公开(公告)号：EP3657579A1

公开(公告)日：2020-05-27

申请号：EP18835168.8

申请日：2018-07-18

申请人： Nissan Motor Co., Ltd.

发明人： DOI, Shotaro ,  KUSACHI, Yuki ,  HORIE, Hideaki ,  NAKASHIMA, Yusuke ,  TSUCHIDA, Kazuya ,  SUMIYA, Koji ,  ASANO, Shigehito ,  KOGA, Yasuyuki ,  ANDO, Nobuo ,  KOKUBO, Terukazu

IPC分类号： H01M4/36 ,  H01G11/06 ,  H01G11/50 ,  H01G11/86 ,  H01M4/587

摘要： There is provided a means capable of suppressing generation of a lithium dendrite at the time of charging and discharging while sufficiently suppressing an amount of gas generated at the time of initial charging of an electric device.
When a lithium ion is doped in advance to a negative electrode active material, which is used in an electric device including a positive electrode and a negative electrode, after performing a pre-doping step of doping the lithium ion to a negative electrode active material to be doped to reduce a potential (vs. Li+/Li) of the negative electrode active material to be doped with respect to a lithium metal, a dedoping step of dedoping the lithium ion from the negative electrode active material doped with the lithium ion in the pre-doping step to increase a potential (vs. Li+/Li) of the negative electrode active material with respect to the lithium metal is performed.