Lithium-containing electrode material, method for producing the same, and electrochemical element using lithium-containing electrode material

摘要

PROBLEM TO BE SOLVED: To provide a lithium-containing electrode material with high stability in the atmosphere as an electrode material capable of constituting an electrochemical element with high capacity and high cycle characteristics. SOLUTION: This lithium-containing electrode material contains oxygen and an element, forming an alloy with lithium in at least a surface layer part of particles of a lithium transition metal composite nitride, and the lithium- containing electrode material is prepared in such a way that the lithium transition metal composite nitride and a compound containing an element forming an alloy with at least lithium are mixed, the compound containing the element forming the alloy with at least lithium is attached to the surface of the particles of the lithium transition metal composite nitride, and they are baked.