POSITIVE ELECTRODE ACTIVE SUBSTANCE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a positive electrode active substance that is capable of obtaining a large discharge capacity and a large current discharge characteristics. SOLUTION: The positive electrode active substance contains a lithium- contained complex metal oxide that has a composition as expressed in the formula, LiMgx M1-x PO4 . Provided that M shows an element of one kind or more selected from a group made of Co and Ni, and its molar rate x is 0.5