Mitsubishi Rayon Company, Limited

Tomoyoshi Chiba

Mitsuo Hamada

Teruyuki Yamada

Yoshihiko Hosako

Hidehiko Ohashi

Makoto Nakamura

Kazushige Mihara

A carbon fiber paper including carbon fibers having a surface area ratio of 1.05 or more, and a porous carbon electrode substrate for a fuel cell having this carbon fiber paper as a constituent. The electrode substrate for a fuel cell has carbon fibers uniformly dispersed therein and is flexible. The carbon fiber paper is suitable for production of the electrode substrate.

Carbon fiber paper and porous carbon electrode substrate for fuel cell therefrom

An electric double layer capacitor containing a polymer gel electrolyte layer provided between polarizable electrodes, wherein the polymer gel electrolyte layer contains a nonaqueous electrolytic solution, and a fibrous sheet material containing mainly a fiber or pulp material capable of forming a polymer gel with the nonaqueous electrolytic solution.

Electric double layer capacitor and method for preparing the same

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Aichi, Japan

Tomoyoshi Chiba