Non-aqueous electrolyte secondary battery

摘要

A non-aqueous electrolyte secondary battery includes a positive electrode ( 11 ), a negative electrode ( 12 ), and a non-aqueous electrolyte ( 14 ). The positive electrode contains a lithium-free metal oxide and a positive electrode active material composed of an olivine-type lithium-containing phosphate represented by the general formula Li_xMPO₄, where M is at least one element selected from the group consisting of Co, Ni, Mn, and Fe, and 0