公开(公告)号：US11923559B2

公开(公告)日：2024-03-05

申请号：US17853434

申请日：2022-06-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yu Tang ,  Yanbo Chen ,  Peng Wang ,  Kaijie You ,  Xingdi Chen ,  Yongguang Wang

IPC: H01M50/383 ,  H01M50/209 ,  H01M50/233 ,  H01M50/249 ,  H01M50/276 ,  H01M50/30 ,  H01M50/502 ,  H01M50/505

CPC classification number: H01M50/383 ,  H01M50/209 ,  H01M50/233 ,  H01M50/249 ,  H01M50/276 ,  H01M50/30 ,  H01M50/394 ,  H01M50/502 ,  H01M50/505 ,  H01M2220/20

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：US11705604B2

公开(公告)日：2023-07-18

申请号：US16507318

申请日：2019-07-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingdi Chen ,  Kaijie You ,  Weilong Lin ,  Jun Ma ,  Yuepan Hou ,  Ziyuan Li

IPC: H01M10/00 ,  H01M50/383 ,  H01M50/271 ,  H01M50/507 ,  H01M50/227 ,  H01M50/209 ,  H01M50/224

CPC classification number: H01M50/383 ,  H01M50/271 ,  H01M50/507 ,  H01M50/209 ,  H01M50/224 ,  H01M50/227 ,  H01M2220/20

Abstract: The present disclosure relates to a battery module including at least one battery unit array structure, an upper cover, a lower cover and a fireproof component disposed vertically. Each battery unit array structure includes a plurality of battery units and a plurality of busbars electrically connected to the plurality of battery units. The battery unit array structure is disposed between the upper cover and the lower cover. Each battery unit of each battery unit array structure is provided with a vent facing towards the fireproof component. Different from the related art, when thermal runaway occurs in a battery unit according to the present disclosure, flame and high-temperature particles ejected from a vent of a battery unit are blocked by the fireproof component from burning adjacent battery units, thereby preventing the thermal runaway in the other battery units from being triggered by the existing thermal runaway.

公开(公告)号：US20220416375A1

公开(公告)日：2022-12-29

申请号：US17894015

申请日：2022-08-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO.,LIMITED

Inventor： Haizu JIN ,  Xinzhan Wu ,  Zhenhua Li ,  Kaijie You ,  Wenei Chen

IPC: H01M50/54

Abstract: This application provides a battery cell, a battery, and an electric apparatus. The battery cell includes: an electrode assembly, including a body portion and a first tab. A first size L1 of the body portion in a length direction thereof is greater than a second size L2 of the body portion in a width direction thereof. The first tab is located on at least one end of the body portion in the width direction. The first tab has a third size L3 in the length direction. The first size L1, the second size L2, and the third size L3 satisfy 0.5L2≤L3≤L1. The battery cell according to an embodiment of this application is intended to resolve a technical problem of severe heat generation by a tab.

公开(公告)号：US11482738B2

公开(公告)日：2022-10-25

申请号：US16571810

申请日：2019-09-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu Jin ,  Dongyang Shi ,  Fei Hu ,  Kaijie You ,  Xingdi Chen

IPC: H01M10/613 ,  H01M10/653 ,  H01M10/6555 ,  H01M10/04 ,  H01M10/6556

Abstract: A battery module including a first battery group, a second battery group, a cooling plate, and a plurality of busbars electrically connected with a plurality of battery cells. The cooling plate is placed between the first battery group and the second battery group, and the two surfaces of the cooling plate are respectively bonded onto the first battery group and the second battery group with thermally conductive adhesive, the first battery group and the second battery group can be mounted close to the cooling plate, thus increasing the heat dissipation area and improving the heat dissipation effect.

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.

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

IPC: H01M2/10 ,  H01M2/12 ,  H01M10/04 ,  H01M50/20 ,  H01M50/30

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.