NONAQUEOUS ELECTROLYTE PRIMARY BATTERY AND METHOD FOR MANUFACTURING SAME

A non-aqueous electrolyte primary battery of the present invention includes: a negative electrode; a positive electrode; a separator; and a non-aqueous electrolyte. The negative electrode contains metallic lithium or a lithium alloy. The positive electrode contains a manganese oxide or a lithium-containing manganese oxide with a lithium content of 3.5% by mass or less. The non-aqueous electrolyte contains a phosphoric acid compound or a boric acid compound having in its molecule a group represented by General Formula (1) below, and the content of the phosphoric acid compound or the boric acid compound in the non-aqueous electrolyte is 8% by mass or less: where X is Si, Ge or Sn; R 1 , R 2 and R 3 independently represent an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an aryl group having 6 to 10 carbon atoms; and some or all of hydrogen atoms may be substituted with a fluorine atom.