LITHIUM TRANSITION METAL SYSTEM COMPOUND POWDER, METHOD OF MANUFACTURING THE SAME, AND SPRAY-DRIED MATERIAL TO BECOME ITS CALCINATION PRECURSOR, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY USING THE SAME, AND LITHIUM SECONDARY CELL

摘要

PROBLEM TO BE SOLVED: To provide a lithium transition metal system compound powder for a lithium secondary battery positive electrode material capable of achieving lower cost, higher safety, higher load characteristics, improved handling performance of powder as well, when the powder is used as a lithium secondary battery positive electrode material.

SOLUTION: The lithium transition metal system compound powder for a lithium secondary battery positive electrode material has a lithium transition metal system compound having a function capable of insertion/removal of lithium ion as a principal component. One or more out of a compound (hereinafter referred to as 'additive agent 1') containing at least one or more elements (hereinafter referred to as additive element 1) selected from B and Bi and a compound (hereinafter referred to as 'additive agent 2') containing one or more elements (hereinafter referred to as 'additive element 2') selected from Mo and W are added to the principal component raw material in a ratio of 0.01 mol% or more and less than 2 mol% against a total mol volume of the transition metal elements in the principal component raw material, and then, the same is burned to obtain the lithium transition metal system compound powder for a lithium secondary battery positive electrode material.

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