| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-aqueous solvent secondary battery with its high capacity and superior cycle characteristics. SOLUTION: A non-aqueous solvent secondary battery having a positive 6, a negative electrode 4 composed of a carbonaceous material capable of storing and discharging lithium ions, and a lithium ion conductive electrolyte, wherein the non-aqueous solvent secondary battery is its main mixture of which the carbon material is 2 to 40μm in average fiber diameter, a graphitized mesophase pitch based carbon fiber is 10 to 100μmin average fiber length, and the coke-based carbon particles has 50 to 100μm average particle size. Here, it is preferable that the component ratio of graphitized mesophase pitch based carbon fiber in the carbonaceous material is 30 to 90wt.%. |
