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公开(公告)号：US12068459B2
公开(公告)日：2024-08-20
申请号：US17489116
申请日：2021-09-29
发明人： Peng Wang , Xingdi Chen , Mingdi Xie , Linggang Zhou , Zhanyu Sun , Kai Wu
IPC分类号： H01M10/42 , B60L50/64 , H01M10/48 , H01M10/653 , H01M50/103 , H01M50/119 , H01M50/209 , H01M50/249 , H01M50/291 , H01M50/543
CPC分类号： H01M10/4207 , B60L50/64 , H01M10/4235 , H01M10/482 , H01M10/653 , H01M50/103 , H01M50/119 , H01M50/209 , H01M50/249 , H01M50/291 , H01M50/543 , H01M2220/20
摘要： A failed battery cell handling method, a battery module, a battery pack, and a device, which relates to the technical field of energy devices. The handling method includes: injecting a conductive material into a failed battery cell, where the conductive material is in a molten state when being injected, and is in a solid state after cooling, and the conductive material is configured to electrically connect a positive terminal and a negative terminal of the failed battery cell.
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公开(公告)号：US20240243444A1
公开(公告)日：2024-07-18
申请号：US18623015
申请日：2024-03-31
发明人： Kai Wu , Zige Zhang , Qingrui Xue , Wei Li , Yu Zhang , Zhengyuan Zhao
IPC分类号： H01M50/533 , H01M50/103 , H01M50/15 , H01M50/474 , H01M50/536
CPC分类号： H01M50/533 , H01M50/103 , H01M50/15 , H01M50/474 , H01M50/536
摘要： Provided are an electrode plate, an electrode assembly, a battery cell, a battery, and an electric device. The electrode plate includes: a current collector, where the current collector includes an insulation layer and a conductive layer disposed on an outer surface of the insulation layer, and the conductive layer includes a body portion and a tab portion arranged along a first direction; and a conductive structure, where the conductive structure is welded to the tab portion to form a welded zone, the conductive structure extends in a direction leaving the body portion, and in a second direction, a size of an end of the welded zone near the body portion is greater than a preset threshold, where the preset threshold is inversely related to thickness of the tab portion in a third direction, and the second direction is perpendicular to the first direction and parallel to the tab portion.
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公开(公告)号：US11598799B2
公开(公告)日：2023-03-07
申请号：US17083330
申请日：2020-10-29
发明人： Yuqun Zeng , Kai Wu , Wei Dai , Chao Wang , Qiandeng Li
摘要： The present disclosure provides a high-voltage interlock system and a detection method thereof. The high-voltage interlock system includes a target control device and at least one non-target control device connected in sequence. The target control device includes a detection unit, a current generation controller, a current generator, and a second high-voltage component. A controller in the target control device generates a pulse drive signal for driving the current generation controller, receives a detection result signal output from a current detector, and determines a fault of a high-voltage interlock circuit according to the detection result signal; the current generation controller generates an alternating voltage signal according to the pulse drive signal; the current generator outputs an alternating current signal according to the alternating voltage signal; the current detector acquires a voltage signal across a detection resistor set and outputs the detection result signal.
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公开(公告)号：US20210263580A1
公开(公告)日：2021-08-26
申请号：US17315260
申请日：2021-05-07
发明人： Yuqun ZENG , Kai Wu , Le Chu , Jianwei Zhuo , Qiandeng Li
IPC分类号： G06F1/3225 , G06F1/26 , G06F1/30 , G06F1/3234
摘要： The present application provides a method for controlling a power-down detection circuit, a controller and a computer readable storage medium. The method includes: receiving, by a controller of a power-down detection circuit, a power-down signal, wherein the power-down signal is sent from a power-down detection sub-circuit of the power-down detection circuit when it is determined by the power-down detection sub-circuit that an output voltage of a low-voltage side power supply of the power-down detection circuit is smaller than a threshold, and wherein the power-down detection sub-circuit and the controller are powered by the low-voltage side power supply; controlling, by the controller, a memory of the power-down detection circuit to record fault information, wherein the fault information comprises current information of a high voltage bus sensed by a high-voltage side current sensor of the power-down detection circuit; and performing, by the controller, a fault diagnosis based on the fault information.
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公开(公告)号：US10411225B2
公开(公告)日：2019-09-10
申请号：US15649953
申请日：2017-07-14
发明人： Baisong Chen , Peng Wang , Kai Wu , Zhiyu Wang , Xiaobo Chen
摘要： A cap structure of a power battery includes first and second electrode components, a cap plate attached to the first and second electrode components, and a turnable plate connected to the second electrode component. The first electrode component is electrically isolated from the cap plate and includes a first terminal and a first connecting block. The first connecting block is located above the cap plate and includes a terminal connecting portion, a fusing portion, and a turnable plate connecting portion. In case that an internal pressure of the power battery exceeds a reference pressure, the turnable plate is turned over and in contact with the turnable plate connecting portion, such that the first terminal is electrically connected to the second electrode component.
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公开(公告)号：US20240326920A1
公开(公告)日：2024-10-03
申请号：US18733884
申请日：2024-06-05
发明人： Xiaowei Sun , Kai Wu , Liwen Jiang
CPC分类号： B62D25/025 , B60K1/04 , B62D27/06 , B60K2001/0438
摘要： A body connection assembly and a vehicle are disclosed. The body connection assembly includes: a floor panel, including a conduit; a rocker rail, located on one side of the floor panel along a first direction, where the rocker rail is configured to be connected to a body; a mounting side rail, connected to a side of the rocker rail, the side being close to the floor panel; and a battery, at least partially located below the floor panel and mounted on a side of the mounting side rail along the first direction, the side being away from the rocker rail. The battery includes a box assembly. The box assembly includes an upper box. The upper box closes the conduit.
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7.发明公开公开(公告)号：US20240274805A1
公开(公告)日：2024-08-15
申请号：US18636204
申请日：2024-04-15
发明人： Kai Wu , Zijian Lv , Jiazheng Wang , Liangbin Liu , Jingxian Deng
CPC分类号： H01M4/386 , H01M4/0421 , H01M4/364 , H01M4/366 , H01M4/583 , H01M2004/021 , H01M2004/027
摘要： The present application provides a negative electrode active material, a secondary battery comprising the same and an electrical device, wherein the negative electrode active material comprises a matrix material and a silicon-based material, the matrix material comprises a plurality of pore structures, at least a part of the silicon-based material is located in pore structures of the matrix material, at least a part of the silicon-based material has a crystalline structure, the silicon-based material comprises a first silicon-based material and a second silicon-based material with different grain sizes, and a ratio of grain size of the first silicon-based material to grain size of the second silicon-based material is greater than or equal to 1.6. The negative electrode active material can result in a secondary battery having high energy density, high First Coulombic Efficiency, long cycle life and long storage life at the same time.
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公开(公告)号：US11955654B2
公开(公告)日：2024-04-09
申请号：US17123092
申请日：2020-12-15
发明人： Yuqun Zeng , Pengcheng Yao , Zhimin Zeng , Kai Wu , Xingdi Chen , Peng Wang , Xiaobo Chen
IPC分类号： H01M50/30 , H01M10/42 , H01M10/613 , H01M10/647 , H01M10/6567 , H01M50/249 , H01M50/271 , H01M50/618 , H01M10/0525
CPC分类号： H01M50/30 , H01M10/42 , H01M10/613 , H01M10/647 , H01M10/6567 , H01M50/249 , H01M50/271 , H01M50/618 , H01M10/0525
摘要： The present application discloses a battery, and a related device, preparation apparatus thereof. The battery includes a battery cell, the battery cell including a pressure relief mechanism and at least two walls, the at least two walls including a first wall and a second wall that intersect with each other, the pressure relief mechanism being disposed at the first wall and being configured to, when an internal pressure or temperature of the battery cell reaches a threshold, be actuated to release the internal pressure; a thermal management component attached to the first wall and being configured to accommodate a fluid to cool the battery cell; and a support component attached to the second wall, and configured to support the battery cell; wherein the thermal management component is configured such that when the pressure relief mechanism is actuated, emissions discharged from the battery cell pass through the thermal management component.
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9.发明公开公开(公告)号：US20230246223A1
公开(公告)日：2023-08-03
申请号：US18180858
申请日：2023-03-09
发明人： Kai Wu , Chengyou Xing , Wenlong Kang , Huasheng Su , Quankun Li
IPC分类号： H01M10/04 , H01M50/152 , H01M50/538
CPC分类号： H01M10/0422 , H01M10/0409 , H01M50/152 , H01M50/538
摘要： A cylindrical battery cell, a battery, an electricity consuming device, a manufacturing method and a manufacturing system are provided. The cylindrical battery cell includes a shell, including an opening; and an electrode assembly, disposed in the shell, the electrode assembly including a separator and a tab, and along an axial direction of the electrode assembly, the tab being located at one end of the electrode assembly and extending toward the opening, the tab including a first portion and a second portion, the second portion surrounding a periphery of the first portion, and the separator wrapping the second portion to isolate the second portion from the shell, wherein along the axial direction, the first portion extends beyond the second portion and the separator, and the second portion does not extend beyond the separator. The battery cell of the present application solves a problem of short circuit in the battery cell.
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公开(公告)号：US20230191870A1
公开(公告)日：2023-06-22
申请号：US18087716
申请日：2022-12-22
发明人： Yu ZHAO , Yao Liu , Zhengzhu Zhou , Liwen Jiang , Kai Wu
CPC分类号： B60H1/00392 , B60H1/00899 , B60H1/00485 , B60H1/3228 , B60H1/143 , B60K2001/005
摘要： This application relates to an electric vehicle, a thermal management system, and a method for controlling same. The thermal management system includes: a passenger compartment thermal management subsystem, including a compressor, a first throttle, and an evaporator configured to refrigerate the passenger compartment, where the compressor, the first throttle, and the evaporator are controlled to communicate with each other in sequence to form a first refrigerant circuit, the passenger compartment thermal management subsystem further includes a condenser, and the condenser is disposed between the compressor and the first throttle and able to exchange heat with the first refrigerant circuit; a heat emitting component thermal management subsystem, including a heat emitting component and a cooling water tank configured to cool the heat emitting component, and a control valve system, connected to the passenger compartment thermal management subsystem and the heat emitting component thermal management subsystem.
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