Lithium battery and method producing positive electrode active material therefor

摘要

In a method of producing a positive active material for a lithium battery, a compound represented by the chemical formula HxLiyMO2 in a solution containing lithium ions is chemically oxidized, where 0 ≤ x ≤ 2, 0 ≤ y ≤ 2, 1 < (x + y) ≤ 2, and M is one or two kinds of transition metals selected from Co and Ni.