| 摘要 |
PURPOSE:To obtain a battery having high capacity density and high energy density by using fine conductive polymer powder as the conductive material in a positive active material. CONSTITUTION:Positive active materials comprising the fine powder of a conductive polymer compound having at least conjugated double bonds in the principal chain and a polymer compound containing heteroatoms in the principal chain or side chain are used. The conductive polymer compound can be obtained by doping dopants in a polymer compound having at least conjugated double bonds in the principal chain. As the polymer compound having at least conjugated double bonds in the principal chain, polypyrrole, polythiophene, or others is used. As the polymer compound containing heteroatoms in the principal chain or side chain, poly-2-vinylpyridine or poly-4-vinylpyridine is used. Thereby, an increase in internal impedance of the positive active material attendant on discharge and decreases in capacity density end energy density are prevented. |
