NON-AQUEOUS ELECTROLYTE BATTERY AND METHOD FOR MANUFACTURING SAME

Provided are a non-aqueous electrolyte battery that exhibits favorable load characteristics at low temperatures after being stored at a high temperature, and a method for manufacturing the non-aqueous electrolyte battery. A non-aqueous electrolyte battery of the present invention includes a negative electrode, a positive electrode, and a non-aqueous electrolyte. The negative electrode contains at least one negative electrode active material selected from the group consisting of Li (lithium), a Li alloy, an element capable of forming an alloy with Li, and a compound containing the element, and the non-aqueous electrolyte contains, in an amount within a range of 8 mass% or less, a phosphoric acid compound having, in its molecule, a group represented by General Formula (1): 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 are optionally substituted by a fluorine atom.