| abstract |
A non-aqueous electrolyte secondary battery having excellent life characteristics is provided. A in the general formula Li x Fe 1-y M y PO 4 ( wherein, M represents, Co, Ni, Cu, Zn , Al, Sn, B, Ga, Cr, V, Ti, Mg, Ca, Sr And at least one selected from the group consisting of: 0.9 <x <1.2, 0 ≦ y <0.3)) , A negative electrode containing a lithium metal, lithium alloy or lithium-doped material, and a non-aqueous electrolyte, The non-aqueous electrolyte secondary battery, wherein the non-aqueous electrolyte contains fluorinated ethylene carbonate (FEC). [Selection figure] None |