| abstract |
Provided is a material for a positive electrode of a lithium secondary battery comprising a lithium-containing composite oxide, which is excellent in thermal safety, volume capacity density, and charge / discharge cycle characteristics. A lithium secondary battery positive electrode material comprising a mixture of a lithium-containing composite oxide having a layered rock salt structure and a lithium-containing composite oxide having a pseudo-spinel structure. The lithium-containing composite oxide has the general formula Li p Co x M y O z Fa (where M is at least one selected from the group consisting of transition metal elements other than Co, Al, Sn, and alkaline earth metal elements) Represents an element of a species: 0.9 ≦ p ≦ 1.1, 0.97 ≦ x ≦ 1.00, 0 ≦ y ≦ 0.03, 1.9 ≦ z ≦ 2.1, x + y = 1, 0 ≦ A material for a lithium secondary battery positive electrode represented by a ≦ 0.02). [Selection figure] None |