Anode supported planar solid oxide fuel cells with the large size of 30 cm × 30 cm via tape-casting and co-sintering technique. (21st January 2016)

• Record Type: Journal Article
• Authors: Xue, Yejian; Guan, Wanbing; He, Changrong; Liu, Wu; Wang, Jianxin; Sun, Shanshan; Wang, Zhenwei; Wang, Weiguo
• Is Part Of: International journal of hydrogen energy. Volume 41:Number 3(2016)
• Page Start: 1871
• Page End: 1876
• Publication Date: 2016-01-21
• Subjects: Anode supported -- Large size -- Solid oxide fuel cell -- Tape casting -- Co-sintering technique; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2015.12.032
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: In this work, the NiO−8YSZ/8YSZ half-cells for planar ASCs with the large size of 30 cm × 30 cm are prepared by optimizing both the sintering characteristics and the sintering temperature. The shrinkage rates, open porosities and flexural strength of the half-cells are investigated systematically. The large size half-cells which are prepared by the tape-casting, co-sintering and two-step sintering method show the optimal comprehensive performances with the sintering temperature being 1350 °C. The NiO+8YSZ/8YSZ/LSM+8YSZ anode-supported single cells are obtained at the sintering temperature of 1050 °C. The maximum measurement power at output voltage of 0.8 V of the two cells and 1.6 V of the stack can reach 32.6 W, 34.7 W and 67.3 W, respectively. The two-cells stack is successively discharged under constant current of 5 A for 316 h with the degradation rate of 1.58% kh −1 and 30 A for 1161 h with no degradation at the temperature of 750 °C. The large size ASCs show the good mechanical strength and an acceptable degradation. Highlights: The planar ASCs with the size of 30 cm × 30 cm were prepared. The measurement Pmax of the two-cell short stack could reach 67.3 W at 750 °C. The stack showed an acceptable degradation under constant current discharge.