Investigation of three system shut-down strategies alongside optimization suggestion for proton exchange membrane fuel cells via in-situ measurements

Wang，Yajun1,2; Zhang，Xiaoming3; Feng，Qi1,3; Zou，Jiexin1,2; Zhou，Chang1,3; Zeng，Lin2; Fan，Jiantao3; Zhao，Haizhu4; Huang，Huaqiang4; Fu，Huang4; Li，Hui3; Wang，Haijiang2

2020-01-26

10.1080/15435075.2020.1712212

International Journal of Green Energy   影响因子和分区

1543-5075

1543-5083

Carbon corrosion caused by H/O interface during the shut-down process is one of the factors that exacerbate the overall degradation of proton exchange membrane fuel cells (PEMFC) in automotive applications. Numerous studies have shown that system strategies are beneficial for reducing the duration of H/O interface and alleviating performance degradation. In this paper, three different shut-down strategies are investigated and compared based on the internal behaviors acquired by in-situ measurements. For the three shut-down strategies, reverse current and high potential are mainly observed in a lower constant current and constant power strategy. Comparatively speaking, the internal uniformity of the cell under constant current and power load is better than that with constant voltage strategy when the shut-down time is about the same. The results suggest that adopting a higher constant power load followed by a larger voltage load during the shut-down process can effectively shorten the shut-down time and relieve carbon corrosion. These results add significant new insights into the shut-down process and will be of practical importance in directing design of combined shut-down strategy that can withstand carbon corrosion.

Current density distribution In-situ measurement PEMFC Shut-down strategy Temperature and RH distribution Uniformity

SCI ; EI

英语

通讯

Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06N500] ; Guangdong Province Introduction of Innovative R&D Team[2016ZT06N500] ; Development and Reform Commission of Shenzhen Municipality[2017 No.1106] ; National Basic Research Program of China (973 Program)[2017YFB0102701] ; Shenzhen Peacock Plan[KQTD2016022620054656]

Thermodynamics ; Science & Technology - Other Topics ; Energy & Fuels

Thermodynamics ; Green & Sustainable Science & Technology ; Energy & Fuels

WOS:000506435300005

Taylor and Francis Inc., 325 Chestnut St, Suite 800, Philadelphia, PA 19106, United States

20200207998161

Carbon ; Corrosion

Fuel Cells:702.2 ; Chemical Products Generally:804

2-s2.0-85077501698

Scopus

1.School of Mechanical and Electrical Engineering,Harbin Institute of Technology,Harbin,China
2.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,China
3.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Hydrogen Energy,Southern University of Science and Technology,Shenzhen,China
4.Shenzhen Nan Ke Fuel Cell Co. Ltd,Shenzhen,China

Wang，Yajun,Zhang，Xiaoming,Feng，Qi,et al. Investigation of three system shut-down strategies alongside optimization suggestion for proton exchange membrane fuel cells via in-situ measurements[J]. International Journal of Green Energy,2020,17(2):157-170.

Wang，Yajun.,Zhang，Xiaoming.,Feng，Qi.,Zou，Jiexin.,Zhou，Chang.,...&Wang，Haijiang.(2020).Investigation of three system shut-down strategies alongside optimization suggestion for proton exchange membrane fuel cells via in-situ measurements.International Journal of Green Energy,17(2),157-170.

Wang，Yajun,et al."Investigation of three system shut-down strategies alongside optimization suggestion for proton exchange membrane fuel cells via in-situ measurements".International Journal of Green Energy 17.2(2020):157-170.