Development of Intermediate-temperature SOFC Modules and Systems

• Published in: ECS transactions Vol. 12; no. 1; pp. 391 - 399
• Main Authors: Shibata, Makoto, Murakami, Naoya, Akbay, Taner, Hoshino, Koji, Hosoi, Kei, Nakajima, Hiroaki, Kano, Jiro, Nishiwaki, Futoshi, Inagaki, Toru, Yamasaki, Satoru
• Format: Journal Article
• Language: English
• Published: 01.01.2008
• ISSN: 1938-5862; 1938-6737
• DOI: 10.1149/1.2921565

Mitsubishi Materials Corporation and The Kansai Electric Power Co., Inc. have been jointly developing intermediate-temperature solid oxide fuel cells as stationary power generation units since 2001. High performance LSGMC cells and a unique seal-less cell-stack design enable high efficiency operation at temperatures below 800oC. The 1st long-term durability test over 4,200 hours of the 4th generation 1kW-class module was ended in 2006 with a voltage degradation rate of about 0.5%/1000hours. And the 2nd durability test and output fluctuation tests were conducted in 2007. Scaling-up of the module toward 10kW-class has been successfully done and the electrical efficiency of 50% HHV on DC output was achieved in 2006. The first field test of 10kW-class CHP system was performed in 2007.