Patent ID: 6890456
Filing Date: 2005-05-10
Classification: H01M,Y02E

Abstract:
1. A process for producing a cathode electroactive material for use in lithium ion secondary cells which comprises adding, to a pulverized Li—Mn composite oxide with a spinel structure, at least one component selected from the group consisting of an oxide which is molten at 550° C.-900° C., an oxide which forms a solid solution with lithium or manganese having a melting point of 550° C.-900° C., an oxide which melts to react with lithium or manganese to form a compound having a melting point of 550° C.-900° C., an element which forms one of these oxides, and a compound which converts into one of these oxides; to thereby form granules and, wherein the granulation process is carried out through spray granulation, agitation granulation, compressive granulation, or fluidization granulation.