Method of producing active cathode material for non-aqueous cells.

摘要

A method of producing manganese dioxide, which is used for an active cathode material for non-aqueous cells such as manganese oxide-lithium cells or the like. Moisture-containing manganese dioxide is dehydrated by dielectric heating through intermittent microwave irradiation, with the atmosphere during the dielectric heating being arranged to be under reduced pressures or in inert gas atmosphere, and thus, manganese dioxide which provides cells superior in discharge characteristics and storage property has been presented.