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公开(公告)号：US11495861B2
公开(公告)日：2022-11-08
申请号：US17358037
申请日：2021-06-25
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Lei Wang , Linggang Zhou , Xingdi Chen , Peng Wang , Derong Wang
IPC: H01M50/20 , H01M10/613 , H01M10/625 , H01M10/6554 , H01M10/6556 , B60K1/04
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：US11482761B2
公开(公告)日：2022-10-25
申请号：US16794894
申请日：2020-02-19
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Quankun Li , Peng Wang , Taosheng Zhu , Baisong Chen
IPC: H01M50/528 , H01M50/147 , H01M50/148 , H01M50/155 , H01M50/172 , H01M50/502 , H01M50/543 , H01M10/42 , H01M50/538 , H01M10/052
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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公开(公告)号：US11335979B2
公开(公告)日：2022-05-17
申请号：US16708216
申请日：2019-12-09
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yulian Zheng , Chengyou Xing , Peng Wang , Taosheng Zhu , Fenggang Zhao
IPC: H01M4/00 , H01M50/538 , H01M50/50 , H01M50/148 , H01M50/155 , H01M50/529 , H01M50/531 , H01M50/543 , H01M10/04
Abstract: The present disclosure provides a secondary battery which comprises a cap plate, an electrode assembly and a first protecting piece. The cap plate comprises a first electrode terminal. The electrode assembly comprises a main body and a first electrode tab. The first electrode tab is electrically connected with the first electrode terminal. The first electrode tab includes a first connecting portion and a first bending portion, the first connecting portion is electrically connected with the first electrode terminal, and the first bending portion connects the main body and the first connecting portion. The first protecting piece is fixed to a bottom of the first connecting portion. The first protecting piece includes a main portion and a first curve portion, the first curve portion is connected with the main portion and is curved relative to the main portion. The first bending portion is bent downwardly along the first curve portion.
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公开(公告)号：US11335969B2
公开(公告)日：2022-05-17
申请号：US17360555
申请日：2021-06-28
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuepan Hou , Xingdi Chen , Linggang Zhou , Peng Wang , Kaijie You
IPC: H01M50/342 , H01M10/613 , H01M10/6554 , A62C3/07 , A62C3/16 , H01M10/6568 , A62C35/10 , H01M10/6556 , H01M50/209 , H01M50/55
Abstract: The present application provides a battery module, which includes: a plurality of batteries, each battery including a top cover, and a first electrode terminal, a second electrode terminal and an explosion-proof valve being disposed on the top cover in a width direction; and a first heat exchange plate including: a first main body portion and a first bending portion bending from an upper side of the first main body portion to the plurality of batteries in the width direction; the first bending portion covers explosion-proof valves of at least some of the batteries in the width direction, a flow channel for flow of a heat exchange medium is disposed in the first bending portion, and the first bending portion is configured to be capable of leaking the heat exchange medium in the flow channel after being melted.
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公开(公告)号：US11296391B2
公开(公告)日：2022-04-05
申请号：US16780753
申请日：2020-02-03
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jiajun Wang , Youlei Lai , Yulian Zheng , Peng Wang , Tianjun Xia
IPC: H01M50/581 , H01M50/155 , H01M50/172 , H01M50/147
Abstract: The present disclosure provides a secondary battery and an assembly therefor. The secondary battery includes: a cap plate provided with a first electrode terminal; electrode assemblies, each electrode assembly comprising a first 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 includes an insulating holding block 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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Patent Agency Ranking
公开(公告)号：US11251487B2
公开(公告)日：2022-02-15
申请号：US16441895
申请日：2019-06-14
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Peng Wang , Haizu Jin , Linggang Zhou , Dongyang Shi , Xingdi Chen , Kaijie You
Abstract: Disclosed is a battery module including a battery cell array structure, an upper cap and a lower cap, the battery cell array structure is disposed between the upper cap and the lower cap. Each battery cell includes an electrode assembly and a battery case. The electrode assembly is of a wound structure and flat, outer surface of the electrode assembly includes two flat surfaces facing each other in a vertical direction; or the electrode assembly is of a laminated structure, the first electrode plate, the separator and the second electrode plate are laminated in the vertical direction. Being distinguished from the existing technology, the maximum swelling force of the battery module may be reduced, thus end plates with smaller volumes may be selected to improve energy density of the battery module.
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公开(公告)号：US11139527B2
公开(公告)日：2021-10-05
申请号：US17129572
申请日：2020-12-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuqun Zeng , Fenggang Zhao , Xingdi Chen , Lei Wang , Linggang Zhou , Peng Wang , Derong Wang , Cong Bao
IPC: H01M50/20 , H01M50/249 , H01M50/242 , H01M50/244 , B60K1/04 , B60L50/60 , B65D21/02
Abstract: The present disclosure provides a lower box body, a battery box and a vehicle, the lower box body comprises a base body, a first protecting assembly, a mounting hole. The base body comprises a bottom plate portion, a side plate portion, eave portions. The first protecting assembly is provided at outside of the base body, fixed to the base body and is attached to the eave portion. The mounting hole penetrates the eave portion and the first protecting assembly. The first protecting assembly improves the entirety structural strength of the lower box. Because the mounting hole is formed by penetrating the eave portion and the first protecting assembly, the structural stability of the mounting location of the lower box body is improved, thereby making the mounting location of the lower box body not be prone to be deformed or damaged when the battery box is subjected to the external force.
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公开(公告)号：US11139526B2
公开(公告)日：2021-10-05
申请号：US17129559
申请日：2020-12-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuqun Zeng , Fenggang Zhao , Xingdi Chen , Lei Wang , Linggang Zhou , Peng Wang
Abstract: The present disclosure provides a battery box and a vehicle, the battery box comprises an upper box body, a lower box body, a connecting member, a fixing member. The upper box body comprises a first eave portion, the lower box body comprises a second eave portion. The first eave portion is provided with a first connecting hole, the second eave portion is provided with a second connecting hole and a mounting hole. The connecting member passes through the first connecting hole and the second connecting hole to connect the upper box body and the lower box body. The fixing member passes through the mounting hole to make the lower box body mounted to external equipment, compared with the conventional battery box, the lower box body is equivalent to the arrangement of eliminating the third eave portion, it simplifies the structure and reduces the weight, thereby improving the energy density.
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公开(公告)号：US11114716B1
公开(公告)日：2021-09-07
申请号：US17136786
申请日：2020-12-29
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Xinxiang Chen , Peng Wang , Yuanbao Chen , Zhijun Guo , Yulian Zheng , Chengdu Liang , Wei Li
IPC: H01M50/148 , H01M50/183 , H01M10/058 , H01M50/636 , H01M10/0525
Abstract: A secondary battery, a battery pack and a device using the battery are provided, wherein the end cover assembly includes: an end cover with a through hole for injection of electrolyte and an accommodating part, the accommodating part is arranged on a side far away from a shell of the end cover and is arranged along a circumferential direction of the through hole; a sealing element; and a cover body for covering at least part of the sealing element, the cover body is rotatable and includes a limiting part; when the cover body rotates to a first position, the limiting part is located inside the accommodating part to limit separation of the cover body from the end cover; when the cover body rotates to a second position, the limiting part and the accommodating part are misplaced to realize separation of the cover body from the end cover.
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公开(公告)号：US11101519B2
公开(公告)日：2021-08-24
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: H01M50/20 , H01M10/613 , H01M10/625 , H01M10/6554 , H01M10/6556 , B60K1/04
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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