High-temperature fuel cell
AssigneeInteratom GmbH
InventorsThomas Jansing, Martin Turwitt
Life of this patent
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Abstract
A high-temperature fuel cell includes two chambers to be acted upon by a reaction gas. A partition is formed of an oxygen-conducting ceramic material with a given coefficient of thermal expansion. The partition separates the chambers from one another and defines outer walls of the chambers opposite the partition and side walls of the chambers contacting the partition. Electrodes are each disposed at a respective side of the partition. The outer walls are formed of a soft metal sheet having at least one corrugation for compensation of expansion and the side walls are formed of a material with the given coefficient of thermal expansion. A high-temperature fuel cell stack may include a plurality of series-connected high-temperature fuel cells.
Claims17
A high-temperature fuel cell, comprising:
- a) two chambers to be acted upon by a reaction gas,
- b) a partition having sides and being formed of an oxygen-conducting ceramic material with a given coefficient of thermal expansion, said partition separating said chambers from one another, and
- c) electrodes each being disposed at a respective side of said partition,
- d) outer walls of said chambers disposed opposite said partition and side walls of said chambers contacting said partition, said outer walls being formed of a soft metal sheet having at least one corrugation for compensation of expansion, and
- e) said side walls being formed of a material with said given coefficient of thermal expansion.
A high-temperature fuel cell stack, comprising a plurality of series-connected high-temperature fuel cells, each of said fuel cells including:
- a) two chambers to be acted upon by a reaction gas,
- b) a partition having sides and being formed of an oxygen-conducting ceramic material with a given coefficient of thermal expansion, said partition separating said chambers from one another,
- c) electrodes each being disposed at a respective side of said partition,
- d) outer walls of said chambers disposed opposite said partition and side walls of said chambers contacting said partition, said outer walls being formed of a soft metal sheet having at least one corrugation for compensation of expansion, and
- e) said side walls being formed of a material with said given coefficient of thermal expansion, and
- f) electrically conductive connections each joining a respective one of said electrodes to a respective opposite one of said outer walls, said electrically conductive connections passing through and being tightly soldered to said sheets forming said outer walls of said fuel cells.
Dependencies are inferred from the claim text.