A fuel cell stack made of a plurality of cell units stacked and operatively connected at one end thereof. Each of the units includes a holder having at least one cell, typically provided as an SOFC membrane, to produce an electric current when fuel and oxidant are present as the result of an electrochemical reaction.
STATEMENT OF GOVERNMENTAL SUPPORT
 This invention was made during work supported by U.S. Department of Energy under Contract No. DE-AC03-76SF00098. The government has certain rights in this invention.