| abstract |
(57) [Summary] [PROBLEMS] To prevent decomposition of a non-aqueous ionic conductor by graphite particles. A negative electrode comprising graphite particles having amorphous carbon adhered to the surface as a negative electrode active material, a positive electrode comprising a lithium-containing chalcogenide as a positive electrode active material, and a non-aqueous ion conductor, The object is achieved by a non-aqueous secondary battery characterized in that the negative electrode active material is formed by oxidizing graphite particles and then attaching amorphous carbon to the surface of the graphite particles. |