| abstract |
(57) [Summary] [Object] To provide a non-aqueous electrolyte secondary battery containing a Li salt, which has a high energy density and does not generate dendrites, to obtain a highly reliable secondary battery. In a non-aqueous electrolyte secondary battery having a positive electrode 7 having reversibility for charging and discharging, and a non-aqueous electrolyte containing lithium and a carbon material as a negative electrode, the negative electrode is formed by an X-ray wide-angle diffraction method (002 ) The surface spacing is 3.50 angstroms, the crystallite size (Lc) in the C-axis direction is 100 angstroms, and the bulk specific gravity is 0.6. Carbonaceous material is used for the negative electrode 8. |