Advancing towards ready-to-use solid oxide fuel cells: 5 minute cold start-up with high-power performance
- Authors
- Jeong, Hyeseong; Lee, Channyung; Son, Ji-Won; Lee, Seung Yong; Yoon, Kyung Joong; Shin, Dongwook; Choi, Mansoo; Shin, Sung Soo; Kim, Hyoungchul
- Issue Date
- Apr-2023
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY A, v.11, no.14, pp 7415 - 7421
- Pages
- 7
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY A
- Volume
- 11
- Number
- 14
- Start Page
- 7415
- End Page
- 7421
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/21628
- DOI
- 10.1039/d2ta09092a
- ISSN
- 2050-7488
2050-7496
- Abstract
- The development of low-temperature solid oxide fuel cells (LT-SOFCs) as a mobile power source is attracting attention; however, limited understanding of rapid LT-SOFC operation constrains their use. Here, we present a high-performance LT-SOFC system capable of rapid thermal cycling and cold start-up, akin to ready-to-use. To achieve a ready-to-use LT-SOFC system, we modified a compact compressive sealing architecture implemented with a stacked disc spring, and a rapid thermal cycling with cold start-up was realized using a lamp heater. This LT-SOFC system reached target temperatures within 5 min of start-up and immediately exhibited an open-circuit potential of 1.124 V and a maximum power density of 1.123 W cm(-2) at 600 degrees C. We evaluated this system with harsh thermal cycling (25-500 or 600 degrees C) for 3000 min and confirmed its degradation behavior in perovskite phase separation and interfacial delamination. Our results provide another breakthrough in LT-SOFC development for mobile applications.
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