| abstract |
(57) [Problem] To provide a non-aqueous electrolyte secondary battery using silicon as a negative electrode active material and having a large discharge capacity. SOLUTION: In a non-aqueous electrolyte secondary battery composed of a positive electrode made of a material that occludes and releases lithium ions, a negative electrode made of a material that occludes and releases lithium ions, and a non-aqueous electrolyte, the surface of a non-aqueous electrolyte Is used as the negative electrode material. |