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ELECTRODE SHEET, BATTERY CELL, AND ELECTRIC DEVICE

Resumen de: EP4773188A1

0001 The present application provides an electrode plate, a battery cell, and an electric device, the electrode plate including a current collector, a first transition layer, a second transition layer, two active substance layers, a first conductive member, and a second conductive member. The current collector includes a support layer, a first conductive layer, and a second conductive layer. The current collector further includes a first segment and a second segment. The first transition layer is located in the first segment. The second transition layer is located in the first segment. One active substance layer is disposed on the first transition layer, and the other active substance layer is disposed on the second transition layer. The first conductive member is disposed on the first conductive layer. The second conductive member is disposed on the second conductive layer. The first conductive member and the second conductive member are welded to form a plurality of weld marks, where at least one weld mark is further connected to the current collector. The current collector further includes a first section and a second section, where a projection of an edge section of the active substance layer adjacent to the weld marks coincides with a projection of the first section, and the second section is provided with the weld marks. The tensile strength of the first section is less than the tensile strength of the second section. The above electrode plate can improve safety.

SECONDARY BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4773400A1

The present application provides a secondary battery and an electric apparatus. The secondary battery includes an electrolyte solution and a separator, the separator including a base film and a coating located on at least one side of the base film, where the secondary battery satisfies: 0.5≤G×H/(10×σ)≤13, G is a Gurley value of the base film, with a unit of s, H is a thickness of the coating, with a unit of µm, and σ is an electrical conductivity of the electrolyte solution at 25 °C, with a unit of mS/cm. The secondary battery can achieve both safety and fast charging performance.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

Resumen de: EP4773364A1

An electrochemical device (100) and an electronic device are provided. The electrochemical device (100) includes an electrode assembly (10) and an electrolyte, where the electrode assembly (10) includes an electrode tab (20), and an electrode tab sealant (30) is provided on the electrode tab (20). In a direction perpendicular to an extension direction of the electrode tab (20), a width of the electrode tab sealant (30) exceeds a maximum width of the electrode tab (20) by A mm, where 1.8 ≤ A ≤ 2.6. The electrolyte includes a linear ester, where based on a mass of the electrolyte, a mass percentage of the linear ester is B%, with A/B meeting 0.0215 ≤ A/B ≤ 0.058. The inclusion of the linear ester in the electrolyte, along with controlling the values of A and A/B within the above ranges, can address the issue of high solubility of the electrode tab (20) sealant caused by high content of the linear ester, reduce the content of impurity in the electrolyte, facilitate the transport of ions in the electrolyte, and reduce side reactions in the electrolyte, thereby improving the cycling performance and rate performance of the electrochemical device (100).

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4773351A1

The present application provides a battery cell, a battery, and an electrical device. The battery cell includes a casing and an electrode assembly. The casing includes a first casing wall and a second casing wall which are oppositely arranged in a first direction, and an area of a second outer surface of the second casing wall is smaller than or equal to an area of a first outer surface of the first casing wall. The electrode assembly is accommodated in the casing and includes a body part and a first tab, the body part is located between the first casing wall and the second casing wall in the first direction, the first tab extends out from at least one end of the body part in a second direction, and the second direction intersects with the first direction. A distance between the first casing wall and the second casing wall in the first direction is D₁ mm, the area of the second outer surface of the second casing wall is S mm², and S is 36 to 500 times the square of D₁.

BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4773352A1

Disclosed in the present application are a battery cell, a battery and an electrical apparatus. The battery cell comprises an electrode assembly and a casing; the electrode assembly comprises a main body part and a first tab, the first tab extending out of one end of the main body part in a first direction; the casing is provided with an accommodation cavity, the electrode assembly being arranged in the accommodation cavity; the casing is provided with a first through hole and a second through hole, the portion of the accommodation cavity located on the side of the first tab is communicated with the first through hole, and the portion of the accommodation cavity located on the side of the main body part facing away from the first tab is communicated with the second through hole, the first through hole being used for injection of an electrolyte; in the axial direction of the first through hole, both the first tab and the main body part do not overlap the first through hole. The present application can improve the cycle performance of battery cells.

BATTERY CELL AND ELECTRIC DEVICE COMPRISING SAME

Resumen de: EP4773241A1

A battery cell and an electric device comprising same. The battery cell comprises an electrode assembly, which comprises a positive electrode sheet and a separator, wherein the positive electrode sheet comprises a positive electrode current collector and a positive electrode membrane layer arranged on at least one surface of the positive electrode current collector, the positive electrode membrane layer comprises a positive electrode active material, the positive electrode active material comprises a layered lithium-containing transition metal oxide, and the volume distribution particle size Dv50 of the positive electrode active material is smaller than or equal to 6.5 µm; and the separator comprises a porous substrate and a porous coating arranged on at least one surface of the porous substrate, and the porous coating comprises a fiber material and a granular filler. The electric device can make a battery have a high energy density, good low-temperature power performance and cycling performance.

LITHIUM MANGANESE IRON PHOSPHATE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, AND BATTERY

Resumen de: EP4773242A1

A lithium manganese iron phosphate material and a preparation method thereof, a positive electrode sheet and a preparation method thereof, and a battery are provided. The lithium manganese iron phosphate material is LiFe_xMn_yA_(1-x-y)PO₄, where 0 < x < 1 , 0 < y < 1, 0 ≤ 1 - x-y ≤ 0.2, and the doping element A is selected from at least one of Be, Ca, Mg, Ba and Sr; the lithium manganese iron phosphate material has the surface basicity value of 10~150 µmol/g.

POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4773227A1

A positive electrode active material and a preparation method therefor, a positive electrode plate, a battery, and an electrical apparatus are disclosed. The positive electrode active material includes a transition metal oxide and a coating layer. The coating layer is coated on at least part of the surface of the transition metal oxide. The coating layer includes a silicon-containing polymer. The silicon-containing polymer is formed by polymerizing a silane monomer derivative containing a first group and polysiloxane containing a second group. The first group is reactive with the second group. The molecular weight of the silane monomer derivative is less than that of the polysiloxane.

DIELECTRIC COATINGS

Resumen de: EP4772584A2

0001 Disclosed herein are coated substrates comprising a coating layer and an adhesive formed on at least a portion of the coating layer. The coating layer may be deposited from a powder coating composition and comprises a dielectric strength of at least 50 kV/mm measured according to ASTM D149-09 (voltage limit 12.0 kV DC, Imax Limit 0.1 mA, 19 sec ramp, 20 sec dwell, 2 sec fall) and a thermal conductivity of at least 0.3 W/K·m measured according to ASTM D5470 (steady-state methods). The adhesive may be formed from an adhesive composition and comprises a thermal conductivity of at least 1.0 W/K·m measured according to ASTM D5470. Also disclosed herein are systems for coating substrates. Also disclosed are methods of coating a substrate.

BATTERY STACKING METHOD AND SYSTEM

Resumen de: EP4773269A1

0001 Embodiments of the present disclosure provide a battery stack method and system. The battery stack system at least includes a controller, a base support, and a stacking table and a grabbing apparatus that are disposed on the base support. The battery stack method includes: in response to that a tray on the stacking table is in place, determining battery cell information stored in the tray; determining battery cell information of a target battery cell on a battery cell conveying line; and in the case that the battery cell information stored in the tray matches the battery cell information of the target battery cell, controlling the grabbing apparatus to grab the target battery cell and place the target battery cell in the tray.

TRAY, BATTERY PRODUCTION LINE AND CONTROL METHOD

Resumen de: EP4772458A1

0001 A pallet, a battery production line, and a control method are provided. The pallet includes a pallet body, at least two first position-limiting assemblies, and a second position-limiting assembly. The pallet body includes a placement region configured to place a battery cell. One part of the first position-limiting assemblies is disposed on one side of the placement region along a first direction, and the other part of the first position-limiting assemblies is disposed on the other side. The first position-limiting assemblies include a first position-limiting block that is movable along the first direction. The first position-limiting block is provided with a first position-limiting surface and a second position-limiting surface. The second position-limiting assembly is disposed on a side of the placement region along a second direction. The second position-limiting assembly includes a second position-limiting block that is movable along the second direction. The second position-limiting block is provided with a third position-limiting surface. The second position-limiting surface and the third position-limiting surface are respectively located on opposite sides of the placement region along the second direction.

BOTTOM SUPPORT APPARATUS, GRABBING DEVICE, PRODUCTION LINE, AND METHOD FOR REPLACING TYPE OF BOTTOM SUPPORT APPARATUS

Resumen de: EP4773270A1

The present disclosure relates to the technical field of batteries, and provides a bottom support apparatus, a grabbing device, a production line, and a method for replacing the type of a bottom support apparatus. The bottom support apparatus comprises a plurality of mounting units, a bottom support set, and a plurality of type-replacing mechanisms. Each mounting unit comprises two mounting platforms spaced apart along a first direction, and the plurality of mounting units are spaced apart along a second direction. The bottom support set comprises a plurality of bottom support boards. The plurality of bottom support boards are spaced apart along the second direction, and each bottom support board corresponds to the two mounting platforms of one of the mounting units. Two ends of each bottom support board along the first direction are each detachably connected to one of the type-replacing mechanisms. The type-replacing mechanisms are detachably connected to the mounting platforms. The first direction is perpendicular to the second direction.

DIGITAL ACCESS SYSTEM FOR VEHICLES FOR CHARGING CONTROLLED FROM THE OUTSIDE

Resumen de: EP4772389A2

Die Erfindung betrifft ein digitales Zugangssystem (1), ein Elektrofahrzeug (100) mit einem solchen Zugangssystem und ein Verfahren (200) zur Gewährung einer Zugangsberechtigung zu einem Elektrofahrzeug mit einem solchen Zugangssystem, das eine Freischalteinheit (11) zur Positionierung in dem Fahrzeug (100), mindesten eine Zugriffseinheit (12) und mindestens eine Aktivierungseinheit (13) zur Verwendung außerhalb des Fahrzeugs (100) umfasst, wobei die Aktivierungseinheit (13) mittels drahtloser Datenkommunikation (21) zu der Freischalteinheit (11) die Freischalteinheit (11) zumindest für einen Zeitraum aktiviert, die Zugriffseinheit (12) mittels einer zur vorherigen Datenkommunikation (21) separaten unabhängigen drahtlosen Datenkommunikation (22) mit der vorher aktivierten Empfangseinheit (11) einen Zugang zum Fahrzeug (100) von außen veranlasst, wobei die Freischalteinheit (11) in Reaktion auf die Datenkommunikation (22) mit der Zugriffseinheit (12) Steuersignale (14) an die Systemsteuerung (110) zur Ansteuerung des Verriegelungssystems und Freigabe zumindest einer verriegelnden Komponente (140) zur Ermöglichung des Zugangs zum Fahrzeug zu dessen Ladung zu übermittelt.

METHOD OF PREPARING POSITIVE ELECTRODE

Resumen de: EP4773236A2

The present invention relates to a method of preparing a positive electrode which includes forming a solid electrolyte by mixing a lithium salt and a polymer for a solid electrolyte in a dry atmosphere, forming a dry mixture by stirring after adding a conductive agent and a positive electrode active material to the solid electrolyte in a dry atmosphere, and pressing after coating a current collector with the dry mixture.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: EP4773341A1

This application provides a secondary battery and an electronic apparatus. A negative electrode material layer of the secondary battery includes a first negative electrode material layer and a second negative electrode material layer that are stacked, where the second negative electrode material layer is located between the first negative electrode material layer and a negative electrode current collector, a thickness of the first negative electrode material layer is H₁ µm, and a thickness of the second negative electrode material layer being H₂ µm, where 20≤H₁≤40, and 60≤H₂≤90; and D_v50 of a first negative electrode active material in the first negative electrode material layer is greater than D_v50 of a second negative electrode active material in the second negative electrode material layer. An electrolyte includes lithium difluorophosphate and a propionate compound, where the propionate compound includes propyl propionate; and based on a mass of the electrolyte, a mass percentage of the lithium difluorophosphate is W₁%, and a mass percentage of the propyl propionate is W₂%, where 0.1≤W₁≤1, 10≤W₂≤60, and 4≤W₁×H₁≤35. The secondary battery of this application has good kinetic performance and high-temperature float charging performance.

PHOSPHATE-BASED POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4773230A1

0001 A phosphate-based cathode material, a preparation method therefor, and a use thereof are provided in the disclosure. The phosphate-based cathode material includes a matrix particle and a carbon coating layer coated on a surface of the matrix particle. A chemical formula of the matrix particle is LiMPO<4>, where 0.96 ≤ x ≤ 1.08, 0.96 ≤ y ≤ 1, and M includes at least one of Fe or Mn. A first metal element is doped on an M site, and the first metal element includes at least one of Ti, V, Cr, Co, Ni, Nb, Mo, or W; and/or, a second metal element is doped on a Li site, and the second metal element includes at least one of Mg or Zr. The carbon coating layer includes a carbon material, and a degree of disorder I/I of the carbon material is less than or equal to 1.2.

NAIL PENETRATION TEST DEVICE

Resumen de: EP4772898A1

Disclosed is a nail penetration test device (100), which can improve the performance of nail penetration tests. The device (100) includes: a voltage acquisition module (130), including a first connection port and a second connection port, where the first connection port is connected to a nail, and the second connection port is connected to a first electrode terminal of a battery cell (20); and a nail mechanism (120), configured to control the nail to move toward the battery cell (20), where the voltage acquisition module (130) is configured to detect a voltage between the nail and the first electrode terminal during the movement of the nail toward the battery cell (20), and the voltage is used to determine an initial penetration position of the nail on the battery cell (20).

GRABBING DEVICE, MATERIAL GRABBING ROBOT, BATTERY PRODUCTION LINE, AND MATERIAL-GRABBING CONTROL METHOD

Resumen de: EP4772460A1

This application relates to the field of battery technologies and provides a grabbing apparatus, a material grabbing robot, a battery production line, and a material grabbing control method. The grabbing apparatus includes a mounting frame, a gripper mechanism, and a driving member. The gripper mechanism includes a first position finding member, a second position finding member, a first clamping jaw, a second clamping jaw, and a movable component. The first clamping jaw is arranged on the mounting frame, the second clamping jaw is movably arranged on the movable component, the first position finding member is arranged on the movable component, the second position finding member is arranged on the second clamping jaw, and the second position finding member has a staggered position and a detection position. When the second position finding member is located at one of the staggered position and the detection position, the second clamping jaw and the first clamping jaw clamp a battery cell. When the second position finding member is located at the other of the staggered position and the detection position, the second clamping jaw and the first clamping jaw release the battery cell. The driving member is arranged on the mounting frame and is configured to drive the movable component to move, so that the first clamping jaw and the second clamping jaw clamp or release the battery cell. The grabbing apparatus can grab battery cells of different sizes.

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: EP4773279A1

A secondary battery and an electronic apparatus are provided. A positive electr ode sheet in the secondary battery includes a positive electrode current collector, a pos itive electrode active material layer, and a positive electrode tab, where the positive el ectrode active material layer is disposed on at least one surface of the positive electrod e current collector. The positive electrode active material layer is provided with a first groove exposing the positive electrode current collector. The positive electrode tab is disposed in the first groove and connected to the positive electrode current collector. An insulating tape is provided on each of a surface of the positive electrode tab and a r egion, corresponding to the first groove, of a surface of the positive electrode sheet aw ay from the positive electrode tab. A melting point of the insulating tape is 250°C to 4 50°C. An electrolyte includes carbonate and carboxylate. Based on a mass of the elect rolyte, a mass percentage of the carbonate is denoted as A and a mass percentage of th e carboxylate is denoted as B, where A and B satisfy: 75% ≤ A + B ≤ 88% and 1 < A / B. Through the above configuration, the secondary battery has good reliability.

ENERGY STORAGE APPARATUS AND ENERGY STORAGE VALVE TOWER

Resumen de: EP4773462A1

0001 The present application provides an energy storage device (100) and an energy storage valve tower (1000). The energy storage device (100) includes an electrical cabinet module (10), a power module (20), and a bus module (30). The power module (20) and the bus module (30) are detachably connected to an electrical cabinet frame (11) of the electrical cabinet module (10). The energy storage device (100) provided in embodiments of the present application allows the power module (20) and the bus module (30) to be removed from the electrical cabinet frame (11) of the electrical cabinet module (10) when transportation is required, enabling separate packaging and transportation of the power module (20), bus module (30), and electrical cabinet module (10). As compared to integral transportation, the power module (20), bus module (30), and electrical cabinet module (10) as separate modules are lighter in weight than the complete energy storage device (100) and can be transported separately, thereby effectively improving transportation convenience.

TEST APPARATUS AND CHARGING SYSTEM

Resumen de: EP4772892A1

0001 This disclosure relates to the technical field of charge and discharge tests, and in particular to a testing apparatus and a charging system. The testing apparatus is configured to perform a charge and discharge test on a first energy storage and charging device and a second energy storage and charging device, where the first energy storage and charging device has a first charging interface, and the second energy storage and charging device has a second charging interface. The testing apparatus includes a connecting unit configured to connect power interfaces in the first charging interface and the second charging interface, so as to electrically connect the first energy storage and charging device and the second energy storage and charging device; and a test control unit configured to connect to signal interfaces in the first charging interface and the second charging interface to separately communicate with the first energy storage and charging device and the second energy storage and charging device, so as to control the first energy storage and charging device and the second energy storage and charging device for the charge and discharge test. Thus, the testing apparatus electrically connects the two energy storage and charging devices and communicates with the two energy storage and charging devices to control the two energy storage and charging devices for charge and discharge, thus implementing a bidirectional charge and discharge test on the two energy storage

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4773365A1

0001 A battery cell (20), a battery (100), and an electric device. The battery cell (20) comprises a casing (210), an electrode assembly (220), electrode terminals (230), and sealing members (240). The casing (210) comprises a first wall (211); through holes (2111) are formed in the first wall (211); the electrode assembly (220) is arranged in the casing (210); the first wall (211) is used for supporting the electrode assembly (220), each electrode terminal (230) is arranged at a corresponding through hole (2111); the electrode terminal (230) comprises a first conductive portion (231); the first conductive portion (231) is arranged on the side of the first wall (211) facing an accommodating space; and each sealing member (240) is arranged between a corresponding electrode terminal (230) and the first wall (211). When the outside of the casing (210) is stressed, the first wall (211) and the electrode terminals (230) can deform together, so that it is not easy to form gaps between the sealing members (240), which are located between the electrode terminals (230) and the first wall (211), and the first wall (211), and between the sealing members (240) and the electrode terminals (230), thereby maintaining good sealing performance between the sealing members (240) and the first wall (211) and between the sealing members (240) and the electrode terminals (230) and reducing the possibility of liquid leakage of the battery cell (20), and thus reducing the possibility of failure o

POWER CONVERSION SYSTEM-BASED CHARGING METHOD AND APPARATUS, AND POWER CONVERSION SYSTEM

Resumen de: EP4773458A1

A power conversion system-based charging method and apparatus, and a power conversion system. A soft-start circuit (301) connected in parallel with a first branch (302) can be used to perform voltage compensation on a bus by means of a direct current side. A voltage of the first branch (302) of a positive electrode of a battery is acquired as a first voltage, a voltage of a second branch (303) of the positive electrode of the battery is acquired as a second voltage, a difference between said voltages is calculated, the value of the first voltage is compared with the value of the second voltage when the difference is greater than a preset voltage value, the bus undergoes voltage compensation by using the direct current side so that the voltage of the bus is equal to the smaller voltage value, and then the bus is charged on the basis of the larger voltage value. A power conversion system is compatible with a multi-branch system and is used for a multi-branch topology, and a voltage compensation method of the power conversion system is not limited by the incapability to perform voltage compensation due to a low voltage of the branch where the soft-start circuit (301), thereby reducing the cost and improving the efficiency without affecting the system function, and greatly improving the utilization rate.

GAP FILLER COMPOSITION AND BATTERY PACK

Resumen de: EP4773347A1

0001 A gap filler composition according to embodiments of the present invention comprises: a siloxane-based resin; a filler including thermally conductive inorganic particles and hollow particles; a catalyst; and an amino-silicone-based dispersant. A gap filler composition is provided that maintains thermal conductivity by utilizing an amino-silicone-based dispersant and hollow particles and has low specific gravity and improved viscosity stability. A battery pack utilizing the gap filler composition is provided.

BATTERY, BATTERY MODULE, AND ELECTRIC APPARATUS

Nº publicación: EP4773419A1 08/07/2026

Solicitante:

EVE POWER CO LTD [CN]
Eve Power Co., Ltd.

Resumen de: EP4773419A1

0001 A battery, a battery module, and an electrical device are provided by the invention. The battery includes a casing, a cover plate, an electrode assembly, a terminal, and tabs. The cover plate covers the casing to define an accommodating cavity. The electrode assembly is disposed inside the accommodating cavity. The terminal is disposed on the cover plate and located on a side of the cover plate away from the accommodating cavity. The terminal is provided with a mounting groove communicated with the accommodating cavity. Each of the tabs is disposed in the mounting groove and is electrically connected to an inner wall of the mounting groove. The electrode assembly extends to a groove opening of the mounting groove and is connected to the tabs.