation method therefor, and a battery are provided. The binder includes a bonding material particle. The bonding material particle includes a core and a shell. The core includes a crystalline polymer. The shell wraps at least a part of an outer surface of the core, and the shell includes an amorphous polymer.

THERMAL MANAGEMENT COMPONENT, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4625624A1

The present application discloses a thermal management component, a battery, and an electrical device. The thermal management component comprises a bottom wall and two side walls, the two side walls are oppositely arranged on two sides of the bottom wall in a first direction, and the bottom wall and the two side walls jointly define an accommodating cavity used for accommodating a battery cell; a first flow channel is formed in the bottom wall, second flow channels are respectively formed in the two side walls, and the first flow channel and the second flow channels are used for containing a heat exchange medium so as to adjust the temperature of the battery cell, wherein transition parts are arranged at bending positions of the bottom wall and the two side walls, a communication flow channel is formed in each transition part, and the first flow channel is communicated with the second flow channels through the communication flow channels. The technical solution provided by the present application can improve the reliability of batteries.

ENERGY PROCESSING APPARATUS AND VEHICLE

Resumen de: EP4625749A1

An energy processing apparatus and a vehicle. The apparatus comprises a first battery, a second battery, at least one phase of first bridge arm, at least one phase of first inductor, and a controller, wherein a positive electrode of the second battery is connected to a first end of each phase of first bridge arm, and a negative electrode of the second battery is respectively connected to a second end of each phase of first bridge arm and a negative electrode of the first battery; a first end of each phase of first inductor is connected to the midpoint of the corresponding first bridge arm, and a second end of each phase of first inductor is connected to a positive electrode of the first battery; and the controller is connected to each phase of first bridge arm, and is used for controlling the first bridge arm in a first preset state, such that the first battery and the second battery alternately charge and discharge to realize self-heating of the first battery and the second battery.

INFRARED HEATING PANEL, INFRARED BAKING DEVICE, AND INFRARED BAKING SYSTEM

Nº publicación: EP4624058A1 01/10/2025

Solicitante:

BYD CO LTD [CN]
BYD Company Limited

Resumen de: EP4624058A1

An infrared baking system, comprising an infrared baking device (1000) comprising infrared heating panels (100). The infrared baking device (1000) comprises the infrared heating panels (100). Each infrared heating panel (100) comprises a base layer (10) and an infrared radiation layer (20). The infrared radiation layer (20) is arranged on the surface of the base layer (10). The infrared radiation layer (20) comprises a main region (24) and edge regions (25) connected to two opposite sides of the main region (24). The thickness of each edge region (25) is greater than that of the main region (24).