Modulare Brennstoffzellenkassette zur Bildung eines Feststoffoxydbrennstoffzellenstapels

摘要

A modular fuel cell cassette 100 for use in assembling a fuel cell stack 200 comprising a metal separator plate 104 and a metal cell-mounting plate 102 joined at their edges 111 to form a hollow cassette. A fuel cell subassembly 128 is attached to the mounting plate and extends through an opening 106 in the mounting plate. The plates include openings 108,110,112,114 to form chimney manifolds for supply and exhaust of fuel gas to the anode 134 and air to the cathode 132. A conductive interconnect element 136a extends from the fuel cell subassembly to make contact with the next cassette in a stack. The anode openings in the mounting plate and separator plate are separated by spacer rings 126 such that the cassette is incompressible. A fuel cell stack 200 comprises a plurality of cassettes 100, the mounting plate of one cassette being attached to, and insulated from, the separator plate of the next-adjacent cassette by a peripheral dielectric seal 202 surrounding the interconnect.