公开(公告)号：US20230411779A1

公开(公告)日：2023-12-21

申请号：US18460716

申请日：2023-09-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xuehui Wang ,  Mingguang Gu ,  Xiaobo Chen ,  Xiongwei Gao ,  Yucang Hao

IPC: H01M50/342 ,  H01M50/152 ,  H01M50/55

CPC classification number: H01M50/3425 ,  H01M50/152 ,  H01M50/55

Abstract: Provided are an end cover, an end cover assembly, a battery cell, a battery, and an electric device. The end cover includes: two through holes, running through the end cover for mounting electrode terminals; a depression, where the depression is formed by a surface of the end cover recessing in a thickness direction, and a bottom wall of the depression forms a pressure relief mechanism; and a weak portion, disposed on the pressure relief mechanism, where the pressure relief mechanism is configured to crack along the weak portion when internal pressure of the battery cell reaches a threshold; where depth of the weak portion gradually decreases on one or two sides of a perpendicular bisector of a connecting line of the two through holes in a direction leaving the perpendicular bisector.

公开(公告)号：US20220246975A1

公开(公告)日：2022-08-04

申请号：US17539225

申请日：2021-12-01

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Junda Tu ,  Xiaobo Chen ,  Dan Shen ,  Xuehui Wang

IPC: H01M10/04 ,  H01M10/613 ,  H01M10/647 ,  H01M10/653 ,  H01M10/658

Abstract: The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility δ1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×δ1≤A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.

公开(公告)号：US11916248B2

公开(公告)日：2024-02-27

申请号：US17588266

申请日：2022-01-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xuehui Wang ,  Xiongwei Gao

IPC: H01M50/317 ,  H01M10/44 ,  H01M50/107 ,  H01M50/152 ,  H01M50/213

CPC classification number: H01M50/317 ,  H01M10/445 ,  H01M50/107 ,  H01M50/152 ,  H01M50/213 ,  H01M2200/00 ,  H01M2220/20

Abstract: Embodiments of the present disclosure provide a battery, a manufacturing method and a manufacturing apparatus thereof, and a power consumption device. The battery includes: at least one battery layer, wherein each battery layer includes a plurality of battery cells disposed side by side in a first direction, and each battery cell in the plurality of battery cells includes a case and an end cover which are connected to each other; and at least one limiting member disposed corresponding to the at least one battery layer and covering the case, so as to limit the corresponding battery layer to move in a third direction, wherein the third direction is perpendicular to the at least one battery layer, the at least one limiting member includes a first limiting member, the first limiting member is provided with a weakened region, and the weakened region is configured to enable the battery cell to release pressure through a region of the case corresponding to the weakened region when an internal pressure of the battery cell reaches a first threshold.

公开(公告)号：US11616251B2

公开(公告)日：2023-03-28

申请号：US17539225

申请日：2021-12-01

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Junda Tu ,  Xiaobo Chen ,  Dan Shen ,  Xuehui Wang

IPC: H01M10/04 ,  H01M10/613 ,  H01M10/647 ,  H01M10/653 ,  H01M10/658 ,  H01M50/293 ,  H01M50/209 ,  H01M10/625 ,  H01M50/291

Abstract: The disclosure provides a battery module. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility δ1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×δ1≤A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.

公开(公告)号：US11223063B2

公开(公告)日：2022-01-11

申请号：US16468946

申请日：2018-12-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang Zhao ,  Junda Tu ,  Xiaobo Chen ,  Dan Shen ,  Xuehui Wang

IPC: H01M10/658 ,  H01M10/04 ,  H01M10/653 ,  H01M10/647 ,  H01M10/613

Abstract: The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility δ1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×δ1≤A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.