公开(公告)号：EP4411850A1

公开(公告)日：2024-08-07

申请号：EP24711108.1

申请日：2024-02-02

申请人： Eve Energy Co., Ltd.

发明人： HAN, Dandan ,  LIU, Zhihua ,  ZHU, Yuan ,  CAO, Lang ,  SUN, Peiling

IPC分类号： H01M4/06 ,  H01M50/109 ,  H01M6/14

CPC分类号： Y02E60/10 ,  H01M6/14 ,  H01M4/06 ,  H01M50/109

摘要： The present application discloses a button battery. The button battery includes a case 10, a positive electrode powder piece 400, and a current collector 300. The case 10 includes a positive electrode case 100 and a negative electrode case 200 interconnected. The positive electrode case 100 and the negative electrode case 200 are connected to define a cavity 101. The positive electrode powder piece 400 is disposed in the cavity 101. The current collector 300 is disposed in the cavity 101, the current collector 300 and the positive electrode powder piece 400 are stacked, and at least a part of the current collector 300 is embedded into the positive electrode powder piece 400. A side of current collector 300 away from the positive electrode powder piece 400 is contacted with a bottom of the positive electrode case 100.