Further, the present invention provides an electrode for an electric double layer capacitor, which is {TAIL ~ a formed product} of sheet shape prepared by forming a carbonaceous material by means of PTFE as a binder and which has a thickness of from 0.005 to 0.25 mm, a porosity of from 50 to 80% and the tensile strength in one direction is {HEAD ~ at least 1.5 kg}/cm2 