ELECTROLYTE COMPOSITION FOR ELECTRIC DOUBLE LAYER CAPACITOR, SOLID POLYMER ELECTROLYTE, COMPOSITION FOR POLARIZABLE ELECTRODE, POLARIZABLE ELECTRODE, AND ELECTRIC DOUBLE LAYER CAPACITOR

An electrolyte composition and a solid polymer electrolyte for electric double-layer capacitors are endowed with high ionic conductivity, high tackiness and shape retention. The invention is also directed at a polarizable electrode-forming composition and a polarizable electrode having a high adhesion, high dielectric properties, and excellent shape retention. A high-performance electric double-layer capacitor arrived at using the above compositions and components is additionally disclosed.