LITHIUM-TRANSITION METAL-BASED COMPOUND POWDER FOR LITHIUM SECONDARY BATTERY POSITIVE ELECTRODE MATERIAL, AND MANUFACTURING METHOD THEREOF, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY USING THE SAME, AND LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a lithium-transition metal-based compound powder which makes it possible to provide a lithium secondary battery which has a high initial efficiency and a good rate characteristic when used as a lithium secondary battery positive electrode material.

SOLUTION: The lithium-transition metal-based compound powder for lithium secondary battery positive electrode material comprises an oxide expressed by the general formula (1). The powder has Li holes and oxygen holes in a crystal structure, and a root mean square (RMS) of surface roughnesses of primary particles of the powder is 1.5 nm or less, which conforms to JIS B 0601:2001. xLi2MO3(1-x)LiNO2(1), where x meets 0+, and N is at least one metal element having a mean oxidation number of 3+.

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