| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery which has a high capacity and excellent thermal stability.SOLUTION: A cathode active material for a non-aqueous electrolyte secondary battery mainly contains lithium composite oxide in which the rate of nickel (Ni) to the total mole number of metal elements excluding lithium (Li) is more than 30 mol%. The lithium composite oxide contains particles each of which is constructed by aggregation of primary particles having an average particle diameter of 0.5 μm or more, and at least one of boron (B) and phosphor (P) is fixed on the surface of the particles. |
