| 摘要 |
Provided is a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolyte, wherein the positive electrode has a positive active material containing a lithium transition metal composite oxide having an alpha-NaFeO2-type crystal structure and represented by the composition formula: Li1+alphaMe1-alphaO2 (wherein Me is a transition metal element including Co, Ni and Mn; and alpha>0), and the negative electrode has a negative active material which contains a carbon material that is a mixture of graphite and amorphous carbon and in which the ratio of the amorphous carbon contained in the carbon material is 5 to 60% by mass. |
