Intermediate-temperature operation of solid oxide fuel cells (IT-SOFCs) with thin film proton conductive electrolyte

[摘要] A novel solid oxide fuel cell (SOFC) structure, which is fabricated on a Pd-plated porous stainless steel substrate, was proposed for low-temperature SOFC operation. The surface of the substrate was covered with Pd layer without any pores, which reduces the difficulty of depositing thin film electrolyte on the porous substrate. A 1.2-μm thick proton conductive Sr(Zr0.8Y0.2)O3-δ(SZYO) layer and the cathode of a 100-nm thick (La0.6Sr0.4)(Co0.2Fe0.8)O3-δ(LSCF) layer were deposited on the Pd-plated substrates by the pulsed laser deposition (PLD) method. The low temperature operations at 400 and 450 °C were demonstrated with proposed SOFC cells.

[发布机构] Department of Innovative and Engineered Materials, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama; 226-8502, Japan^1;Research and Development Canter, Sanyo Special Steel Co., Ltd, 3007 Nakashima, Himeji, Shikama-ku, Hyogo; 672-8677, Japan^2;Department of Creative Engineering, National Institute of Technology, Tsuruoka College, Inooka Sawada 104, Tsuruoka, Yamagata; 997-8511, Japan^3;Institute of Semiconductor and Electronics Technologies, ULVAC, Inc., 1220-1 Suyama, Shizuoka, Susono; 410-1231, Japan^4

[效力级别] 能源学

[关键词] Intermediate temperature operation;IT-SOFCs;Low temperatures;Porous stainless steel substrate;Porous substrates;Proton-conductive electrolytes;Thin film electrolytes