公开(公告)号：EP4451377A1

公开(公告)日：2024-10-23

申请号：EP22938994.5

申请日：2022-04-27

申请人： Contemporary Amperex Technology (Hong Kong) Limited

发明人： WANG, Yuwen ,  WU, Yiyang ,  YE, Yonghuang ,  WU, Baozhen ,  YOU, Xingyan

IPC分类号： H01M4/36 ,  H01M4/38 ,  H01M4/583 ,  H01M4/133 ,  H01M4/134 ,  H01M10/0525

摘要： A secondary battery (5) is disclosed, including: a positive electrode plate, a negative electrode plate, and a separator. The separator is disposed between the positive electrode plate and the negative electrode plate. The negative electrode plate includes a negative current collector and a negative active material layer disposed on at least one surface of the negative current collector. A negative active material in the negative active material layer includes graphite, amorphous carbon, and a non-carbon negative electrode material. The amorphous carbon includes one or more of hard carbon, soft carbon, or porous carbon. The non-carbon negative electrode material is a silicon-based negative electrode material and/or a tin-based negative electrode material.