Effect of conductivity and adhesive properties of cathode current-collecting layer on cell performance inside stack for planar solid oxide fuel cells

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	Effect of conductivity and adhesive properties of cathode current-collecting layer on cell performance inside stack for planar solid oxide fuel cells
	Wang, Guoliang ; Wu, Wei ; Guan, Wanbing ; Jin, Le ; Wang, Wei Guo
刊名	CERAMICS INTERNATIONAL
	2014
卷号	40 期号:7 页码:11023
中文摘要	Effects of conductivity and adhesive properties of cathode current-collecting layer (CCCL) on cathode contact resistance and cell performance inside a solid oxide fuel cell (SOFC) stack during operation are investigated by adding Al2O3 to the CCCL of (La0.75Sr0.25)(0.95)MnO3+delta The conductivity of LSM-15 wt% Al2O3 composite CCCL decreases from 141.6 S cm(-1) to 23.7 S cm(-1) at 800 degrees C, whereas its adhesion to SUS 430 interconnect and LSM-YSZ active cathode increases by 2.5 and 1.8 times, respectively. The area specific resistance (ASR) of SUS 430/CCCL/LSM-YSZ sandwich at 800 degrees C is tested. The result shows that ASR of SUS 430/ LSM-15 wt% Al2O3 /LSM-YSZ sandwich is approximately 2.5 times smaller than that of the SUS 430/LSM /LSM-YSZ sandwich. The maximum output power density (MOPD) of the unit cell with LSM-15 wt% Al2O3 CCCL is slightly higher than that of the cell with pure LSM CCCL at 800 degrees C. The degradation rate of the unit cell with LSM-15 wt% Al2O3 CCCL is nearly 1/7 of the unit cell with pure LSM being discharged at a constant DC of 0.32 A cm(-2) for about 100 h. Consequently, the addition of adhesive to CCCL is much more conducive to improve the long-term stability of the stack operation. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
公开日期	2015-09-20
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/11800]
专题	宁波材料技术与工程研究所_2014专题
推荐引用方式 GB/T 7714	Wang, Guoliang,Wu, Wei,Guan, Wanbing,et al. Effect of conductivity and adhesive properties of cathode current-collecting layer on cell performance inside stack for planar solid oxide fuel cells[J]. CERAMICS INTERNATIONAL,2014,40(7):11023.
APA	Wang, Guoliang,Wu, Wei,Guan, Wanbing,Jin, Le,&Wang, Wei Guo.(2014).Effect of conductivity and adhesive properties of cathode current-collecting layer on cell performance inside stack for planar solid oxide fuel cells.CERAMICS INTERNATIONAL,40(7),11023.
MLA	Wang, Guoliang,et al."Effect of conductivity and adhesive properties of cathode current-collecting layer on cell performance inside stack for planar solid oxide fuel cells".CERAMICS INTERNATIONAL 40.7(2014):11023.