| abstract |
A lithium secondary battery comprising: a positive electrode capable of electrochemically doping / dedoping lithium; A negative electrode capable of electrochemically doping / dedoping lithium; A positive electrode, and an electrolyte interposed between the positive electrode and the negative electrode, wherein the electrolyte contains at least one of fluoroethylene carbonate represented by the formula (1) and difluoroethylene carbonate represented by the formula (2) (B / A) x 100) of the discharge capacity (B) at the time of 5 C discharge relative to the discharge capacity (A) at the time of 0.2 C discharge is 80% or more. |