LITHIUM TRANSITION METAL COMPOUND POWDER, PROCESS FOR PRODUCTION THEREOF, SPRAY-DRIED PRODUCT USEFUL AS FIRING PRECURSOR, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY MADE BY USING THE SAME

摘要

A lithium transition metal compound powder for the positive electrode material of a lithium secondary battery, characterized by being prepared by using a lithium transition metal compound permitting the insertion and extraction of lithium ions as the main component, incorporating the main component raw material with both at least one compound (hereinafter referred to as "additive (1)") containing one or more elements (hereinafter referred to as "additive element (1)") selected from between B and Bi and at least one compound (hereinafter referred to as "additive (2)") containing one or more elements (hereinafter referred to as "additive element (2)") selected from between Mo and W in a total amount of additives (1) and (2) of 0.01% by mole or above and below 2% by mole based on the total molar amount of transition metal elements contained in the main component raw material, and then firing the obtained mixture. ® KIPO & WIPO 2009