| 摘要 |
PURPOSE: To provide a nonaqueous electrolytic secondary battery in which the electrode charging property of a negative electrode is enhanced, the peeling of graphite from the negative electrode due to charging and discharging is prevented, a high energy can be provided and a satisfactory cycle characteristic can be also exhibited. CONSTITUTION: A negative electrode material for nonaqueous electrolytic secondary battery is manufactured by mixing a graphite having a bulk specific gravity less than 0.5g/cm<3> to a graphite having a bulk specific gravity of 0.5g/cm<3> or more in a ratio of 10-50wt.%. As the graphite having a bulk specific gravity of 0.5g/cm<3> or more, a one having an average parameter of xave or more is preferably used, and as the graphite having a bulk specific gravity less than 0.5g/cm<3> , a one having an average form parameter xave larger than 100 is preferred. |
