Low temperature operating micro solid oxide fuel cells with perovskite type proton conductors

Fumitada Iguchi, Kensuke Kubota, Yu Inagaki, Shuji Tanaka, Noriko Sata, Masayoshi Esashi, Hiroo Yugami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We fabricated micro solid oxide fuel cells with perovskite type proton conductors on silicon substrates, and evaluated their electrical properties using electrochemical impedance spectroscopy (EIS). The cells with 15 mol% yttrium-doped BaZrO 3 and Pt-Pd electrodes could resist several thermal cycles from room temperature to 317°C, and they showed sufficient open circuit voltage over 1 V around 300°C, if physical gas leakage was properly prevented. Maximum power density of cells reached 8.4 mW/cm at 270°C. This value was quite promising for low temperature operation. But, the results of power generation test were so different from each other and difference was sometimes over two orders of magnitude. EIS results indicated the contribution of electrolyte resistance to total resistance was small and those differences were due to the difference of electrode reaction components.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 12, SOFC XII
Pages777-783
Number of pages7
Edition1 PART 1
DOIs
Publication statusPublished - 2011 Dec 1
Event12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting - Montreal, QC, Canada
Duration: 2011 May 12011 May 6

Publication series

NameECS Transactions
Number1 PART 1
Volume35
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting
CountryCanada
CityMontreal, QC
Period11/5/111/5/6

ASJC Scopus subject areas

  • Engineering(all)

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