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公开(公告)号：US11777162B2
公开(公告)日：2023-10-03
申请号：US16976752
申请日：2019-09-12
发明人： Fenggang Zhao , Yuqun Zeng , Jian Guo , Quankun Li , Peng Wang
IPC分类号： H01M50/148 , H01M50/55 , H01M50/553 , H01M50/176 , H01M50/593 , H01M50/588
CPC分类号： H01M50/148 , H01M50/176 , H01M50/55 , H01M50/553 , H01M50/588 , H01M50/593
摘要： The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate provided with an electrode lead-out hole; an electrode terminal, covering the electrode lead-out hole and including a main body, wherein the main body is provided with a recess on a side wall; an isolating member including a receiving portion, wherein the main body is received in the receiving portion; and a protrusion, connected to an inner wall of the isolating member and extending towards an axis of the electrode lead-out hole, wherein the protrusion is received in the recess so as to prevent the main body from rotating relative to the isolating member. The cap assembly according to the embodiments of the present application can improve an overcurrent capacity and stability of the electrode terminal.
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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：US11594791B2
公开(公告)日：2023-02-28
申请号：US16666754
申请日：2019-10-29
发明人： Yuqun Zeng , Fenggang Zhao , Qingyuan Jiang , Bo Han , Jiacai Cai , Qinglin Bai , Yuqian Wen , Zhiyang Wu
IPC分类号： H01M50/543 , H01M4/66 , H01M50/172 , H01M50/531
摘要： The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. The secondary battery includes: a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and including a first metal layer and a second metal layer disposed one on top of another; and a current collecting member, connected between the tab and the electrode terminal.
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公开(公告)号：US12119503B2
公开(公告)日：2024-10-15
申请号：US18237902
申请日：2023-08-25
发明人： Fenggang Zhao , Yuqun Zeng , Jian Guo , Quankun Li , Peng Wang
IPC分类号： H01M50/148 , H01M50/176 , H01M50/55 , H01M50/553 , H01M50/588 , H01M50/593
CPC分类号： H01M50/148 , H01M50/176 , H01M50/55 , H01M50/553 , H01M50/588 , H01M50/593
摘要： The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate provided with an electrode lead-out hole; an electrode terminal, covering the electrode lead-out hole and including a main body, wherein the main body is provided with a recess on a side wall; an isolating member including a receiving portion, wherein the main body is received in the receiving portion; and a protrusion, connected to an inner wall of the isolating member and extending towards an axis of the electrode lead-out hole, wherein the protrusion is received in the recess so as to prevent the main body from rotating relative to the isolating member. The cap assembly according to the embodiments of the present application can improve an overcurrent capacity and stability of the electrode terminal.
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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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6.发明授权公开(公告)号：US11923551B2
公开(公告)日：2024-03-05
申请号：US18048454
申请日：2022-10-21
发明人： Yuqun Zeng , Chengyou Xing , Wenlong Kang , Huasheng Su , Quankun Li
IPC分类号： H01M50/152 , H01M10/04 , H01M50/164
CPC分类号： H01M50/152 , H01M10/0409 , H01M50/164
摘要： Embodiments provide a battery cell, a battery, an electric apparatus, and a manufacturing method and system of battery cell. In those embodiments, the battery cell includes a housing, an electrode assembly, and an end cover assembly. The housing provides an opening. The electrode assembly is disposed in the housing. The electrode assembly includes a body portion and a tab. The tab extends from an end of the body portion to the opening. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The first electrode plate and the second electrode plate each have a coated area and an uncoated area. A part of the electrode assembly corresponding to the coated areas of the first electrode plate and the second electrode plate is the body portion. The uncoated area of the first electrode plate or the second electrode plate forms the tab.
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公开(公告)号：US11611128B2
公开(公告)日：2023-03-21
申请号：US17113018
申请日：2020-12-05
发明人： Yuqun Zeng , Zhimin Zeng , Kai Wu , Xingdi Chen , Peng Wang , Zhanyu Sun
IPC分类号： H01M50/375 , H01M50/342 , H01M10/6567 , H01M50/24 , H01M50/325 , H01M50/593 , H01M10/0525
摘要： The present application discloses a battery and a related apparatus, production method and production device therefor. The battery includes: a battery cell, the battery cell including a pressure relief mechanism configured to be capable of being actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; an attachment component adapted to be attached to the battery cell by an adhesive; and an isolation component configured to be capable of preventing the adhesive from being applied between the attachment component and the pressure relief mechanism. By providing the isolation component, it is possible to prevent the adhesive from being applied between the attachment component and the pressure relief mechanism in an effective manner in a process of battery production. Meanwhile, application efficiency and accuracy of the adhesive could be improved, thereby improving production efficiency of the battery.
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公开(公告)号：US11581610B2
公开(公告)日：2023-02-14
申请号：US17113010
申请日：2020-12-05
发明人： Yuqun Zeng , Jianxiong Yang , Peng Wang , Zhijun Guo , Quankun Li , Zhanyu Sun
IPC分类号： H01M50/30 , H01M10/42 , H01M10/613 , H01M50/249 , H01M50/271 , H01M10/647 , H01M10/0525
摘要： Disclosed are a battery box, a battery cell, a battery, and a method and apparatus for preparing the battery box. The battery box includes a pressure relief region including a first recess arranged at an inner surface of the battery box and a second recess arranged at an outer surface of the battery box, the first recess being arranged opposite to the second recess, wherein a third recess is provided at a bottom wall of the first recess and/or a bottom wall of the second recess, and the pressure relief region is configured to fracture at the third recess, when an internal pressure of the battery box reaches a threshold, to relieve the internal pressure. According to the battery box, the battery cell, the battery, and the method and apparatus for preparing the battery box disclosed in the present application, the pressure relief region is easy to machine.
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公开(公告)号：US11048316B2
公开(公告)日：2021-06-29
申请号：US16357552
申请日：2019-03-19
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 power-down detection circuit and a control method. A low-voltage side power supply is connected to provide an output voltage of the low-voltage side power supply to a power-down detection sub-circuit and provide a standard supply voltage to the power-down detection sub-circuit, a controller and a memory via a voltage conversion circuit. The power-down detection sub-circuit is configured to obtain the output voltage of the low-voltage side power supply, and determine, according to the output voltage of the low-voltage side power supply, whether a power-down event occurs in the low-voltage side power supply. If it is determined that a power-down event occurs, a power-down signal is sent to the controller. The controller receives the power-down signal, and controls the memory to record current information of a high voltage bus sensed by a high-voltage side current sensor.
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10.发明公开公开(公告)号：US20230282836A1
公开(公告)日：2023-09-07
申请号：US18317943
申请日：2023-05-16
发明人： Yuqun Zeng
IPC分类号： H01M4/62 , H01M4/66 , H01M4/38 , H01M10/0569 , H01M10/0567 , H01M4/134
CPC分类号： H01M4/625 , H01M4/661 , H01M4/623 , H01M4/382 , H01M10/0569 , H01M10/0567 , H01M4/134 , H01M2300/0037
摘要： A lithium metal negative electrode plate, an electrochemical apparatus, and an electronic device are provided. In some embodiments, the lithium metal negative electrode plate includes copper foil and a carbon material coating layer formed on at least part of a surface of the copper foil, where thickness of the carbon material coating layer is less than or equal to 10 μm, and the carbon material coating layer includes a carbon material and a polymer binder. The lithium metal negative electrode plate, the electrochemical apparatus, and the electronic device provided in this application can effectively suppress formation and growth of lithium dendrites, thereby significantly improving first-cycle charge-discharge coulombic efficiency, cycling stability performance, and safety performance of batteries.
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