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1597
resultados
Última actualización
07/05/2026 [08:24:00]
Resultados 25 a 50 de 1597
Resumen de: EP4738988A2
The present disclosure relates to an aerosol delivery device. In some implementations, the aerosol delivery device may comprise a control device and a cartridge having a mouthpiece portion and a tank portion with respective proximal and distal ends, the tank portion being configured to contain a liquid composition, and the cartridge further including a liquid transport element and an atomizing member. At least a portion of the liquid transport element may be positioned proximate the atomizing member, and at least a portion of the atomizing member may be positioned proximate the distal end of the mouthpiece portion. In other implementations, at least a portion of the atomizing member may be positioned above the proximal end of the tank portion. In still other implementations, at least a portion of the atomizing member may be positioned between the proximal end of the tank portion and the distal end of the tank portion.
Resumen de: EP4736917A2
0001 An aerosol generating device for receiving an aerosol generating article comprising a conductive material. The aerosol generating device comprises an electrical circuit comprising: a controller configured to detect a change in capacitance of the circuit; a conductive surface for interacting electromagnetically with the conductive material when arranged in proximity; and conductive elements connecting the controller to the conductive surface. The change in capacitance is caused by the user inserting the aerosol generating article in the aerosol provision device. The conductive surface is configured to, when the aerosol generating article is fully received in use, have a first capacitance value with the conductive material.
Resumen de: EP4737923A1
0001 The present disclosure provides a method for detecting and locating thermal runaway of a battery cell in a battery system. The method includes: obtaining a quantity of battery cells in a battery system; setting a same quantity of resistors with different resistance values based on the quantity of battery cells; connecting a temperature switch in parallel to each resistor, and connecting each parallel unit in series; placing the temperature switch in each parallel unit connected in series on an explosion-proof valve area of each battery cell; labeling the resistor in each parallel unit connected in series with a different resistance value for each battery cell; determining a total resistance value after the series connection in the battery system; and when the total resistance value after the series connection is a labeled resistance value of a corresponding battery cell, determining that the corresponding battery cell undergoes thermal runaway. In this way, a position of a specific runaway battery cell can be located accurately, thereby performing fire prevention and extinguishing accurately to reduce a risk of a safety accident caused by combustion of the battery system and minimize a loss.
Resumen de: EP4738561A2
0001 A pouch type secondary battery is disclosed. One aspect of the present invention provides a pouch type secondary battery including a casing material configured to accommodate an electrode assembly from which electrode tabs are led; and the casing material includes a sealing portion formed on three sides of four sides of the pouch type secondary battery and an close contact portion formed on the remaining one side; and an extending portion protruding perpendicularly with respect to the close contact portion is formed in a portion adjacent to the close contact portion in the sealing portion.
Resumen de: EP4738597A2
0001 Embodiments of the present disclosure relate to a battery module. According to an embodiment of the present disclosure, there is provided a battery module including a plurality of battery cells each including at least one electrode tab, and a bus bar in contact with the electrode tabs to electrically connect the plurality of battery cells, wherein the bus bar includes a plate in which a plurality of holes are formed, and the electrode tabs are inserted into at least a portion of the plurality of holes to electrically connect the plurality of battery cells.
Resumen de: EP4738520A1
0001 A cell and an electric device are provided. The cell includes an electrode assembly, where the electrode assembly includes a positive electrode plate, a negative electrode plate, a positive electrode tab, and a negative electrode tab. The positive electrode plate includes a positive electrode active material region, and the negative electrode plate includes a negative electrode active material region; along a width direction of the positive electrode plate, the positive electrode active material region has a first end and a second end opposite to each other, and the positive electrode tab protrudes from the first end; along a width direction of the negative electrode plate, the negative electrode active material region has a first region extending beyond the first end and a second region extending beyond the second end, the negative electrode tab is connected to the first region, a width of the first region is denoted as E, a width of the second region is denoted as C, and E > C. This enables the housing to reserve more space for the electrolyte on the tab side of the negative electrode active material region and the tab side of the positive electrode active material region without increasing the volume of the housing. In this way, the positive electrode plate and the negative electrode plate may be fully infiltrated, thereby endowing the cell with relatively good cycling performance and a relatively high volumetric energy density.
Resumen de: EP4738641A1
0001 A battery module and an energy storage system are provided. The battery module includes a battery pack, a DC/DC converter, a controller, and a voltage regulator circuit. The voltage regulator circuit includes a resistor, a capacitor, a first switch, and a second switch. A positive end of the DC/DC converter and one end of the capacitor are connected to a positive electrode of the battery pack through the first switch, a negative end of the DC/DC converter and the other end of the capacitor are connected to a negative electrode of the battery pack through the resistor, and the negative end and the other end of the battery-side capacitor are connected to the negative electrode of the battery pack through the second switch. The controller is configured to control the first switch to be turned on, control the second switch to be turned on after a preset condition is met, and control the DC/DC converter, where a voltage at the two ends of the capacitor when the preset condition is met is greater than a voltage at the two ends of the capacitor when the preset condition is not met. The second switch is turned on after the preset condition is met, so that a control delay of the DC/DC converter can be reduced.
Resumen de: EP4738595A1
This application discloses an electrochemical apparatus and an electric device. The electrochemical apparatus includes a first housing portion and a second housing portion of opposite polarities, an electrode assembly, and a first connector. The electrode assembly includes an electrode plate assembly, a first tab, and a second tab. A first electrode plate of the electrode plate assembly is located on a winding inner side relative to a second electrode plate. The first tab is connected to a first region of the first electrode plate. The first tab includes a second region connected to the first housing portion. The second tab is connected to a third region of the second electrode plate. The first connector is connected to the first housing portion, and includes a fourth region configured to be connected to an electric device. A winding length of the first region extending beyond the third region is less than one turn. An angle formed by rotating the third region to the first region around a winding center is θ, satisfying: 45° ≤ θ ≤ 135°. An angle formed by rotating the first region to the fourth region around the second region is α, satisfying: -60° ≤ α ≤ 45°. The electrochemical apparatus of this application is conducive to reducing an axial magnetic field at the end face, thereby reducing interference with the electric device.
Resumen de: EP4738471A1
This application relates to a negative electrode material, a negative electrode using the material, an electrochemical apparatus, and an electronic apparatus. Specifically, this application provides a negative electrode material, including graphite, where the negative electrode material has an I-order lithium intercalation plateau potential P1 of 30 mV to 75 mV and an II-order lithium intercalation plateau potential P2 of 90 mV to 110 m V The use of the negative electrode material of this application can significantly improve the cycling performance of the electrochemical apparatus using the negative electrode material under high voltage and high temperature, enhance the gram capacity of the negative electrode material, while maintaining the initial efficiency of the negative electrode material.
Resumen de: EP4738553A1
0001 A cover plate assembly (100) and a battery comprising same. The cover plate assembly (100) comprises a cover plate body (1), an electrode lead-out member (2), an outer conductive member (3), and a heat dissipation material (4); the outer conductive member (3) is provided with a through connecting hole (3a); the electrode lead-out member (2) is provided with a connecting portion (2a); the electrode lead-out member (2) passes through the cover plate body (1) and is connected to the outer conductive member (3) at the connecting hole (3a) by means of the connecting portion (2a) of the electrode lead-out member (2); and the heat dissipation material (4) is disposed in the connecting hole (3a) and is in contact with the connecting portion (2a). The electrode lead-out member (2) and the outer conductive member (3) disposed on the cover plate body (1) are combined to form a whole, the heat dissipation material (4) is disposed at the joint of the electrode lead-out member and the outer conductive member, and the heat of the electrode lead-out member (2) and the outer conductive member (3) is simultaneously absorbed by means of the heat dissipation material (4). The heat dissipation material (4) is simultaneously in contact with the electrode lead-out member (2) and the outer conductive member (3), thereby indirectly increasing the contact area between the electrode lead-out member (2) and the outer conductive member (3), and avoiding too high local temperature rise.
Resumen de: EP4737881A1
Die Erfindung betrifft ein Verfahren zur thermomechanischen Prüfung eines Prüflings, dadurch gekennzeichnet, dass der Prüfling mit einem thermischen Hochgeschwindigkeits-Massestrom beaufschlagt wird. Weiterhin betrifft die Erfindung eine Prüfvorrichtung zur thermomechanischen Prüfung eines Prüflings.
Resumen de: EP4738523A1
This application discloses an electrochemical apparatus and an electrical device. The electrochemical apparatus includes a housing and an electrode assembly. The housing includes a first housing portion and a second housing portion with opposite polarities. The electrode assembly includes an electrode plate assembly, a first tab, and a second tab, where the electrode plate assembly includes a first electrode plate and a second electrode plate arranged in a wound manner, the first tab is connected to the first electrode plate and the first housing portion, and the second tab is connected to the second electrode plate and the second housing portion. The electrochemical apparatus further includes a first connector, the first connector including a first arc portion and satisfying: 30° ≤ γ + (10.95 × (R1/R0)3 - 31.0144 × (R1/R0)2 + 28.88 × (R1/R0) - 7.012) × β1 ≤ 180°; and/or, the electrochemical apparatus further includes a second connector, the second connector including a second arc portion and satisfying: 30° ≤ γ - (10.95 × (R2/R0)3 - 31.0144 × (R2/R0)2 + 28.88 × (R2/R0) - 7.012) × β2 ≤ 180°. This application facilitates the reduction of an axial magnetic field at an end face of the electrode plate assembly with a wound structure, thereby facilitating the red
Resumen de: EP4737929A2
Disclosed is a battery diagnosis apparatus, which includes a voltage sensing circuit configured to generate a voltage signal indicating a cell voltage of a battery cell; a storage medium configured to store time series data for the cell voltage; and a control circuit operably coupled with the voltage sensing circuit and the storage medium. The control circuit is configured to (i) receive the voltage signal and record the time series data for the cell voltage in the storage medium, (ii) select kth, k+1th, and k+2th measured cell voltage set from the time series data as diagnostic data (k is an index indicating a measurement order of the cell voltage and is a natural number of 1 or more to which a plurality of values is assigned), (iii) determine a first voltage difference between the kth cell voltage and the k+1th cell voltage and a second voltage difference between the k+1th cell voltage and the k+2th cell voltage, and (iv) diagnose the battery cell as exhibiting a voltage abnormality, when, for a plurality of cell voltage sets, a count number of cell voltage sets for which a normal diagnosis condition where the p square of the first voltage difference (p is a natural number of 1 or more) is greater than the p square of the second voltage difference is not established is greater than or equal to a criterion value.
Resumen de: EP4737052A1
0001 The present disclosure relates to the technical field of battery production. Disclosed are a welding protection device, a welding system, a position adjusting method, and a welding method. A housing comprises a protection main body and protection covers, the protection main body and the protection covers define a protection cavity, and the protection covers can extend and retract. Multiple protection assemblies are arranged on the housing, each protection assembly is provided with a welding area communicated with the protection cavity, the welding area penetrates through the protection assembly, and the welding area is used for allowing a tip to pass through and perform welding. A driving assembly is arranged on the protection main body, the driving assembly is used for driving the protection assemblies and/or the protection main body to move so as to enable at least one protection assembly and a corresponding protection cover to move, and the direction of extension and retraction of each protection cover is arranged in the corresponding direction of movement of the protection assembly so as to limit a welding material from being separated from the protection cavity.
Resumen de: EP4738493A1
A laying and attaching assembly, an adhesive attaching method, and a battery production line. The laying and attaching assembly comprises a transfer unit (1), lifting devices (2) and laying and attaching devices (3). The lifting devices (2) are arranged on the transfer unit (1), the transfer unit (1) being used for driving the lifting devices (2) to move, and a plurality of the lifting devices (2) being provided. The laying and attaching devices (3) are used for vacuum-fixing adhesive sheets (300), each lifting device (2) being correspondingly provided with a laying and attaching device (3), and each lifting device (2) being used for driving the corresponding laying and attaching device (3) to ascend and descend. The transfer unit (1) drives the lifting devices (2) to move so as to adjust the position of the adhesive sheets (300) vacuum-fixed to the laying and attaching devices (3), and the lifting devices (2) drive the corresponding laying and attaching devices (3) to ascend and descend so as to vacuum-fix corresponding adhesive sheets (300), such that the distance between the adhesive sheets (300) vacuum-fixed to the laying and attaching devices (3) can be regulated, thereby better implementing adhesive attaching to surfaces of both single-row grouped battery cells and double-row grouped battery cells.
Resumen de: EP4737049A1
0001 A welding method and system for battery poles, wherein the method is applied to a control device in a welding system. The welding system further comprises a movable welding device (402), and a welding module (4021) and a ranging sensor (4022) which are arranged on the movable welding device (402). The method comprises: acquiring a set of pole coordinates, in a welding station coordinate system, of a plurality of poles of a battery; on the basis of the set of pole coordinates and welding quantity information of a welding module (4021), determining a set of welding coordinates of the welding module (4021); acquiring welding heights corresponding to welding coordinates in the set of welding coordinates, wherein the welding heights are determined on the basis of height distances between a ranging sensor (4022) and poles corresponding to the welding coordinates, which height distances are collected by means of the ranging sensor (4022); and on the basis of the set of welding coordinates and the welding heights corresponding to the welding coordinates, controlling the welding module (4021) to weld the poles of the battery. By means of the welding system, welding quality problems caused by non-uniform heights of poles are reduced, thereby improving the yield of batteries.
Resumen de: EP4738585A1
0001 The present application relates to the technical field of lithium-ion batteries, and more particularly to a case (100) of battery and a battery. A sidewall perpendicular to the width direction (Y) is defined as a first sidewall (101), and a sidewall perpendicular to the thickness direction (Z) is defined as a second sidewall (102). The first sidewall is provided with a mounting hole (105) for mounting an explosion-proof valve (104). In the thickness direction, the mounting hole (105) is located at the center of the first sidewall (101). The first sidewall is connected to two adjacent second sidewalls via rounded corner walls (103). Each rounded corner wall (103) includes a first side and a second side. The distance from the first side of the mounting hole (105) to the corresponding first side of the rounded corner wall (103), and the distance from the second side of the mounting hole (105) to the corresponding first side of the rounded corner wall (103), are both defined as "C". The dimension of the case in the thickness direction is "B", and the dimension of the mounting hole in the thickness direction is "E", wherein 0.05B≤C≤0.20B, and 0.35B≤E≤0.70B. The case (100) of battery and battery of the present application solve the problem of inappropriate distance between the edge of the explosion-proof valve and the rounded corner wall after adjusting the pressure relief mechanism to the sidewall of the case body.
Resumen de: EP4737360A1
A material conveying apparatus, a battery assembly system, a production line, and an assembly method. The material conveying apparatus comprises a frame (10), a conveying mechanism (20), a limiting mechanism (30), and a carrying mechanism (40). The conveying mechanism (20) comprises two conveying paths arranged on the frame (10), one of the two conveying paths is an input path (21) used for conveying a box body (60) loaded with materials, and the other one of the two conveying paths is an output path (22) used for conveying the unloaded box body (60). The limiting mechanism (30) is disposed on the frame (10) or the conveying mechanism (20) and is used to define on the input path (21) a waiting position (21a) and a material pick-up position (21b) arranged in the input direction, and define on the output path (22) a transfer position (22a) and a removal position (22b) arranged in the output direction. The carrying mechanism (40) is used for carrying to the transfer position (22a) the box body (60) which is located at the material pick-up position (21b). The material conveying apparatus can be adapted to transportation of various battery assembly materials and has good universality.
Resumen de: EP4738557A1
The present application discloses a battery cell, a battery, and an electric apparatus. The battery cell includes a housing, an electrode terminal, and an insulating member. The housing has a first wall, where the first wall has a first through hole. The electrode terminal is disposed in the first through hole, and along a first direction, the electrode terminal has a first end, where the first direction is parallel to a thickness direction of the first wall. At least a portion of the insulating member is disposed between the electrode terminal and a wall of the first through hole, and the insulating member connects the electrode terminal and the first wall. Along the first direction, a projection of the first end does not overlap with a projection of the insulating member. The technical solutions provided by the present application can improve the reliability of the battery.
Resumen de: EP4738515A1
Provided herein is a lithium-ion secondary battery and an electrical apparatus. In this disclosure, parameters related to an anode and an electrolyte of the lithium-ion secondary battery are reasonably designed, such that the lithium-ion secondary battery satisfies a relationship: 6.7 ≤ CB × PD / (η × A) ≤ 160, where CB represents a capacity excess coefficient of the lithium-ion secondary battery; A represents a mass percentage of the DTD in the electrolyte; PD represents a compaction density of the anode active material layer; η represents a viscosity of the electrolyte.
Resumen de: EP4738586A1
The present application relates to the technical field of batteries, and discloses an explosion-proof valve, a battery, and a processing method for an explosion-proof valve. The explosion-proof valve includes: an explosion-proof valve body suitable for being arranged on a housing of a battery; a thinned area surrounding the circumference of the explosion-proof valve body, where the thickness of the thinned area is less than that of the explosion-proof valve body; an explosion rib arranged in the thinned area, where the thickness of the explosion rib is less than the thickness of the thinned area, and the explosion rib is suitable for breaking at a preset pressure value; and a plurality of pits spaced apart from each other in the thinned area and spaced apart from the explosion rib to reduce stress in the thinned area. When the gas pressure value inside the battery reaches the preset pressure value, the explosion rib first breaks to form an exhaust channel, facilitating the discharge of high-pressure gas inside the battery. The pits in the thinned area can destroy the crystal structure on the surface of the thinned area, thereby relieving some stress, solving the problem of high stress in the forming process of the explosion-proof valve, and preventing structural deformation or break.
Resumen de: EP4738574A1
0001 The present application discloses a battery and an electric device. The battery includes: a battery cell (20) provided with a first pressure relief mechanism (21); a housing (10) provided with an inner cavity (11); a first separator plate (30) mounted in the housing (10) to separate the inner cavity (11) into a first chamber (111) and a second chamber (112), where the battery cell (20) is mounted in the first chamber (111), the first separator plate (30) is provided with a through hole (31), the first chamber (111) is communicated with the second chamber (112) through the through hole (31), and the first pressure relief mechanism (21) is communicated with the through hole (31) to allow an ejected substance ejected from the battery cell (20) to flow into the second chamber (112); and a cooling device mounted in the second chamber (112), where the cooling device is configured to cool the ejected substance flowing into the second chamber (112). Application of the technical solution of the present application solves the problems that high-temperature substances ejected during thermal runaway of current batteries not only have the risk of being ignited, but also generate continuous thermal shock and radiation to the periphery of the battery, and great thermal harm is caused.
Resumen de: EP4738599A1
The present disclosure relates to a battery cell and a battery pack including the same. The battery cell includes a housing; a cell assembly, wherein the cell assembly comprises a jelly roll and a plurality of first tabs and a second tab, the plurality of first tabs and the second tab are electrically connected to the jelly roll, the plurality of first tabs are spaced apart, the plurality of first tabs and the second tab are spaced apart in a first direction X and have opposite polarities; a top cover; a first terminal post, electrically connected to the plurality of first tabs; a second terminal post, electrically connected to the second tab. In the present disclosure, by arranging the battery cells in the battery pack, not only the space utilization can be improved, but also the fast-charging performance can be enhanced.
Resumen de: EP4738449A1
0001 The present invention provides an electrode plate and battery. The electrode plate comprises a current collector and an electrode film provided on at least one functional surface of the current collector, wherein the electrode film comprises fibres, at least some of the fibres extending in a first direction of the electrode plate. By defining the composition and structure of the electrode plate, the tensile force at break and bonding strength of the electrode plate can be significantly improved, the tensile strength of the electrode plate can be increased, and the risk of breakage can be reduced. When the electrode plate is applied to a battery, the cycling performance and thickness expansion rate of the battery can be significantly improved.
Nº publicación: EP4738521A1 06/05/2026
Solicitante:
NINGDE AMPEREX TECHNOLOGY LTD [CN]
Ningde Amperex Technology Limited
Resumen de: EP4738521A1
0001 This application provides an electrochemical device and an electronic device, where the electrochemical device includes an electrode assembly and an electrolyte, where the electrode assembly includes a negative electrode plate, the negative electrode plate includes a negative electrode active material layer, the negative electrode active material layer includes a negative electrode active material and a negative electrode binder, the negative electrode binder includes an ester substance and a non-ester substance, and based on a mass of the negative electrode binder, a mass percentage of the ester substance is x; the electrolyte includes fluoroethylene carbonate and a high-kinetic solvent, the high-kinetic solvent includes at least one of ethyl propionate, propyl propionate, or diethyl carbonate, and a ratio of a mass percentage of fluoroethylene carbonate to a mass percentage of the high-kinetic solvent in the electrolyte is y; and the electrochemical device satisfies: 17% ≤ x + y ≤ 53%, y is from 0.4% to 14%, and based on a mass of the electrolyte, a mass percentage of fluoroethylene carbonate is from 0.1% to 10%. By synergistically controlling x and y, this application mitigates volume expansion and capacity fade during cycling in fast-charging systems, thereby improving cycle performance.
BOPI
Sede Electrónica
