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1111
resultados
Última actualización
25/01/2026 [07:40:00]
Resultados 350 a 375 de 1111
Resumen de: EP4682559A1
Provided are a secondary battery state diagnosis system and a secondary battery state diagnosis method that are capable of estimating a full charge capacity more accurately even when there is a period in which data is not acquired with respect to a secondary battery of an electric vehicle. A calculation unit of the secondary battery state diagnosis system a) calculates a first SOC based on a first voltage at a first time point when voltage application related to charging starts, b) calculates, when the voltage application related to the charging ends at a second time point, a relaxation time based on a second voltage at the second time point and the temperature, c) calculates a second SOC based on a third voltage at a third time point after the second time point, and d) estimates, when a time from the second time point to the third time point is equal to or longer than the relaxation time, the full charge capacity of the battery cell or the battery pack based on a current related to the charging, the first SOC, and the second SOC.
Resumen de: EP4682991A1
This negative electrode additive contains a lignin component containing at least a lignin derivative, in which a mass ratio of an extracted component amount to a methoxy group amount per solid content of the lignin component is 0.005 to 0.25, an extracted component amount per solid content of the lignin component is 0.05 to 2.5 mass%, and a methoxy group amount per solid content of the lignin component is 3 to 18 mass%.
Resumen de: EP4682560A1
An information processing apparatus includes a processing unit. The processing unit calculates frequencies at each of which corresponding one of a plurality of first batteries has a specific attribute based on a plurality of pieces of operation data obtained during operation of a second battery that is a battery including the plurality of first batteries each functioning as a battery, the plurality of pieces of operation data including the specific attribute and identification information for identifying the first battery having the specific attribute, the specific attribute satisfying a predetermined condition in an attribute of the plurality of first batteries. The processing unit identifies the first battery in a specific state among the plurality of first batteries, based on the frequencies.
Resumen de: EP4682984A1
The present disclosure provides a layered oxide cathode material and a preparation method thereof, a cathode sheet, and a sodium ion battery, and belongs to the technical field of sodium ion batteries. The layered oxide cathode material includes an O3@P2-phase composite oxide particle and an inert coating layer coated on its surface, and the O3@P2-phase composite oxide particle includes an O3-phase nickel-manganese-based oxide layered particle and a P2-phase metal oxide coating layer coated on the surface of the O3-phase nickel-manganese-based oxide layered particle; and the inert coating layer is a carbon layer and/or an inorganic metal oxide layer. When the layered oxide cathode material provided by the present disclosure is applied to the sodium ion battery, the prepared sodium ion battery has high initial coulombic efficiency, excellent rate performance, long cycle life, and good air stability.
Resumen de: EP4683057A1
Disclosed are a secondary battery (100), a battery assembly (10), and an electronic device (1). The secondary battery includes a housing (110), an electrode assembly (120), a terminal (140), an insulation sealing member (150), and a lower plastic component (160). The housing includes an end wall (111), and the end wall is provided with a terminal hole (1111). The terminal includes a columnar part (142), an outer flange (143), and an inner flange (141). The columnar part (142) passes through the terminal hole. The outer flange is located outside the housing, and extends from the columnar part toward the outer periphery of the end wall. The inner flange is located inside the housing, and extends from the columnar part toward the outer periphery of the end wall. The external insulation part of the insulation sealing member is located between the outer flange and the end wall.
Resumen de: EP4682988A1
The present invention relates to a cathode active material and, to a cathode active material, and a cathode and a lithium secondary battery, each including same, in which the cathode active material can solve conventional problems of secondary particles and problems of single-particles at the same time, and comprises, as primary particles, particles like conventional single-particles, and secondary particles formed by aggregation of a plurality of the primary particles, and thus not only provides excellent cell properties of lithium secondary batteries, such as improved lifespan and reduced gas generation, but also provides excellent density properties to improve energy density.
Resumen de: CN120882588A
The present subject matter relates to a valve (100) comprising a base plate (102). The substrate (102) has a plurality of openings (104-1, 104-2, 104-3, 104-4) provided on a surface of the substrate (102) such that the plurality of openings (104-1, 104-2, 104-3, 104-4) penetrate the height of the substrate (102) and enable gas from below the substrate (102) to be discharged. The exhaust structure (200) is disposed over each of the plurality of openings (104-1, 104-2, 104-3, 104-4). For example, an exhaust structure (200) will be disposed over each of the openings (104-1, 104-2, 104-3, 104-4). And the exhaust structure enables out-of-control gas in the battery pack to be exhausted into the atmosphere.
Resumen de: TW202504145A
The present invention relates to an apparatus (100) and method for discharging spent lithium-ion battery (101). The apparatus (100) of the present invention consists of voltmeter (105) and ammeter (106) to monitor the voltage and current in ampere during discharging, a plurality of timers to control the rate of discharge, a temperature sensor (111) with a cut-off switch to control heat generation during discharging process and to avoid a fire hazard, a temperature panel (107) to display temperature during discharge and an electrolytic unit (102) containing cathode, anode (104) and an electrolyte to utilize the energy during discharge. The present invention provides a simple, cost effective, environment-friendly, easy to operate apparatus and method for discharging spent lithium-ion battery that provides electrolytic grade copper as a recovered product and by which the energy of the spent lithium-ion battery is fully utilized.
Resumen de: EP4682214A1
The present invention relates to a hot-melt adhesive film that is able to join a plurality of adherends while maintaining a certain space therebetween or is able to join a plurality of adherends in an electrically insulated state, as well as a sealing film, a metal terminal, a battery, and a device in which the layer thickness of the sealing film is hardly reduced at the corner portion of an electrode lead wire even when heat-sealing is performed at a high temperature. More specifically, the present invention relates to a hot-melt adhesive film including: a first adhesive layer that adheres to a first adherend; a second adhesive layer that adheres to a second adherend; and a base material layer provided between the first adhesive layer and the second adhesive layer, in which at least the base material layer has a storage elastic modulus at 170°C of 1 × 10<sup>5</sup> Pa or more as measured with a tensile rheometer by a method in accordance with ISO 6721-4:1994, as well as a sealing film that seals between an electrode lead wire electrically connected to a battery body and a housing container that houses the battery body and that includes a first adhesive layer that adheres to the electrode lead wire, a second adhesive layer that adheres to the housing container, and a base material layer provided between the first adhesive layer and the second adhesive layer, in which at least the base material layer has a storage elastic modulus at 170°C of 1 × 10<sup>5
Resumen de: EP4683058A1
A battery cell (20), a battery (10), and an electric apparatus are provided, which can improve the pass rate of assembly of batteries (10). The battery cell (20) includes: a casing (212) having an opening; an end cap (211) closing the opening; and an insulating member (23) disposed within the casing (212), where one of the insulating member (23) and the end cap (211) is provided with a first groove (231), and the other thereof is provided with a first protrusion (213), the first groove (231) and the first protrusion (213) cooperating with each other.
Resumen de: EP4683104A1
A battery cell, a battery, and a power consuming apparatus are provided. A battery cell (61) includes: an electrode assembly (10), including a main body portion (11) and a tab (12), where the tab (12) is led from at least one end that is of the main body portion (11) and that is in a first direction (dr1); a shell (20), having a cavity that accommodates the electrode assembly (10), where the shell (20) includes a housing (21) and a top cover plate (22), at least one end that is of the housing (21) and that is in the first direction (dr1) has an opening portion (21a), the top cover plate (22) covers the opening portion (21a), and the tab (12) is electrically connected to the top cover plate (22); and an insulating portion (30), at least partially disposed at the opening portion (21a), and including a first insulating part (31) located between the opening portion (21a) and the top cover plate (22).
Resumen de: EP4682987A1
The present invention relates to a positive electrode active material capable of simultaneously solving the problems of conventional secondary particles and single particles, and a positive electrode and a lithium secondary battery comprising the same, wherein the positive electrode active material includes a secondary particle containing the same particles as the conventional single particles as primary particles and formed by aggregating a plurality of primary particles, whereby it is possible to improve not only cell characteristics such as improved lifespan of the lithium secondary battery and reduced gas generation but also energy density due to excellent density characteristics.
Resumen de: EP4682986A1
The present invention relates to a positive electrode active material capable of simultaneously solving the problems of conventional secondary particles and single particles, and a positive electrode and a lithium secondary battery comprising the same, wherein the positive electrode active material includes a secondary particle containing the same particles as the conventional single particles as primary particles and formed by aggregating a plurality of primary particles, whereby it is possible to improve not only cell characteristics such as improved lifespan of the lithium secondary battery and reduced gas generation but also energy density due to excellent density characteristics.
Resumen de: EP4683075A1
Provided are an outdoor wheeled tool and a battery pack thereof. A battery pack (100) includes a housing (110); multiple cells (130); and a cell holder (140) configured to support the multiple cells (130). Multiple exhaust channels (151) are disposed in the housing (110). The extension direction of the exhaust channels (151) is basically perpendicular to the extension direction of the cells (130). The energy of the battery pack (100) is greater than or equal to 2 kW·h.
Resumen de: EP4682993A1
The present application relates to a lithium metal negative electrode material, a negative electrode sheet, a lithium metal secondary battery, an electric device, a preparation method, and use. The lithium metal negative electrode material includes lithium-containing metal and a polymer Poly bonded to lithium metal in the lithium-containing metal, the polymer Poly has a linear carbon chain, and a first side chain and a second side chain that are grafted to a side group of the linear carbon chain, the first side chain contains a fluorinated aliphatic chain Rf, and the second side chain contains an EO block.
Resumen de: EP4683081A1
The present application relates to the technical field of explosion-proof sheets, and particularly, to a method for mounting an explosion-proof sheet. The method comprises the following steps: 1) providing an explosion-proof sheet and a fixing ring that defines an enclosed area; connecting the explosion-proof sheet to the fixing ring to seal the enclosed area; and 2) providing a battery housing having an accommodating cavity therein for disposing a battery cell, wherein the top of the accommodating cavity of the battery housing is provided with a top opening for mounting a top cover sheet; the battery housing is provided with a mounting wall arranged in misalignment with the top opening; the mounting wall is provided with a blast hole in communication with the accommodating cavity; the fixing ring is mounted on the mounting wall, and the explosion-proof sheet seals the blast hole. According to the present application, the explosion-proof sheet is first connected to the fixing ring, and then the fixing ring is mounted in the blast hole of the mounting wall of the battery housing. The mounting wall is in misalignment with the top opening of the battery housing and is not mounted on the top cover sheet, which reduces the welding procedures on the top cover sheet and reduces the impact on the performance of the explosion-proof sheet during the welding of lower plastic pieces.
Resumen de: EP4683097A1
Disclosed is a battery. The battery includes a battery cell. The battery cell includes: positive electrode sheets, negative electrode sheets and separators. The positive electrode sheets, the negative electrode sheets and the separators are mutually stacked, the battery cell is formed by winding the positive electrode sheets, the separators and the negative electrode sheets, and the positive electrode sheets, the negative electrode sheets and the separators form a plurality of electrode rings in a radial direction. The positive electrode sheets and the negative electrode sheets each include a sheet body, a bare foil region and a plurality of tabs. The bare foil region is arranged on one side of the sheet body in a height direction, and the plurality of tabs are spaced apart on one side of the bare foil region facing away from the sheet body. A tab ring of an outer one of the electrode rings covers a tab ring of an inner one of the electrode rings. A relatively complete plane is obtained after the tabs of each ring are flattened, thereby forming a flat tab plane internally having no hole caused by stacking of the tabs or an uneven thickness of the tabs.
Resumen de: WO2024236152A1
The invention relates to a battery housing (1) for receiving a plurality of battery components (3, 4), having a first battery housing component (10), a second battery housing component (20), and at least one battery component holder (30) which has a plurality of receiving cavities (31) for receiving the battery components (3, 4). Each of the receiving cavities (31) has an inner wall (311) which extends from a first opening (312) of the respective cavity (31) to a second opening (312) of the respective receiving cavity (31), and the at least one battery component holder (30) is sandwiched between the first battery housing component (10) and the second battery housing component (20) and is connected to each of the battery housing components such that the respective first openings (312) face the first battery housing component (10) and the respective second openings (313) face the second battery housing component (20). The inner walls (311) of the respective receiving cavities (31) each have at least one groove (40) which runs from the first opening (312) to the second opening (313) such that, when a battery component (3, 4) is inserted into the receiving cavity (31), a respective cooling fluid channel (50) is formed which runs from the first opening (312) of the receiving cavity (31) to the second opening (313) of the receiving cavity (31) and which is delimited by the groove (40) and the battery component (3, 4). The invention also relates to a battery (5) having a battery hou
Resumen de: CN120883433A
The invention relates to a membrane assembly comprising a rupture membrane and comprising at least one reinforcing frame, the reinforcing frame being connected to the rupture membrane, the reinforcing frame connected to the rupture membrane being designed to be inserted into a cell housing from the inside and to be connected to the cell housing from the outside by means of a thermal bonding method. The invention also relates to a method for connecting a rupture membrane to a battery cell housing, and to a battery cell having a membrane assembly.
Resumen de: WO2024192206A1
An indicating system apparatus (100) and a method (1000) for ground support equipment (104) for electric aircraft (108). The ground support equipment (104) may include a ground support module (132, 136, 140), configured to support operation of an electric aircraft (108), one or more housings (144a-c) may be configured to house the ground support module (132, 136, 140), a cable module (116a-c) configured to connect the ground support module (132, 136, 140) and the electric aircraft (108), an indicator (148a-c, 160a-c, 164a-c) configured to indicate informatic communication of the ground support module (132, 136, 140) and the cable module (116a-c) and a controller (152) communicatively connected to the ground support module (132, 136, 140) and the cable module (116a-c) and configured to control the indicator (148a-c, 160a-c, 164a-c).
Resumen de: EP4682995A1
The present application belongs to the technical field of batteries and particularly relates to an electrode assembly, a secondary battery, and an electrical apparatus. The electrode assembly includes a positive electrode plate, a negative electrode plate and a separator. The positive electrode plate includes a positive electrode current collector and a positive electrode film layer arranged on at least one side surface of the positive electrode current collector. The positive electrode film layer in the present application includes a nickel-containing compound and a binder. A molar percentage content of a nickel element in the nickel-containing compound based on a total molar amount of transition elements is Y, and a mass percentage content of the binder in the positive electrode film layer is X; and it is satisfied: Y/X<53. The electrode assembly designed in the present application is conducive to improving the safety of a lithium-ion battery.
Resumen de: EP4682973A1
The present disclosure provides a method for detecting a defective cell. The method may include: charging a cell in a manner that the state of charge (SOC) of the cell falls within a reference range, obtaining first charge data including differential voltage information of a negative electrode of the cell while the cell is being charged, where the negative electrode includes graphite and silicon, calculating a charging parameter associated with the silicon of the negative electrode based on the first charge data, and determining whether the cell is defective based on the charging parameter associated with the silicon.
Resumen de: EP4683023A2
An electrode transfer table includes: a base plate; a support portion configured to protrude from the base plate in a vertical direction; and a sheet seating portion configured to protrude from an end of the support portion in a direction facing the base plate and on which an electrode sheet for forming a pair of electrodes may be arranged, wherein the sheet seating portion may include: a first sheet seating portion on which a first electrode of the electrode sheet may be seated; and a second sheet seating portion spaced apart from the first sheet seating portion with a gap therebetween and on which a second electrode of the electrode sheet may be seated.
Resumen de: EP4683039A2
A battery system (100) includes a unit cell (10) including a sulfide-based all-solid-state battery, a battery module (200) in which a plurality of the unit cells (10) is stacked between a pair of restraining members (31, 32), an intermediate plate (60) disposed between the stacked unit cells (10), a detection unit configured to detect a load applied to the intermediate plate (60), and an estimation unit (300) configured to estimate generation of hydrogen sulfide in the unit cell (10), based on a change in load applied to the intermediate plate (60).
Nº publicación: EP4683036A1 21/01/2026
Solicitante:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]
Contemporary Amperex Technology Co., Limited
Resumen de: EP4683036A1
This application discloses a charging method and apparatus, an electronic device, and a computer-readable storage medium, where the method includes: charging a secondary battery; and under a condition that a battery voltage of the secondary battery reaches a first cutoff voltage, performing constant-voltage charging on the secondary battery, and terminating the constant-voltage charging when a charging current of the secondary current reaches a target current; where the target current is greater than a first current, and the first current refers to a current at which a capacity of the secondary battery reaches a fully charged state during constant-voltage charging. A positive electrode active material of the secondary battery includes LiMPO<sub>4</sub>, where M includes Mn and Fe elements.
BOPI
Sede Electrónica
