| 摘要 |
PURPOSE:To have excellent cycle characteristic and voltage flatness and high energy density without a fear of causing a cadmium pollution by mixing a conductive assistant into an electrolytic solution. CONSTITUTION:In a liquid secondary battery in which a salt type conductive polymer is used as a carrying electrolyte and an active material, a conductive assistant is mixed into an electrolytic solution. The conductive assistant used is an acetylene black or the like, and the mixing volume is preferrable to be 0.4 to 5 times the weight of the electrolytic solution used. In the case of mixing the conductive assistant into the electrolytic solution, the liquid in the electrolytic solution is immersed into or held in the conductive assistant, and the electrolytic solution becomes non-fluidity to make the state of not spilling the liquid just as a dry cell. In the case that the mixing volume of the conductive assistant is under 0.4 times the weight of the electrolytic solution used, the voltage flatness is bad, and the case that the mixing volume of the conductive assistant is over 5 times the weight of the electrolytic solution used is not preferrable because the high energy density possessed by the secondary battery is damaged. |
