公开(公告)号：US20210126321A1

公开(公告)日：2021-04-29

申请号：US17139814

申请日：2020-12-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kaijie YOU ,  Linggang ZHOU ,  Dongyang SHI ,  Yanhuo XIANG ,  Yongshou LIN ,  Fei HU

IPC: H01M50/507 ,  H01M50/207 ,  H01M50/342 ,  H01M50/547 ,  H01M50/244 ,  H01M10/0587

Abstract: The present disclosure provides a battery module, including a first battery cell arrangement structure, a second battery cell arrangement structure and a bus bar array. With battery cells stacked in a horizontal direction, a first battery cell arrangement structure and a second battery cell arrangement structure are stacked in a vertical direction, and a first bus bar of a bus bar array is used to sequentially connect the battery cells of the first battery cell arrangement structure and the second battery cell arrangement structure. As a result, a total positive electrode and a total negative electrode of a battery module are located at two ends of the battery module, which greatly reduces the possibility of a short circuit of the battery module and improves the safety of the battery module.

公开(公告)号：US20210126310A1

公开(公告)日：2021-04-29

申请号：US17139830

申请日：2020-12-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ziyuan LI ,  Yuepan HOU ,  Xingdi CHEN ,  Yu TANG ,  Jun MA ,  Kaijie YOU

IPC: H01M50/171 ,  H01M50/533 ,  H01M50/184

Abstract: Some embodiments of the present application relate to a battery module and a battery pack. The battery module includes a plurality of battery cells, two insulating members and a binding strip. The insulating member includes a first face and a second face, the first face is located on a side face of the battery module, the second face is located on a bottom face of the battery module, and the two insulating members are respectively disposed on two sides of the battery module in a horizontal direction. The binding strip surrounds the plurality of battery cells and the insulating members.

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：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.

公开(公告)号：US20200287179A1

公开(公告)日：2020-09-10

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

IPC: H01M2/10 ,  H01M2/12 ,  H01M10/04

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.

公开(公告)号：US20200212398A1

公开(公告)日：2020-07-02

申请号：US16394145

申请日：2019-04-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kaijie YOU ,  Haizu JIN ,  Dongyang SHI ,  Fei HU ,  Yu TANG ,  Yuepan HOU ,  Ziyuan LI ,  Jun MA

IPC: H01M2/12 ,  H01M2/10

Abstract: The present application discloses a battery pack, comprising a first battery module, a second battery module, a housing and a fireproof member. The first battery module includes a plurality of battery cells which are provided with vents; the second battery module includes a plurality of battery cells which are provided with vents. Both the first battery module and the second battery module are arranged in the housing; the fireproof member is vertically disposed and located between the vents of the first battery module, where the vents of the first battery module and the vents of the second battery module both face the fireproof member. The battery pack prevents collective thermal runaway of the battery cells by using the fireproof member to separate the battery cells of the first battery modules and the battery cells of the second battery modules.

公开(公告)号：US20200212396A1

公开(公告)日：2020-07-02

申请号：US16394148

申请日：2019-04-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingdi CHEN ,  Kaijie YOU ,  Yu TANG ,  Ziyuan LI ,  Yuepan HOU ,  Jun MA

IPC: H01M2/10 ,  A62C3/16 ,  H01M10/658 ,  H01M2/12

Abstract: The present disclosure discloses a battery module and a battery pack. The battery module comprises a plurality of battery cells and a fireproof member, wherein each of the plurality of battery cells is provided with a vent, and the vent faces the fireproof member; wherein the fireproof member includes a fireproof member body and a first extension connected to an upper end of the fireproof member; and/or a second extension connected to a lower end of the fireproof member. When thermal runaway occurs to the battery cells, flames and high temperature particles ejected out of the vent are blocked by the fireproof member body and the first extension and/or the second extension, thus preventing the ejected flames and high temperature particles from burning neighboring battery cells, and preventing the battery cells that has undergone thermal runaway from inducing thermal runaway of the neighboring battery cells opposite to the vents.