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：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：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.

公开(公告)号：US20240413427A1

公开(公告)日：2024-12-12

申请号：US18809863

申请日：2024-08-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Runyong HE ,  Xingdi CHEN

IPC: H01M10/653 ,  B60L50/64 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6554 ,  H01M10/656 ,  H01M50/209 ,  H01M50/211

Abstract: A battery and an electrical apparatus are provided. The battery includes a box, a battery cell, and a thermally conductive member for accommodating a heat exchange medium. An accommodating cavity of the box includes a top wall and a bottom wall which are oppositely arranged in a vertical direction, and the battery cell is accommodated in the accommodating cavity. The battery cell includes an electrode terminal, and the battery cell is fixed in the accommodating cavity so that the electrode terminal faces the bottom wall of the accommodating cavity. The battery cell includes a first wall which is the wall with the largest area in the battery cell. The thermally conductive member is provided in the accommodating cavity and arranged opposite and thermally conductively connected to the first wall, and the heat exchange medium exchanges heat with the battery cell through the thermally conductive member.

公开(公告)号：US20240304926A1

公开(公告)日：2024-09-12

申请号：US18666712

申请日：2024-05-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingdi CHEN ,  Zhanyu SUN ,  Peng WANG

IPC: H01M50/242 ,  B60L50/60 ,  B60R16/04 ,  H01M50/209 ,  H01M50/249 ,  H01M50/271 ,  H01M50/55

CPC classification number: H01M50/242 ,  B60R16/04 ,  H01M50/209 ,  H01M50/249 ,  H01M50/271 ,  H01M50/55 ,  B60L50/66 ,  H01M2220/20

Abstract: This application relates to a battery pack and an electric apparatus. The battery pack includes a battery cell and a box. The box includes a body and a bottom cover disposed at the bottom of the body, where the bottom cover and the body are hermetically connected and jointly form a closed accommodating cavity, and the battery cell is accommodated in the accommodating cavity.

公开(公告)号：US20240055695A1

公开(公告)日：2024-02-15

申请号：US18484720

申请日：2023-10-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kaijie YOU ,  Yongguang WANG ,  Peng WANG ,  Linggang ZHOU ,  Xingdi CHEN

IPC: H01M10/6554 ,  H01M10/613 ,  H01M50/249 ,  H01M50/204 ,  H01M50/233

CPC classification number: H01M10/6554 ,  H01M10/613 ,  H01M50/249 ,  H01M50/204 ,  H01M50/233 ,  H01M2220/20

Abstract: The present application relates to a battery pack, a method for manufacturing a battery pack and a vehicle. The battery pack includes a case assembly including a case, a thermally conductive beam and a temperature control component, the thermally conductive beam being disposed in the case and connected to the case, and the temperature control component being disposed in a bottom region of the case; a thermally conductive cover connected to the thermally conductive beam and located above the thermally conductive beam along a height direction of the battery pack, where the thermally conductive cover, the case and the thermally conductive beam enclose and form a first chamber; and a plurality of battery cells integrally forming a battery assembly, the battery assembly being disposed in the first chamber and located above the temperature control component.

公开(公告)号：US20230327264A1

公开(公告)日：2023-10-12

申请号：US18333292

申请日：2023-06-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanyu SUN ,  Lei WANG ,  Xingdi CHEN ,  Peng WANG

IPC: H01M50/262 ,  H01M50/213 ,  H01M50/291

CPC classification number: H01M50/262 ,  H01M50/213 ,  H01M50/291 ,  H01M10/653

Abstract: A battery module includes N battery cell columns and N−1 spacer plates. Each of the N battery cell columns includes a plurality of battery cells arranged in a first direction. The N battery cell columns are arranged in a second direction. N is an integer greater than 1, and the first direction being perpendicular to the second direction. A spacer plate extends in the first direction and is disposed between two adjacent battery cell columns of the N battery cell columns. The spacer plate is fixedly coupled to each battery cell in the two adjacent battery cell columns. An end part of the spacer plate in the first direction is provided with a fixing structure, and the fixing structure is configured to fix the spacer plate to a box body configured to accommodate the battery module.

公开(公告)号：US20230134692A1

公开(公告)日：2023-05-04

申请号：US18087404

申请日：2022-12-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yongguang WANG ,  Yu TANG ,  Xingdi CHEN ,  Peng WANG ,  Jinqing JI ,  Mu QIAN

IPC: H01M50/242 ,  H01M50/222 ,  H01M50/264

Abstract: The present disclosure relates to a battery pack and an apparatus using the battery pack as a power supply, and relates to the technical field of batteries, to optimize performance of the battery pack. The battery pack includes a box body, a battery module, a module electrical connection piece, and a first protecting assembly. The battery module is mounted in the box body, and the battery module includes an anti-explosion assembly. The module electrical connection piece is mounted on the battery module. The first protecting assembly is mounted in the box body and is configured to protect the module electrical connection piece when an ejecta discharged from the anti-explosion assembly impacts the module electrical connection piece. The above technical scheme reduces probability of secondary short circuit of the battery pack.