A 5 x 5 cm(2) protonic ceramic fuel cell with a power density of 1.3 W cm(-2) at 600 degrees C
- Authors
- An, Hyegsoon; Lee, Hae-Weon; Kim, Byung-Kook; Son, Ji-Won; Yoon, Kyung Joong; Kim, Hyoungchul; Shin, Dongwook; Ji, Ho-Il; Lee, Jong-Ho
- Issue Date
- Oct-2018
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- NATURE ENERGY, v.3, no.10, pp.870 - 875
- Indexed
- SCIE
SCOPUS
- Journal Title
- NATURE ENERGY
- Volume
- 3
- Number
- 10
- Start Page
- 870
- End Page
- 875
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/16041
- DOI
- 10.1038/s41560-018-0230-0
- ISSN
- 2058-7546
- Abstract
- In spite of various advantages of protonic ceramic fuel cells over conventional fuel cells, distinct scepticism currently remains about their applicability because of lower-than-predicted performance and difficulty with scale-up. These challenges mainly stem from the refractory nature of proton-conducting ceramic electrolytes and the low chemical stability of these materials during the sintering process. Here, we present the fabrication of a physically thin, structurally dense and chemically homogeneous electrolyte, BaCe0.55Zr0.3Y0.15O3-delta (BCZY3), through a facile anode-assisted densification of the electrolyte on a structurally and compositionally uniform anode support, which resulted in breakthroughs in performance and scalability. A BCZY3-based protonic ceramic fuel cell with a size of 5 x 5 cm(2) exhibits an area-specific ohmic resistance of 0.09 Omega cm(2) and delivers a power as high as 20.8W per single cell at 600 degrees C.
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