期刊
JOURNAL OF POWER SOURCES
卷 184, 期 1, 页码 84-89出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2008.05.083
关键词
solid oxide fuel cell; cell stack; high electrical conversion efficiency; durability
We have developed a I kW class solid oxide fuel cell (SOFC) stack composed of 50 anode-supported planar 120-mm-diameter SOFCs. Intermediate plates, which exhibited negligible deformation under operating conditions, were placed in the stack to cancel out the cumulative error related to the position and angle of the stack parts. The stack provided an electrical conversion efficiency of 54% (based on the lower heating value (LHV) of the methane used as a fuel) and an output of 1120W when the fuel utilization, current density, and operating temperature were 67%, 0.28 Acm(-2), and 1073 K, respectively. The stack operated stably for almost 700 h. (C) 2008 Elsevier B.V. All rights reserved.
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