公开(公告)号：US11955649B2

公开(公告)日：2024-04-09

申请号：US17254663

申请日：2019-04-17

申请人： ChangZhou Microbat Technology Co. Ltd.

发明人： Guo Chen ,  Jiawen Luo ,  Yunfeng Xue

IPC分类号： H01M50/148 ,  H01M10/0525 ,  H01M50/103 ,  H01M50/107 ,  H01M50/147 ,  H01M50/157 ,  H01M50/176 ,  H01M50/179 ,  H01M50/586

CPC分类号： H01M50/148 ,  H01M10/0525 ,  H01M50/107 ,  H01M50/147 ,  H01M50/157 ,  H01M50/179 ,  H01M50/103 ,  H01M50/176 ,  H01M50/586

摘要： The present disclosure relates to a cover plate assembly for a lithium ion battery and a lithium ion battery. The cover plate assembly includes a cover plate body, provided at a middle portion thereof with a through hole which extends to form a tube body, and the tube body protrudes from at least one surface of the cover plate body; a pressure relief portion, wherein the pressure relief portion is located in the tube body and is in sealed communication with the tube body, the pressure relief portion is ring-shaped and is configured to crack and split from the cover plate body in response to deformation of the cover plate body; and a central conductor, embraced by the pressure relief portion and runs through the pressure relief portion along the axial direction. The cover plate assembly features excellent safety performance and small space occupation.

公开(公告)号：US11742542B2

公开(公告)日：2023-08-29

申请号：US16972675

申请日：2019-04-17

申请人： ChangZhou Microbat Technology Co. Ltd.

发明人： Guo Chen ,  Jiawen Luo ,  Yunfeng Xue

IPC分类号： H01M50/143 ,  H01M50/157 ,  H01M50/183

CPC分类号： H01M50/143 ,  H01M50/157 ,  H01M50/183

摘要： The present disclosure discloses an explosion-proof enclosure for an energy storage device and an energy storage device. The explosion-proof enclosure includes: a housing body, having a through hole; and an explosion-proof element, including a central portion and a pressure relief portion provided around the central portion, wherein the pressure relief portion is loop-shaped, the pressure relief portion is provided in the through hole and is in sealed connection with the through hole, the pressure relief portion is configured to crack and split from the housing body in response to the deformation of the housing body when the pressure intensity in the housing body reaches a first set value, and to detach from the housing body when the pressure intensity reaches a second set value, wherein the second set value is greater than the first set value.