公开(公告)号：US20220294093A1

公开(公告)日：2022-09-15

申请号：US17831673

申请日：2022-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/148 ,  H01M50/186

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.

公开(公告)号：US11777184B2

公开(公告)日：2023-10-03

申请号：US17831673

申请日：2022-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/60 ,  H01M50/15 ,  H01M50/636

CPC classification number: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636 ,  H01M2220/20 ,  Y02E60/10

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.

公开(公告)号：US12100867B2

公开(公告)日：2024-09-24

申请号：US18234496

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636

CPC classification number: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636 ,  H01M2220/20 ,  Y02E60/10

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.

公开(公告)号：US20230395958A1

公开(公告)日：2023-12-07

申请号：US18234496

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/186 ,  H01M50/148

CPC classification number: H01M50/645 ,  H01M50/186 ,  H01M50/148 ,  H01M2220/20 ,  H01M50/60

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.