Development of planar solid oxide fuel cells for power generation applications
- AlliedSignal Aerospce Equipment Systems, Torrance, CA (United States)
Planar solid oxide fuel cells (SOFCs) are presently being developed for a variety of electric power generation application. The planar design offers simple cell geometry, high power density, and multiple fabrication and gas manifolding options. Planar SOFC technology has received much attention recently, and significant progress has been made in this area. Recent effort at AlliedSignal has focused on the development of high-performance, lightweight planar SOFCs, having thin-electrolyte films, that can be operated efficiently at reduced temperatures (< 1000{degrees}C). The advantages of reduced-temperature operation include wider material choice (including use of metallic interconnects), expected longer cell life, reduced thermal stress, improved reliability, and reduced fuel cell cost. The key aspect in the development of thin-film SIFCs is to incorporate the thin electrolyte layer into the desired structure of cells in a manner that yields the required characteristics. AlliedSignal has developed a simple and cost-effective method based on tape calendering for the fabrication of thin-electrolyte SOFCs. Thin-electrolyte cells made by tape calendering have shown extraordinary performance, e.g., producing more than 500mW/cm{sup 2} at 700{degrees}C and 800mW/cm{sup 2} at 800{degrees}C with hydrogen as fuel and air is oxidant. thin-electrolyte single cells have been incorporated into a compliant metallic stack structure and operated at reduced and operated at reduced-temperature conditions.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- OSTI ID:
- 269306
- Report Number(s):
- SAND-96-0945; CONF-9509355-; ON: DE96010752; TRN: 96:003872-0037
- Resource Relation:
- Conference: U. S. Russian workshop on fuel cell technologies, Albuquerque, NM (United States), 26-28 Sep 1995; Other Information: PBD: Apr 1996; Related Information: Is Part Of Proceedings -- US Russian workshop on fuel cell technologies; Baker, B.; Sylwester, A. [comps.]; PB: 695 p.
- Country of Publication:
- United States
- Language:
- English
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