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Title: Development of molten-carbonate fuel-cell power plant. Quarterly technical progress report, May 1, 1981-July 31, 1981

Abstract

The major objective of the program for development of a coal-fired molten carbonate fuel cell power plant is to establish and demonstrate readiness for fabrication and test of full-scale prototype stacks. Progress is reported on three program tasks. Under Task 1.0, cost estimates of the four candidate power plant designs were completed by the program participants. Under Task 2.0, the examination of electrode reaction mechanisms has identified a limiting current on gold and nickel wires in a stagnant melt which is a linear function of the concentration of available hydrogen to the wires. Evaluation of corrosion-resistant materials has identified a new alloy, IN 690, which has shown significant corrosion resistance in both the anode and the cathode gas environment. In addition, chromium-coated stainless steel shows superior corrosion resistance in an anode gas atmosphere; however, it does not appear to offer corresponding protection on the cathode side. In advanced component development, a layer of SrTiO/sub 3/ powder plated with Ni has been sintered to a layer of Ni-10Cr to form a bubble pressure barrier anode. Also, curling and cracking problems of 4 in. x 4 in. cathodes formed out-of-cell were solved. In another area, the spray-drying processing conditions and raw materialsmore » were varied in an effort to improve LiA10/sub 2/ morphology and phase distributions. Only partial success was achieved in that high ..beta..-phase content LiA10/sub 2/ was produced but with lower than desired surface areas. Temperature mapping studies were performed on 4 in. x 4 in. bench-scale cells to identify performance sensitivity to temperature gradients. Lastly, in commercial-sized component work, temperature variations that caused density variations in the first 50 in. x 50 in. tile were eliminated by rearrangement of mold heaters. (WHK)« less

Publication Date:
Research Org.:
General Electric Co., Schenectady, NY (USA). Energy Systems Programs Dept.
OSTI Identifier:
5270314
Report Number(s):
DOE/ET/17019-6
ON: DE82015585
DOE Contract Number:  
AC02-80ET17019
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of document are illegible
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; FUEL CELL POWER PLANTS; COST; DESIGN; MOLTEN CARBONATE FUEL CELLS; PERFORMANCE TESTING; CORROSION RESISTANCE; ELECTROCHEMISTRY; ELECTRODES; MATERIALS; NICKEL; RESEARCH PROGRAMS; STAINLESS STEELS; TEST FACILITIES; ALLOYS; CHEMISTRY; CHROMIUM ALLOYS; CORROSION RESISTANT ALLOYS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELEMENTS; FUEL CELLS; HIGH-TEMPERATURE FUEL CELLS; IRON ALLOYS; IRON BASE ALLOYS; METALS; POWER PLANTS; STEELS; TESTING; TRANSITION ELEMENTS; 300501* - Fuel Cells- Design & Development; 300502 - Fuel Cells- Performance & Testing

Citation Formats

. Development of molten-carbonate fuel-cell power plant. Quarterly technical progress report, May 1, 1981-July 31, 1981. United States: N. p., 1981. Web.
. Development of molten-carbonate fuel-cell power plant. Quarterly technical progress report, May 1, 1981-July 31, 1981. United States.
. 1981. "Development of molten-carbonate fuel-cell power plant. Quarterly technical progress report, May 1, 1981-July 31, 1981". United States.
@article{osti_5270314,
title = {Development of molten-carbonate fuel-cell power plant. Quarterly technical progress report, May 1, 1981-July 31, 1981},
author = {},
abstractNote = {The major objective of the program for development of a coal-fired molten carbonate fuel cell power plant is to establish and demonstrate readiness for fabrication and test of full-scale prototype stacks. Progress is reported on three program tasks. Under Task 1.0, cost estimates of the four candidate power plant designs were completed by the program participants. Under Task 2.0, the examination of electrode reaction mechanisms has identified a limiting current on gold and nickel wires in a stagnant melt which is a linear function of the concentration of available hydrogen to the wires. Evaluation of corrosion-resistant materials has identified a new alloy, IN 690, which has shown significant corrosion resistance in both the anode and the cathode gas environment. In addition, chromium-coated stainless steel shows superior corrosion resistance in an anode gas atmosphere; however, it does not appear to offer corresponding protection on the cathode side. In advanced component development, a layer of SrTiO/sub 3/ powder plated with Ni has been sintered to a layer of Ni-10Cr to form a bubble pressure barrier anode. Also, curling and cracking problems of 4 in. x 4 in. cathodes formed out-of-cell were solved. In another area, the spray-drying processing conditions and raw materials were varied in an effort to improve LiA10/sub 2/ morphology and phase distributions. Only partial success was achieved in that high ..beta..-phase content LiA10/sub 2/ was produced but with lower than desired surface areas. Temperature mapping studies were performed on 4 in. x 4 in. bench-scale cells to identify performance sensitivity to temperature gradients. Lastly, in commercial-sized component work, temperature variations that caused density variations in the first 50 in. x 50 in. tile were eliminated by rearrangement of mold heaters. (WHK)},
doi = {},
url = {https://www.osti.gov/biblio/5270314}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Oct 30 00:00:00 EST 1981},
month = {Fri Oct 30 00:00:00 EST 1981}
}

Technical Report:
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