公开(公告)号：EP3690994A1

公开(公告)日：2020-08-05

申请号：EP18861416.8

申请日：2018-09-28

申请人： Dai-Ichi Kogyo Seiyaku Co., Ltd.

发明人： SANUKI Atsushi ,  KAWANO Yuka ,  NAKAMURA Shiho

IPC分类号： H01M4/139 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0566

摘要： A negative electrode active material coating material capable of providing a secondary battery that is of low cost, has high capacity, and has excellent battery characteristics, a negative electrode, and a secondary battery are provided.
The negative electrode active material coating material contains a negative electrode active material, a conductive agent, an aqueous binder, water, and a solvent, wherein the boiling point of the solvent is 200°C or more and 300°C or less, the water solubility of the solvent is 20 g/L or more, and the content of the solvent is 0.1% by mass or more and 10% by mass or less with respect to 100% by mass of the negative electrode active material coating material.