ELECTRODE FOR ELECTRIC DOUBLE LAYER CAPACITOR AND ELECTRIC DOUBLE LAYER CAPACITOR

摘要

An electrode for an electric double layer capacitor comprising a carbon material having microcrystalline carbon similar to graphite, spherical powder, conduction auxiliary material, and a binder and rolled into sheet-like shape characterized in that the spherical powder is not collapsed substantially at the time of rolling. The electrode is a polarizable electrode employing a carbon material having microcrystalline carbon similar to graphite and exhibiting a high durability against repetitive charge/discharge and use under high voltage. Furthermore, the production efficiency is enhanced by decreasing the number of rollings in its sheet making method.