Method of manufacturing polarizable electrode for electric double-layer capacitor

A method of manufacturing a polarizable electrode for an electric double-layer capacitor, comprising the following steps in the order recited:

• forming a kneaded substance of fine carbon powder, a polymer resin containing fluorine, and a liquid lubricant into a sheet preform;
• stacking a plurality of said sheet preforms at end portions thereof and rolling and thereby joining said sheet performs into a continuous long preform;
• semi-drying said sheet preform to adjust the content of said lubricant in said long preform to 10 to 47 percent by weight;
• shaping said long preform with rolls rotated at a circumferential speed of substantially 0.7 to 5 m/min, to shape said long preform into a sheet substantially 0.04 to 0.5 mm in thickness;
• and
• removing said liquid lubricant from said sheet.

A method of manufacturing a polarizable electrode for an electric double-layer capacitor, comprising the following steps in the order recited:

• forming a kneaded substance of fine carbon powder, a polymer resin containing fluorine, and a liquid lubricant into a sheet preform;
• semi-drying said sheet preform to adjust the content of said liquid lubricant in said sheet preform to 20 to 47 percent by weight;
• stacking a plurality of said sheet preforms at end portions thereof and rolling and thereby joining the same into a continuous long preform;
• shaping said long preform with rolls rotated with a circumferential speed of substantially 0.7 to 5 m/min, to shape said long preform into a sheet substantially 0.04 to 0.5 mm in thickness;
• and
• removing said liquid lubricant from said sheet.