SPINEL MANGANESE OXIDE OR LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a trivalent metal-doped lithium rich spinel compound: Li1+x Mn2-y My O4+z (0.05 /g is obtained by firing lithium hydroxide, chemically synthesized manganese dioxide and a nitrate of a trivalent metal at 400-570 deg.C and heat- treating the product again at -600-800 deg.C. The lithium secondary battery uses the compound: Li1+x Mn2-y My O4+z as the positive electrode substance and the rocking chair type lithium ion battery uses an intercalation compound as carbon as the negative electrode substance.