公开(公告)号：US20220013856A1

公开(公告)日：2022-01-13

申请号：US17113067

申请日：2020-12-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun ZENG ,  Xiaobo CHEN ,  Peng WANG ,  Yao LI ,  Chengdu LIANG ,  Yongshou LIN

IPC: H01M50/342 ,  H01M10/04 ,  H01M10/6556 ,  H01M10/0525 ,  H01M10/625

Abstract: The present application discloses a battery including a battery cell, a thermal management component, an avoidance chamber and a collection chamber. The battery cell includes a pressure relief mechanism; the thermal management component is configured to adjust a temperature of the battery cell; the avoidance chamber is configured to provide a space allowing the pressure relief mechanism to be actuated; and the collection chamber is configured to collect emissions from the battery cell when the pressure relief mechanism is actuated. The thermal management component is configured such that emissions are capable of passing through the thermal management component when the pressure relief mechanism is actuated, and then entering the collection chamber through the avoidance chamber. Therefore, the pressure relief mechanism may not need to be provided on a side of an electrode terminal of the battery cell and emissions relieved by the pressure relief mechanism may be collected.

公开(公告)号：US20210399372A1

公开(公告)日：2021-12-23

申请号：US17462741

申请日：2021-08-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang LI ,  Yulian ZHENG ,  Peng WANG ,  Shoujun HUANG ,  Xinxiang CHEN

IPC: H01M50/188 ,  B60K1/04 ,  H01M50/147 ,  H01M50/209 ,  H01M50/543

Abstract: This application relates to a secondary battery, a battery column, and an apparatus. The secondary battery includes a top cover plate, having an outer surface and an inner surface disposed opposite each other in a thickness direction of the top cover plate and an electrode lead-out hole extending along the thickness direction; a pole, disposed in the electrode lead-out hole, where the pole includes a first metal layer and a second metal layer, and the first metal layer and the second metal layer are stacked along a direction from the inner surface to the outer surface; an insulation member, disposed between the top cover plate and the pole; and a first bonding layer, disposed between the insulation member and the first metal layer, where the insulation member is hermetically connected to the first metal layer through the first bonding layer.

公开(公告)号：US20210359381A1

公开(公告)日：2021-11-18

申请号：US17388039

申请日：2021-07-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuyong LEI ,  Chengyou XING ,  Peng WANG

IPC: H01M50/54 ,  H01M50/176 ,  H01M50/147 ,  H01M50/528 ,  H01M50/543

Abstract: The present application provides a secondary battery, which includes a first electrode assembly, a second electrode assembly, a case, and a top cap assembly. The top cap assembly includes a top cap plate and a first electrode terminal, the top cap plate is connected to the case, and the first electrode terminal is arranged on the top cap plate. The first electrode assembly includes a first body and first tabs extending from the first body, and the first tabs are multiple and stacked. The second electrode assembly includes a second body and second tabs extending from the second body, and the second tabs are multiple and stacked. An end of each of the second tabs that is away from the second body is a second end portion. Each of the first tabs includes a first connecting portion extending beyond the second end portion.

公开(公告)号：US20210184381A1

公开(公告)日：2021-06-17

申请号：US17179227

申请日：2021-02-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO, LIMITED

Inventor： Jianwei LI ,  Libing CHAN ,  Linggang ZHOU ,  Zhiqin WENG ,  Shengshen RUAN ,  Peng WANG

IPC: H01R13/05 ,  H01R13/627 ,  H01R13/631 ,  H01M50/528

Abstract: The present disclosure provides a battery product and an assembling method of the battery product, the battery product comprises a box and a heating connector. The box comprises a mounting panel. The mounting panel has a first receptacle portion and a second receptacle portion, and the second receptacle portion and the first receptacle portion are provided opposite to each other and communicating with each other. The heating connector comprises: a first plug assembly being mounted on the first receptacle portion; and a second plug assembly being mounted on the second receptacle portion. Compared with the technology related to the background, the battery product is equivalent to directly integrating the receptacle of the heating connector on the mounting panel, which not only eliminates the manner of fixing by the bolt, but also improves the integration of the battery product, thereby improving the space utilization and energy density.

公开(公告)号：US20210091354A1

公开(公告)日：2021-03-25

申请号：US17111126

申请日：2020-12-03

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Lei WANG ,  Linggang ZHOU ,  Xingdi CHEN ,  Peng WANG ,  Derong WANG

IPC: H01M2/10 ,  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 includes 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.

公开(公告)号：US20210074963A1

公开(公告)日：2021-03-11

申请号：US16965290

申请日：2018-04-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jie ZHANG ,  Zhijun GUO ,  Peng WANG ,  Guowei LI ,  Taosheng ZHU

IPC: H01M2/06 ,  H01M2/26 ,  H01M2/04 ,  H01M2/30

Abstract: A secondary battery including: a case including an opening; a top cover assembly including a top cover plate covering the opening and an electrode terminal, the top cover plate including an electrode lead-out hole corresponding to the electrode terminal; an electrode assembly received in the case and including a main body and a tab, the tab being bent relative to a thickness direction of the top cover plate to form a bent portion; and a current collecting wiring board disposed between the top cover plate and the main body and including a first connection portion, a second connection portion, and a transition portion, the first connection portion and the second connection portion extending along a width direction of the top cover plate and being provided opposite to each other, the first connection portion being connected with the electrode terminal, and the second connection portion being connected with the bent portion.

公开(公告)号：US20210074961A1

公开(公告)日：2021-03-11

申请号：US16965289

申请日：2018-04-17

Applicant: Contemporary Amperex Technology co., Limited

Inventor： Yong ZHOU ,  Zhijun GUO ,  Peng WANG

IPC: H01M2/04 ,  H01M10/0587 ,  H01M2/36 ,  H01M2/12

Abstract: The disclosure relates to a power battery and a battery module. The power battery includes: a case including two openings opposite to each other; an electrode assembly formed by winding a positive electrode sheet, a negative electrode sheet, and a separator disposed around a winding axis, the electrode assembly being disposed in the case, and two opposite ends of the electrode assembly along the winding axis being respectively disposed corresponding to the two openings; a first cap assembly covering one of the two openings, the first cap assembly including a liquid injection hole communicating with an interior of the case; a second cap assembly covering the other opening, the second cap assembly including a through hole communicating with the interior of the case; in a length direction, the liquid injection hole and the through hole are located on a same side of a central axis of the case.

公开(公告)号：US20210066679A1

公开(公告)日：2021-03-04

申请号：US16838064

申请日：2020-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xingdi CHEN ,  Kaijie YOU ,  Peng WANG ,  Yongguang WANG ,  Zequan LU

IPC: H01M2/10

Abstract: A battery pack for optimizing the structure of the battery pack includes a case, a battery module and a blocking member. The case includes an accommodating cavity and a drain hole in communication with the accommodating cavity. The battery module is contained inside the accommodating cavity. The blocking member is mounted to the case, wherein the blocking member is disposed on one side of the battery module in a width direction. At least a part of the blocking member is arranged between the battery module and the drain hole to block a binder for fixing the battery module from entering the drain hole. The reservoir cavity is provided, such that the liquid flow into a reservoir portion to prevent dangers such as short-circuit occurring in the battery module when liquid is accumulated inside the case.

公开(公告)号：US20210043913A1

公开(公告)日：2021-02-11

申请号：US16976752

申请日：2019-09-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Fenggang ZHAO ,  Yuqun ZENG ,  Jian GUO ,  Quankun LI ,  Peng WANG

IPC: H01M2/30 ,  H01M2/04 ,  H01M2/34

Abstract: 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.

公开(公告)号：US20210028426A1

公开(公告)日：2021-01-28

申请号：US16856796

申请日：2020-04-23

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yu TANG ,  Yanbo CHEN ,  Peng WANG ,  Kaijie YOU ,  Xingdi CHEN ,  Yongguang WANG

IPC: H01M2/12 ,  H01M2/10 ,  H01M2/20

Abstract: A battery assembly includes a protection member and a battery module including at least two batteries arranged side by side along a first direction and having a first outer surface and a second outer surface opposite to each other along a second direction. The protection member is in the form of a letter U with two vertical portions having different lengths, wherein a first protection section covers the end covers of batteries in the battery module, a part of a second protection section covers the first outer surface, and a third protection section abuts against an end cover of a battery corresponding to the second outer surface. The protection member can prevent the airflow, the flame and the like sprayed during thermal runaway, and control a thermal diffusion range during thermal runaway.