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43
resultados
Última actualización
14/04/2026 [07:54:00]
Resumen de: EP4723343A1
The present application provides a battery cell, a battery, and an electric apparatus, and pertains to the field of battery technology. The battery cell includes a housing, a pressure relief mechanism, and a first shielding member. The housing has a wall portion, and along a thickness direction of the wall portion, the wall portion has a first surface facing away from an interior of the housing, the first surface is provided with a groove, and a groove bottom surface of the groove is provided with a pressure relief hole. The pressure relief mechanism is disposed in the pressure relief hole, and the pressure relief mechanism is configured to release an internal pressure of the battery cell. The first shielding member is connected to the first surface and covers the groove. With the first shielding member provided on the first surface, and the first shielding member covering the groove, the first shielding member can shield the groove, mitigating the entry of impurities or electrolyte into the groove. This helps reduce the accumulation of impurities or electrolyte in the groove, thereby reducing corrosion of the pressure relief mechanism caused by impurities or electrolyte accumulated in the groove entering the pressure relief hole, and facilitating the improvement of the use reliability and service life of the battery cell.
Resumen de: US2025360356A1
In a first step, a time series of images are resized to a smaller dimension, and the smaller images are fed into a first classifier that is trained to classify as a ball any objects in the smaller images that resemble a ball. In a second step, the smaller images are mapped back to the series of images, and regions in the series of images that contain the mapped ball are cropped from the series of images. The mapped ball is shifted based on a velocity of the mapped ball in the cropped regions, and the second classifier regresses center coordinates and a radius of the shifted ball, classifies whether the shifted ball is the ball based on a confidence score, and updates the shifted ball in the cropped regions based on the regressed center coordinates and radius.
Resumen de: EP4722746A1
0001 A battery state diagnosis method and a battery state diagnosis device are provided, which achieve a highly accurate battery capacity deterioration diagnosis when a diagnosis target is a battery system, such as a battery system using a LiFePO<4>-based active material for the positive electrode, that exhibits little voltage change in response to a change in the state-of-charge. A battery state diagnosis method is for diagnosing a deterioration state of a secondary battery mounted on equipment, and includes: a data acquisition step of acquiring pieces of data about a voltage, a current, and a temperature of the secondary battery from the equipment in operation; a table creation step of creating, based on the acquired pieces of data, a table including a state of health capacity and a state of health resistance of the secondary battery; and a diagnosis step of diagnosing, using the created table, a deterioration state of the secondary battery.
Resumen de: EP4723197A1
0001 The present invention provides a positive electrode active material capable of improving battery capacity and output characteristics of a non-aqueous electrolyte secondary battery. This non-aqueous electrolyte secondary battery comprises a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode contains a lithium transition metal composite oxide as a positive electrode active material, and a sulfonic acid compound represented by general formula I. The lithium transition metal composite oxide contains 50 mol% or more of Ni with respect to the total number of moles of metal elements excluding Li. The negative electrode contains a negative electrode active material and contains 200 ppm by mass or more of S with respect to the total mass of the negative electrode active material. (In the formula, A represents a group 1 element or a group 2 element, R represents a hydrocarbon group, and n is 1 or 2.)
Resumen de: EP4723187A1
A secondary battery includes a positive electrode 15, a negative electrode 16 including a negative electrode current collector and a negative electrode active material layer provided on a surface of the negative electrode current collector, a separator 17 provided between the negative electrode and the negative electrode, an electrode group 18 configured by winding the positive electrode and the negative electrode with the separator therebetween, an electrolyte, and a battery case that houses the electrode group and the electrolyte. The negative electrode is located at the outermost periphery of the electrode group. The outermost periphery has a current collector exposed portion 161A where the negative electrode current collector is exposed. The expansion percentage of the negative electrode active material layer in negative electrode charging and discharging is higher at its edge parts 16B and 16C in the widthwise direction parallel to the winding axis of the negative electrode than at its central part 16A in the widthwise direction.
Resumen de: EP4723303A1
0001 A vehicle battery pack assembly includes a plurality of sub pack assemblies, each sub pack including a box frame. An internal frame assembly is disposed within the box frame. The box frame includes a front wall, a rear wall and a pair of side walls, one of the front wall and the rear wall includes a first plurality of mounting flanges vertically spaced there along and the pair of sidewalls each include a second plurality of mounting flanges vertically spaced there along. The internal frame assembly includes a plurality of first cold plate structures mounted directly to at least one of the first and second plurality of mounting flanges. A thermal hose assembly is connected to each of the plurality of first cold plate structures and a plurality of battery modules are supported on the plurality of first cold plate structures.
Resumen de: EP4723312A1
The present disclosure provides a conductive structure (10) for a battery cell, a cover plate assembly (100), and a battery cell (1000). The conductive structure (10) includes: a first-metal post (1) including a first end (11) and a second end (12) opposite to each other; and a second-metal layer (2) bonded to a surface of the first-metal post (1). The second-metal layer (2) wraps the first end (11) and extends toward the second end (12). The second-metal layer (2) is used to be connected to a tab (1210). In an axial direction of the first-metal post (1), a distance from an end portion (20) of the second-metal layer (2) to an end surface of the second end (12) is H1, a thickness D2 of the first-metal post (1), and a ratio of H1 to D2 ranges from 0 to 0.8.
Resumen de: EP4723250A1
A current collector, an electrode sheet, a secondary battery, an electric device, a copper foil, and a preparation method for the copper foil. The current collector comprises the copper foil, the average particle size of the crystal grains in the copper foil ranges from 50 nm to 400 nm, and based on the total number of crystal grains in the copper foil, the proportion of the crystal grains of nano twin crystals is greater than or equal to 60%. The combination of the high proportion nano twin crystal structure and the small crystal grain size functions to improve the mechanical strength of the current collector while maintaining the high plasticity of the current collector, thereby providing a material basis for further improvement of the energy density and safety of the battery.
Resumen de: EP4723320A1
0001 A secondary battery includes an electrode assembly (100) including a first electrode, a separator, and a second electrode stacked sequentially, a first case (110) configured to accommodate a portion of the electrode assembly (100), a second case (120) configured to accommodate another portion of the electrode assembly (100), and a central structure (130) between the first case (110) and the second case (120).
Resumen de: EP4723362A1
0001 The technical idea of the present disclosure provides a tape attaching apparatus. The tape attaching apparatus is configured to attach a first tape to a first side of a workpiece and a second tape to a second side of the workpiece. The tape attaching apparatus includes a tape holder including a first holder supporting the first tape and a second holder supporting the second tape, each configured to attach a center part of the first tape and a center part of the second tape to the workpiece and to attach a peripheral part of the first tape to a peripheral part of the second tape, wherein the tape holder includes a first holder supporting the first tape and a second holder supporting the second tape.
Resumen de: EP4722302A2
An coating composition includes a modified melamine salt and a binder. An endothermic temperature of the modified melamine salt is lower than an endothermic temperature of an unmodified melamine salt as characterized by a differential scanning calorimetry curve. A difference between the two endothermic temperatures is Δt, 5 °C ≤ Δt ≤ 100 °C. This configuration enables the electrochemical device to exhibit excellent high-temperature storage performance and mechanical safety performance.
Resumen de: EP4723213A1
The present application provides a modified lithium iron(III) oxide material, a method for preparing same, and use thereof. The modified lithium iron(III) oxide material comprises a nickel-doped lithium iron(III) oxide substrate, and an iron-nickel lithium oxide layer and a carbon coating layer sequentially stacked on the surface of the nickel-doped lithium iron(III) oxide substrate, wherein the iron-nickel lithium oxide layer is generated in situ on the surface of the nickel-doped lithium iron(III) oxide substrate, and in the modified lithium iron(III) oxide material, the molar ratio of lithium to iron is 5:(0.9 to 1.1), the molar ratio of nickel to lithium is (0.01 to 0.05):5, and the carbon coating content is 0.5 wt% to 5 wt%. The modified lithium iron(III) oxide material described herein comprises a unique thin nickel-iron-lithium oxide layer, and can significantly improve the stability of the lithium iron(III) oxide material and reduce or inhibit the generation of the residual base, thus possessing excellent lithium replenishment performance.
Resumen de: EP4723282A1
An electrolyte, a secondary battery, and an electrical apparatus. The electrolyte includes a first additive, a second additive, and a third additive. The first additive comprises an element-containing inorganic salt; the second additive comprises an unsaturated bond-containing compound, the reduction potential of the unsaturated bond-containing compound being greater than or equal to 0.8V(Li+/Li); and the third additive comprises an amide group-containing compound. The first additive, the second additive, and the third additive are added to the electrolyte, so as to improve both high-temperature performance and low-temperature performance of a secondary battery.
Resumen de: EP4723270A2
0001 A monitoring system of monitoring a battery manufacturing process is provided. The system includes: a first server configured for storing a first coordinate-related data set in which coordinate data indicating lengthwise positions on an electrode are associated with inspection data and/or measurement data obtained from the positions of the electrode being subject to a plurality of manufacturing sub-processes, and an identification data set including an electrode identifier, ID, identifying a respective sectional electrode that has been obtained by cutting off a lengthwise section from the electrode, a memory storing instructions, and at least one processor configured to execute the instructions stored in the memory to perform operations of: 1) associating an electrode ID selected from the identification data set with the coordinate data of the first coordinate-related data set representing the lengthwise section of the electrode from which the sectional electrode identified by the electrode ID has been obtained, and 2) generating monitoring data on the battery manufacturing process based on the coordinate data associated with the electrode ID.
Resumen de: EP4723420A1
An energy storage apparatus (10) and an energy storage system (100) are provided. The energy storage apparatus (10) is configured to be electrically connected to a power conversion system (20), where the power conversion system (20) is capable of cooperating with M energy storage apparatuses (10), a rated output power of the power conversion system (20) is P, an energy of the energy storage apparatus (10) is Q, a duration for the energy storage apparatus (10) to discharge from a fully charged state to a fully discharged state is A, satisfying: 0.7 ≤ P/(M * Q/A) ≤ 0.99. With P/(M * Q/A) ≤ 0.99, it is ensured that the power of all energy storage apparatuses (10) cooperating with the power conversion system (20) maintains sufficient margin relative to the power of the power conversion system (20), eliminating the need for capacity supplementation of the energy storage apparatus (10) over a long period, achieving long-term reliability of the energy storage apparatus (10). With P/(M * Q/A) 2: 0.7, it is ensured that the margin of the power of the energy storage apparatus (10) relative to the power of the power conversion system (20) is not excessive, reducing power waste and improving the economic efficiency of the energy storage apparatus (10). Thus, power matching between the energy storage apparatus (10) and the power conversion system (20) is improved.
Resumen de: EP4721876A1
A device may adjust a position of a shim plate mounted in a slot die coater for electrode manufacturing. The device may have a shim adjustment part including a displacement meter for measuring an offset value of a shim plate disposed in the die block and including a position adjuster for adjusting the position of the shim plate according to the measured offset value, so that the position of the shim plate can be precisely and easily adjusted to a micrometer level during the assembly of the slot die coater, thereby enabling excellent workability and productivity. Furthermore, the slot die coater with the adjusted position of the shim plate may be used in manufacturing electrodes for lithium secondary batteries with high reliability on the loading amount of the electrode slurry because the offset of the shim plate is precisely adjustable.
Resumen de: EP4723294A1
A battery system according to an embodiment of the present disclosure comprises: a battery cell that stores and supplies energy through charging and discharging, a sensing unit that collects status information of the battery cell, a cooling device that performs heat dissipation of the battery cell, and a BMS that controls the operation of the cooling device based on the status information collected from the sensing unit, wherein the cooling device includes a coolant for cooling the battery cell and a heat exchange unit for cooling the coolant, and wherein if it is determined that a fire has occurred in the battery cell, the heat exchange unit operates under a first condition or a second condition based on the status information.
Resumen de: EP4723412A1
0001 Disclosed in the present application are a control circuit, a control system, and a transportation device. The control circuit is configured to control connection or disconnection of a target loop after being connected to the target loop. The control circuit includes: a current detection unit, where the current detection unit is configured to: when being connected to a battery, output a first type signal when detecting that the battery has an overcurrent or a short circuit; and a driver circuit, where an input terminal of the driver circuit is connected to a signal output terminal of the current detection unit, an output terminal of the driver circuit is configured to connect to a safety module in the target loop, and the driver circuit is configured to output, in response to receiving the first type signal transmitted from the current detection unit, a drive signal to drive the safety module to be disconnected, where the target loop is a loop in the battery or a loop in a device in which the battery is located.
Resumen de: EP4723301A1
0001 This application discloses a heating structure for heating a side plate of a battery. The heating structure includes a heating element and a heat-conducting element, where the heat-conducting element is fitted to the heating element and configured to conduct heat to the side plate of the battery. The heat-conducting element is provided with a first clearance hole capable of avoiding a protruding structure on the side plate. This application further discloses a heating bank and a battery production device.
Resumen de: EP4723258A1
0001 The present application is applicable to the technical field of battery manufacturing apparatuses and provides a battery support mechanism (30) and a battery heating device (1). The battery support mechanism (30) includes a base (100), a drive structure (200), and two end plate support structures (300). The two end plate support structures (300) are spaced apart along a first direction on the base (100), and at least one of the two end plate support structures (300) is in transmission connection to the drive structure (200) to move along the first direction under the drive of the drive structure (200). The battery support mechanism (30) provided by the present application is configured to support a battery (50). A distance between the two end plate support structures (300) can be adjusted through the drive structure (200) according to the size of the battery (50), so as to support batteries (50) of different sizes with higher compatibility.
Resumen de: EP4723314A1
0001 Embodiments of this application provide a battery cell, a battery, an electric apparatus, and an energy storage apparatus. The battery cell includes a housing and an electrode assembly, where the electrode assembly is accommodated within the housing, the housing is cylindrical, a height of the housing is H<1>, and a radius of the housing is R<1>. The housing includes a first end wall, a second end wall, and a side wall, where the first end wall and the second end wall are oppositely disposed along a height direction of the housing, and the side wall connects the first end wall and the second end wall. A sum of thicknesses of the first end wall and the second end wall is a, and a thickness of the side wall is b, satisfying: (R<1>-b)<2>*(H<1>-a)/(R<1>2 *H<1>)≥96%. Thus, the volumetric energy density of the battery cell is increased under a same chemical material system.
Resumen de: EP4723191A1
The present disclosure relates to a negative electrode, a secondary battery including the same, and a secondary battery system for the same. The negative electrode can implement a predetermined volume resistance by including aluminum-containing particles of specific components and a conductive material in a coating layer. Such a negative electrode can implement appropriate insulating properties on the negative electrode surface during an internal short-circuit while allowing a predetermined current to leak, thereby preventing melt-down phenomenon and/or rapid heat generation of the secondary battery due to internal short circuits.
Resumen de: EP4723291A1
A secondary battery (1), a battery assembly (100), and an electronic device (1000) are provided. The secondary battery (1) includes: a housing (10) and an electrode assembly (20) accommodated in the housing (10). The electrode assembly (20) includes a wound structure (201) formed by a positive electrode sheet (21), a separator (22), and a negative electrode sheet (23). A positive electrode current collector (211) of the positive electrode sheet (21) includes a positive electrode coated region (212) and a positive electrode uncoated region (213). A negative electrode current collector (231) of the negative electrode sheet (23) includes a negative electrode coated region (232) and a negative electrode uncoated region (233). A part of the positive electrode uncoated region (213) is bent to form a stacked positive electrode tab region (2131). A part of the negative electrode uncoated region (233) is bent to form a stacked negative electrode tab region (2331).
Resumen de: EP4723239A1
A positive electrode active material, a method for preparing a positive electrode active material, a positive electrode plate, a battery, and a power consuming apparatus. The positive electrode active material includes a core and a first coating layer. The core includes NaxRy(PO4)z(P2O7)k. 1≤x≤7. 1≤y≤4. 1≤z≤4. 1≤k≤4. R includes at least one of Mg, Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Sn, Hf, Ta, W, or Pb. The first coating layer is formed on at least a part of the core. The first coating layer includes MaOb. M includes at least one of Ca, Bi, Ba, Ti, Al, Nb, Mg, Fe, Cu, Zn, Mn, Ni, or Co. 1≤a≤7. 1≤b≤12.
Nº publicación: EP4723276A1 08/04/2026
Solicitante:
SOLIVIS INC [KR]
Resumen de: EP4723276A1
0001 The present disclosure relates to a sulfide-based solid electrolyte including an argyrodite-based compound that contains lithium, phosphorus, sulfur, a halogen element, and a Group 13 element and has an argyrodite crystal structure. The sulfide-based solid electrolyte of the present disclosure may exhibit enhanced electrochemical stability and atmospheric stability through substitution of some in the crystal structure with the Group 13 element.
BOPI
Sede Electrónica
