Lithium ion secondary cell

The invention provides a lithium ion secondary cell, in particular a long-life fast-charging cell. The long-life fast-charging cell comprises a positive electrode material, a negative electrode material, a diaphragm and a nonaqueous electrolyte, wherein the active substance of the negative electrode material comprises at least one of hard carbon and soft carbon; the nonaqueous electrolyte contains a film-forming additive and a lithium salt; the film-forming additive comprises vinylene carbonate; and the lithium salt comprises lithium difluorosulfonylimide. Due to excellent performance, the long-life fast-charging cell has broad market prospects.