| abstract |
(57) [Problem] To provide a non-aqueous electrolyte secondary battery with high safety, long life, and high capacity. SOLUTION: A positive electrode; a negative electrode 5 containing a carbonaceous substance that occludes and releases lithium ions; lithium ions, organic cations having a specific skeleton, boron (B), phosphorus (P) And an electrolyte containing a molten salt comprising a fluoride anion containing at least one element selected from sulfur (S). |