| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymer battery of excellent performance by using a collector etched with a metallic foil base material and by assembling cells used with an isolating material consisting of a polymer and a plasticizer to substitute the plasticizer with an electrolytic solution. SOLUTION: In the base material of a collector 1, an aluminum foil for a positive electrode and a copper foil for a negative electrode are usually used. The collector 1 has a plurality of openings; preferably a honeycomb shape of a hexagon for enhancing impedance characteristics of a battery or capacitance utilization ratio. The average diameter of the opening is preferably 0.5-2 mm. No opening is provided in a lead wire part 2. A positive electrode material formed in a sheet shape is integrated with a positive electrode collector, a negative electrode material is integrated with a negative electrode collector and an isolating material film is sandwiched therebetween to integrate these three. This integrated product is immersed in an extraction solvent to extract a plasticizer. The solvent is preferably a low boiling point solvent such as a methanol compatible with the plasticizer and inert to a polymer. Then, the integrated product is immersed in an electrolyte, the plasticizer is substituted with the electrolyte, the lead wire 2 is removed and sealed to be a polymer electrode. |
