Patent ID: 6337158
Filing Date: 2002-01-08
Classification: C01G,C01P,H01M,Y02E

Abstract:
A lithium secondary battery comprising a positive electrode using, as an active material, a lithium-containing manganese composite oxide having a spinel structure, the lithium-containing manganese composite oxide having a composition, during charge and discharge, represented by a formula, LixMn2-y-zNiyMzO4, in which M is at least one element selected from the group consisting of Fe, Co, Ti, V, Mg, Zn, Ga, Nb and Mo; 0.02&lE;x&lE;1.10, whereas x changes in accordance with occlusion and discharge of lithium ions during charge and discharge; 0.25&lE;y&lE;0.60; and 0