Hollow-shaped membrane electrode assembly for fuel cell and hollow-type fuel cell
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsShigeaki Murata, Haruyuki Nakanishi, Masahiro Imanishi, Yoshihisa Tamura
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Abstract
There is provided a hollow-shaped membrane electrode assembly for a fuel cell capable of improving power density per unit volume, wherein the hollow-shaped membrane electrode assembly for a fuel cell comprises a hollow solid electrolyte membrane, an outer electrode layer formed on the outer circumferential surface of the solid electrolyte membrane and an inner electrode layer formed on the inner circumferential surface of the solid electrolyte membrane, and wherein the hollow-shaped membrane electrode assembly for a fuel cell is formed in the shape of a spiral.
Claims8
A hollow-type fuel cell comprising:
- a rod-like member, and
- a hollow-shaped cell which is disposed in a spirally winding manner around an outside of the rod-like member and comprises a hollow-shaped membrane electrode assembly comprising a solid electrolyte membrane in a hollow shape, an outer electrode layer formed on an outer circumferential surface of the solid electrolyte membrane, and an inner electrode layer formed on an inner circumferential surface of the solid electrolyte membrane,
- wherein first gas channel grooves oriented parallel to an axial direction of the rod-like member and second gas channel grooves oriented to intersect the first channel grooves of the rod-like member are separately formed on an outer circumferential surface of the rod-like member.
Dependencies are inferred from the claim text.