An object of this invention is to achieve the current collecting structure and the electrode structure with good electrical conductivity and ionic conductivity which are comprised of the current collecting substrate and the current collecting structure or ...

An electric double layer capacitor (1) has a pair of activated carbon electrodes (3,4) and an organic solution in which an electrolyte is dissolved in an organic solvent. An electrolyte solution is also provided. In the electric double layer capacitor (1),...