公开(公告)号：EP4303943A3

公开(公告)日：2024-06-05

申请号：EP23177842.4

申请日：2023-06-07

申请人： VOLKSWAGEN AG

发明人： Witte, Erik ,  Rathmann, Sven ,  Marschall, Maximilian ,  Böhm, Dennis

IPC分类号： H01M4/00 ,  H01M10/04 ,  H01M50/609 ,  H01M50/618 ,  H01M50/627 ,  H01M50/636 ,  H01M50/673

CPC分类号： H01M50/673 ,  H01M10/04 ,  H01M50/618 ,  H01M50/609 ,  H01M50/636 ,  H01M4/00 ,  H01M50/627

摘要： Die Erfindung betrifft einen Behälter, ein System, ein Verfahren und eine Vorrichtung zum Befüllen einer Batteriezelle mit Elektrolyt.
Es ist vorgesehen, dass in dem Behälter befindliches Elektrolyt über eine Auslassöffnung in eine Batteriezelle befüllt wird. Das Innere des Behälters ist mittels Ventilen in den Öffnungen des Behälters von der Umgebung abgedichtet und ermöglicht dadurch eine Befüllung der Batteriezelle mit Elektrolyt unter Nicht-Trockenatmosphäre.

公开(公告)号：EP4258463A3

公开(公告)日：2024-04-17

申请号：EP23173763.6

申请日：2020-05-14

申请人： Contemporary Amperex Technology Co., Limited

发明人： CHEN, Xinxiang ,  WANG, Peng ,  CHEN, Yuanbao ,  GUO, Zhijun ,  ZHENG, Yulian ,  LIANG, Chengdu ,  LI, Wei

IPC分类号： H01M50/10 ,  H01M50/609 ,  H01M10/0525 ,  H01M50/103 ,  H01M50/645

CPC分类号： H01M50/15 ,  H01M50/186 ,  H01M50/209 ,  H01M50/636 ,  Y02P70/50 ,  Y02E60/10 ,  H01M50/103 ,  H01M50/645

摘要： The present application relates to a battery end cover assembly, a secondary battery, a battery pack and a device using the battery, wherein the end cover assembly (10) is used for the secondary battery, and includes: an end cover (10'), provided with a through hole (11) for injection of electrolyte and an accommodating part (12), wherein the accommodating part (12) is arranged on a side, far away from a shell (40), of the end cover (10') and is arranged along a circumferential direction of the through hole (11); a sealing element (3), configured to seal the through hole (11); and a cover body (2), configured to cover at least part of the sealing element (3), wherein the cover body (2) is configured to be rotatable, and includes a limiting part (22); wherein when the cover body (2) rotates to a first position, the limiting part (22) is located inside the accommodating part (12) to limit separation of the cover body (2) from the end cover (10'); when the cover body (2) rotates to a second position, the limiting part (22) and the accommodating part (12) are misplaced along the circumferential direction of the through hole (11), to realize separation of the cover body (2) from the end cover (10').