FUEL CELL ELEMENT

摘要

A fuel cell element (2) comprising a tube (4) of a solid electrolyte. An outer electrode (6) is provided on an outside of the tube and an inner electrode (8) is provided in an inside of the tube. A ring (10, 12) formed of an electrically conducting material is mounted to the tube (4) and is electrically connected to said tube (4). The ring (10, 12) has a first surface intended to be mountable to and slidingly engageable with a substantially complementary shaped second surface of a wall of conduit means to supply a gaseous consumable to an interior of the tube (4) or to carry gas from said interior. The mounting of the ring (10, 12) to and the engaging of the ring (10, 12) with said second surface is to provide an electrical connection between the fuel cell element (2) and the conduit means.