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公开(公告)号：US11050109B2
公开(公告)日：2021-06-29
申请号：US16422863
申请日：2019-05-24
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Shengshen Ruan , Peng Wang
IPC: H01M2/10 , H01M10/613 , H01M50/20
Abstract: The disclosure relates to a cell supervision circuit and a battery pack. The cell supervision circuit comprises a circuit board; a heat transfer unit including a metal plate disposed adjacent to the circuit board, wherein the heat transfer unit dissipates heat through the metal plate; and a fixing plate connected to the heat transfer unit, wherein the fixing plate includes a body portion and an elastic portion formed on the body portion, and the elastic portion is used for filling a gap between the metal plate and the fixing plate. In the cell supervision circuit according to the embodiment of the disclosure, the problem of heat resistance instability generated during heat dissipation is solved, and the heat dissipation effect of the cell supervision circuit is improved.
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公开(公告)号：US20210043897A1
公开(公告)日：2021-02-11
申请号：US17082062
申请日：2020-10-28
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Cong Bao , Chao Long , Chenzhi Lu , Peng Wang
Abstract: The disclosure relates to a fixing band for a battery module and a battery module. The fixing band comprises a first end portion, a connecting section and a second end portion which are arranged successively in an extending direction of the fixing band. The first end portion includes a body and engaging grooves which are protruded in a thickness direction of the body. The engaging grooves are integral with the body. The second end portion has engaging protrusions which are shaped to match the engaging grooves. The first end portion and the second end portion are laminated in the thickness direction and are engaged with each other by the engaging grooves and the engaging protrusions, so that the fixing band encloses an annular accommodation space.
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公开(公告)号：US10811643B2
公开(公告)日：2020-10-20
申请号：US15969652
申请日：2018-05-02
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhijun Guo , Jie Zhang , Taosheng Zhu , Peng Wang , Guowei Li
Abstract: The present disclosure provides a battery cap assembly, a secondary battery and a battery module. The battery cap assembly comprises a cap plate, a first electrode terminal and a first sealing member. The cap plate includes a first terminal hole. The first electrode terminal includes a first protruding portion and a first base portion, a cross-sectional area of the first protruding portion is larger than a cross-sectional area of the first terminal hole. The first sealing member includes a first main portion, the first main portion includes a first through-hole. The first protruding portion is used for welding with a first connecting piece to form a welding portion, a projection of the welding portion is positioned in the first through-hole. The secondary battery comprises a case, the battery cap assembly and an electrode assembly. The battery module comprises the first connecting piece and the secondary batteries.
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公开(公告)号：US20200161616A1
公开(公告)日：2020-05-21
申请号：US16427934
申请日：2019-05-31
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Lei WANG , Linggang Zhou , Xingdi Chen , Peng Wang , Derong Wang
IPC: H01M2/10 , B60K1/04 , H01M10/613 , H01M10/625 , H01M10/6556 , H01M10/6554
Abstract: The present disclosure relates to a casing for a battery pack and a battery pack. The casing has a receiving space and an opening in communication with the receiving space, the receiving space is formed by a wall portion of the casing, and the wall portion is formed from two or more stacked base plates, between which a plurality of cavities are formed. By forming a plurality of cavities in the wall portion, the casing for a battery pack provided by the present disclosure not only can improve the bearing capacity and the impact resistance of the casing, but also can achieve a thermal management of the battery assembly by filling the plurality of cavities with a phase change material or cooling liquid, which can further improve the mechanical property of the casing with a relatively light weight and relatively high reliability.
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公开(公告)号：US10608232B2
公开(公告)日：2020-03-31
申请号：US15894779
申请日：2018-02-12
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Quankun Li , Peng Wang , Taosheng Zhu , Baisong Chen
Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes: a shell having an opening; an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a cap assembly including a cap plate and a first electrode terminal; a lower insulator located at a side of the cap plate away from the terminal board; and a wiring board including a main body portion and an extension portion, wherein the main body portion is located at a side of the lower insulator away from the cap plate and connected to the first electrode plate, the extension portion extends into the electrode lead-out hole and connected to the first electrode terminal, the first electrode plate is electrically connected to the first electrode terminal through the wiring board, and the first electrode terminal does not extend beyond a lower surface of the lower insulator.
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Patent Agency Ranking
公开(公告)号：US10601023B2
公开(公告)日：2020-03-24
申请号：US15816991
申请日：2017-11-17
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jiajun Wang , Youlei Lai , Yulian Zheng , Peng Wang , Tianjun Xia
Abstract: The present disclosure provides a secondary battery and an assembly therefor. The secondary battery comprises: a cap plate provided with a first electrode terminal and a second electrode terminal; an electrode assembly comprising a first electrode tab and a second electrode tab; a first connecting piece connected between the first electrode tab and the first electrode terminal. The first connecting piece includes a first electrode terminal connecting portion, a first electrode tab connecting portion and a first fusing portion. The secondary battery further comprises an insulating holding block, two ends of which are connected with the first electrode terminal connecting portion and the first electrode tab connecting portion respectively, and the insulating holding block is configured to maintain the first electrode terminal connecting portion and the first electrode tab connecting portion in position relative to each other when the first fusing portion is fused.
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公开(公告)号：US10601001B2
公开(公告)日：2020-03-24
申请号：US15686075
申请日：2017-08-24
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Baisong Chen , Zhiyu Wang , Peng Wang
Abstract: A secondary battery, including a first terminal assembly, a second terminal assembly, a top cover plate, an electrode assembly and a first sealing piece; at least one of the first and second terminal assemblies is electrically insulated from the top cover plate; the first terminal assembly includes a connecting plate and deformable plate, the connecting plate is located at a side of the top cover plate away from the electrode assembly, the deformable plate is attached to the connecting plate; the first sealing piece is connected between the connecting plate and the top cover plate; in normal state, the first electrode plate is electrically connected with the connecting plate via the deformable plate, the second plate is electrically connected with the second terminal assembly; when internal pressure of the secondary battery exceeds reference pressure, the deformable plate can deform to electrically disconnect from the first electrode plate.
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公开(公告)号：US20190305269A1
公开(公告)日：2019-10-03
申请号：US16299239
申请日：2019-03-12
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Cong BAO , Chao Long , Chenzhi Lu , Peng Wang
Abstract: The disclosure relates to a fixing band for a battery module and a battery module. The fixing band comprises a first end portion, a connecting section and a second end portion which are arranged successively in an extending direction of the fixing band. The first end portion includes a body and engaging grooves which are protruded in a thickness direction of the body. The engaging grooves are integral with the body. The second end portion has engaging protrusions which are shaped to match the engaging grooves. The first end portion and the second end portion are laminated in the thickness direction and are engaged with each other by the engaging grooves and the engaging protrusions, so that the fixing band encloses an annular accommodation space.
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公开(公告)号：US10418618B2
公开(公告)日：2019-09-17
申请号：US15479216
申请日：2017-04-04
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhiyu Wang , Peng Wang , Rulai Cai , Baisong Chen
Abstract: The present application relates to a top cover structure for a power battery and a power battery, the top cover structure includes a first electrode assembly, a second electrode assembly, a first resistor, a second resistor, a top cover plate, a first short circuit component and a second short circuit component, the first electrode assembly is electrically connected with the top cover plate through the first resistor for all time, the first short circuit component and the second short circuit component are both attached onto the top cover plate, when an internal pressure of the power battery exceeds a reference pressure, the first short circuit component and the second short circuit component deform by effect of pressure, so as to form a first electrical connecting path and a second electrical connecting path, the second resistor is connected into the first electrical connecting path in series.
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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
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Baisong Chen , Peng Wang , Kai Wu , Zhiyu Wang , Xiaobo Chen
Abstract: 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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