Development of planar geometry solid oxide fuel cell technology. Phase II-C. Final report, May 1991-April 1992
The report describes the progress made in planar solid oxide fuel cell stack technology. The work builds on the technology developed in the earlier phases where the feasibility of low cost ceramics fabrication technology to fabricate stacks was established. The effort focused on three technology areas: qualification of the advanced interconnection material in stack tests, stack performance diagnostics, and manifold design and seal development. Long term testing of single cells and stacks were conducted. Additionally, progress was made in electrode optimization. This resulted in demonstration of high fuel utilization (80%) in single cells. A rigorous quality improvement approach was undertaken in all aspects of Solid Oxide Fuel Cell (SOFC) development in recognition of the need to scale up technology for the eventual commercial manufacture of SOFC stacks and systems. Manufacturing tolerances were studied and, via a statistical design of experiments approach, methods defined to improve tolerances and process yields. Finally, as a result of the stack and module engineering design activity, advancements have been made to seal and module manifold development. Seal tests conducted on new manifold concepts have shown a 100 fold decrease in reactant gas leak rates at temperature, pointing to the possibility of developing high efficiency planar SOFC stacks.
- Research Organization:
- Ceramatec, Inc., Salt Lake City, UT (United States)
- OSTI ID:
- 6877117
- Report Number(s):
- PB-95-148607/XAB; PROG-9260704; CNN: GRI-5086-294-1292
- Resource Relation:
- Other Information: See also PB--93-232650 and DE93000248
- Country of Publication:
- United States
- Language:
- English
Similar Records
Advanced alternate planar geometry solid oxide fuel cells. Final report
Advanced Solid Oxide Fuel Cell Components Enabled through Additive Manufacturing