| abstract |
【Task】 Provided are a positive electrode active material for a non-aqueous electrolyte secondary battery, a positive electrode mixture for a non-aqueous electrolyte secondary battery, and a non-aqueous electrolyte secondary battery having excellent battery characteristics even in a more severe use environment. [Solution] The positive electrode active material for a non-aqueous electrolyte secondary battery is a positive electrode active material for a non-aqueous electrolyte secondary battery having at least a lithium transition metal composite oxide having a spinel structure, and the lithium transition metal composite oxide is a particle And a compound containing at least one element A selected from the group consisting of yttrium, niobium, tin, lanthanum, samarium, zinc, gadolinium, and neodymium on the surface of the particles, and the amount of A is the lithium transition The total amount of the metal composite oxide and A is greater than 0% by weight and less than 2% by weight. [Selection figure] None |