Solid oxide fuel cell
AssigneeNGK Insulators, Ltd.
InventorsTakeshi Ishihara, Hidenobu Misawa, Satoru Yamada
Life of this patent
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Abstract
A solid oxide fuel cell including tube-shaped solid oxide fuel cell elements. One gas selected from an oxidizing gas and a fuel gas flows in an internal space of the element, and the other gas flows in an external space of the element. A means for converting an oxidizing gas-flow and/or a fuel gas-flow into turbulent flow is provided in the internal space and/or the external space. The converting means is preferably an elongated body such as a tube-shaped body, a solid pillar-shaped body, a hollow-cylindrical body, a solid-cylindrical body and a rod with plates, extending in the longitudinal direction of the element.
Claims13
A solid oxide fuel cell comprising:
- a plurality of elongate, tube-shaped solid oxide fuel cell elements arranged in parallel and defining external spaces between adjacent fuel cell elements;
- a gas flow passage defined in each fuel cell element for receiving therein one of an oxidizing gas or a fuel gas, wherein the other one of said oxidizing gas or fuel gas flows in said external spaces between said fuel cell elements;
- means for electrically connecting electrodes of adjacent fuel cell elements;
- means for converting gas flow in said external spaces into turbulent flow at surfaces of fuel cell element electrodes exposed to said external spaces, said converting means comprising elongate bodies arranged in said external spaces and extending in a longitudinal direction of said fuel cell elements.
Dependencies are inferred from the claim text.