Abstract
The SOFC technology under development at Risø National Laboratory (RISØ) and
Topsoe Fuel Cell A/S (TOFC) is based on an integrated approach ranging from basic materials
research on single component level over development of cell and stack manufacturing technology to
system studies and modelling. The effort also comprises an extensive cell and stack testing
program. Systems design, development and test is pursued by TOFC in collaboration with various
partners. The standard cells are thin and robust with dimensions of 12 x 12 cm2 and cell stacks are
based on internal manifolding. Production of cells is being up-scaled continuously. The durability
of the standard stack design with standard cells has been tested for more than 13000 hours including
nine full thermal cycles with an overall voltage degradation rate of about 1% per 1000 hours.
Recently, the degradation rate has been significantly reduced by introduction of improved stack
component materials. 75-cell stacks in the 1+ kW power range have been tested successfully. Stacks
have been delivered in a pre-reduced state to partners and tested successfully in test systems with
natural gas as fuel. The consortium of TOFC and RISØ has an extended program to develop the
SOFC technology all the way to a marketable product. Stack and system modelling including cost
optimisation analysis is used to develop multi kW stack modules for operation in the temperature
range 700-850oC. To ensure the emergence of cost-competitive solutions, a special effort is focused
on larger anode-supported cells as well as a new generation of SOFCs based on porous metal
supports and new electrode and electrolyte materials. The SOFC program comprises development
of next generation of cells and multi stack modules for operation at lower temperature with
increased durability and mechanical robustness in order to ensure long-term competitiveness.
Original language | English |
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Journal | Materials Science Forum |
Volume | 539-543 |
Pages (from-to) | 1309-1314 |
ISSN | 0255-5476 |
DOIs | |
Publication status | Published - 2007 |
Event | 5th International Conference on Processing and Manufacturing of Advanced Materials: THERMEC 2006 - Vancouver , Canada Duration: 4 Aug 2006 → 8 Aug 2006 |
Conference
Conference | 5th International Conference on Processing and Manufacturing of Advanced Materials |
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Country | Canada |
City | Vancouver |
Period | 04/08/2006 → 08/08/2006 |