Micro solid oxide fuel cell fabricated on porous stainless steel: a new strategy for enhanced thermal cycling ability

被引:42
作者
Kim, Kun Joong [1 ]
Park, Byung Hyun [1 ]
Kim, Sun Jae [1 ]
Lee, Younki [2 ]
Bae, Hongyeul [2 ]
Choi, Gyeong Man [1 ]
机构
[1] Pohang Univ Sci & Technol POSTECH, Fuel Cell Res Ctr, Dept Mat Sci & Engn, 77 Cheongamro, Pohang 37673, Gyeongbuk, South Korea
[2] Res Inst Ind Sci & Technol RIST, Pohang 790330, South Korea
基金
新加坡国家研究基金会;
关键词
THERMOMECHANICAL STABILITY; TEMPERATURE; CONDUCTIVITY; PERFORMANCE; EXPANSION; LANTHANUM;
D O I
10.1038/srep22443
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Miniaturized solid oxide fuel cells (micro-SOFCs) are being extensively studied as a promising alternative to Li batteries for next generation portable power. A new micro-SOFC is designed and fabricated which shows enhanced thermal robustness by employing oxide-based thin-film electrode and porous stainless steel (STS) substrate. To deposit gas-tight thin-film electrolyte on STS, nanoporous composite oxide is proposed and applied as a new contact layer on STS. The micro-SOFC fabricated on composite oxide-STS dual layer substrate shows the peak power density of 560 mW cm(-2) at 550 degrees C and maintains this power density during rapid thermal cycles. This cell may be suitable for portable electronic device that requires high power-density and fast thermal cycling.
引用
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页数:8
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