| abstract |
It is an object of the present invention to provide lithium manganese oxide having high output and high temperature stability. The challenge is, the primary particle diameter is less than 1 μm or more, average particle diameter (D50) of the behavior of particles is more than 1 μm 10 μm, substantially is to form a single crystal grain lithium manganese oxide particle powder, the formula Li 1 + x Mn 2 - x- y Y y O 4 (Y = Al, Mg, at least one member, 0.03≤x≤0.15, 0.05≤y≤0.20 of Co), and the element Y, and is uniformly dispersed inside the particles, I (400) / I (111) is 33% or more and I (440) / I (111) is 16% or more.n n n n Lithium manganese oxide for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery |