| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymer lithium secondary battery capable of enhancing the filling density of a negative electrode and a keeping long charge/discharge cycle life. SOLUTION: A negative electrode 2 contains graphite base meso-phase pitch carbon particles capable of storing.releasing lithium ions, having the 50% particle diameter D50 of 10-30 μm and a specific surface area of 0.5-2.5 m2/g and a graphite base granular carbon material capable of storing/releasing lithium ions, having the 50% particle diameter D50 of 2.0-25 μm and a specific surface area of 0.5-20.0 m2/g. |
