MOLTEN SALT SECONDARY BATTERY

摘要

PURPOSE:To obtain a molten salt secondary battery having high output and high energy density by using an organic polymer which is chemically stable against inorganic salt and thermally stable and has conjugated double bonds in its principal chain as a positive active material. CONSTITUTION:At least a positive active material is made of an organic polymer having conjugated double bonds in its principal chain. The polymer which is chemically stable against inorganic salt and thermally stable is used. The conductive polymer having aromatic ring (phehyl group. naphthyl group) in the principal chain is chemically stable without generation of structure change which is peculiar to a polymer such as cut of the principal chain and break of the conjugated double bond in the electrochemical reaction, and is thermally stable without generation of decomposition reaction at about 180 deg.C. As the conductive polymer having high doping-undoping ability and nitrogen in the principal chain, polyaniline which is polymer of aniline (C6H5NH2) is preferable.