title: Micro solid oxide fuel cell fabricated on porous stainless steel: a new strategy for enhanced thermal cycling ability.
abstract: 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, nano-porous 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 °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.
authors.affiliation: Department of Materials Science and Engineering/Fuel Cell Research Center Pohang University of Science and Technology (POSTECH), 77 Cheongamro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea.
authors.forename: Kun Joong
authors.initials: KJ
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering/Fuel Cell Research Center Pohang University of Science and Technology (POSTECH), 77 Cheongamro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea.
authors.forename: Byung Hyun
authors.initials: BH
authors.lastname: Park
authors.affiliation: Department of Materials Science and Engineering/Fuel Cell Research Center Pohang University of Science and Technology (POSTECH), 77 Cheongamro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea.
authors.forename: Sun Jae
authors.initials: SJ
authors.lastname: Kim
authors.affiliation: Research Institute of Industrial Science and Technology (RIST) Pohang 790-330, Republic of Korea.
authors.forename: Younki
authors.initials: Y
authors.lastname: Lee
authors.affiliation: Research Institute of Industrial Science and Technology (RIST) Pohang 790-330, Republic of Korea.
authors.forename: Hongyeul
authors.initials: H
authors.lastname: Bae
authors.affiliation: Department of Materials Science and Engineering/Fuel Cell Research Center Pohang University of Science and Technology (POSTECH), 77 Cheongamro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea.
authors.forename: Gyeong Man
authors.initials: GM
authors.lastname: Choi