Patent ID: 6706444
Filing Date: 2004-03-16
Classification: H01M,Y02E

Abstract:
A process for the preparation of lithium manganate with a spinel structure consisting essentially of the follow steps:electrically depositing manganese dioxide onto an anode by electrolysis; washing the electro-deposited manganese dioxide with water and neutralizing the manganese dioxide to a pH of at least 2 by using only a compound consisting of a sodium compound or a potassium compound, as the neutralizing agent; incorporating lithium material and manganese material into the electro-deposited manganese dioxide to obtain a mixture, adding a compound containing at least one second element selected from the group consisting of aluminum, magnesium, calcium, titanium, vanadium, chromium, iron, cobalt, nickel, copper and zinc into the mixture to replace a portion of manganese in the electro-deposited manganese dioxide by said at least one different type of element; and burning the resulting mixture.