Aisin Seiki Kabushiki Kaisha

Michiaki Katoh

Shinji Nezu

Michio Asukabe

Chiaki Yamada

A solid polyelectrolyte fuel cell has (a) a positive electrode, (b) a negative electrode, and (c) a solid polyelectrolyte membrane containing water, between the positive electrode and the negative electrode, where the water content of portions of the solid polyelectrolyte membrane adjacent to the negative electrode is greater than the water content of portions of the solid polyelectrolyte membrane adjacent to the positive electrode. The cell outputs high voltage and has good properties.

Solid polyelectrolyte fuel cell having a solid polyelectrolyte membrane with varying water content

A solid polyelectrolyte membrane for a fuel cell includes (a) a hydrocarbon polymer grafted fluorine polymer, which contains sulfonic acid groups, and (b) whisker fibers, fixed to the grafted fluorine polymer. The fiber may be surface-treated with a silane coupling agent which reacts with the fluorine polymer and the fibers, prior to graft-copolymerization.

Growing community of inventors

Aichi-ken, Japan

Michiaki Katoh