Investigation of PEMFC Stack Operating at Elevated Temperature

被引：0
|
作者：
Zhang, Hao [1 ,2 ]
Yang, Daijun [1 ,2 ]
Tao, Kan [2 ]
Zheng, Xiaoliang [1 ,2 ]
Ma, Jianxin [1 ,2 ]
机构：
[1] Tongji Univ, Sch Automot Studies, 4800 Caoan Rd, Shanghai 201804, Peoples R China
[2] Tongji Univ, Clean Energy Automot Engn Ctr, Shanghai 201804, Peoples R China
来源：
25TH WORLD BATTERY, HYBRID AND FUEL CELL ELECTRIC VEHICLE SYMPOSIUM AND EXHIBITION PROCEEDINGS, VOLS 1 & 2 | 2010年
关键词：
PEMFC; Elevated temperature; Relative humidity; Tolerance to CO; FUEL-CELLS; PERFORMANCE; MEMBRANES; ACID;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
PEMFC operating at elevated temperature has many advantages compared to low temperature PEMFC. With the adoption of short side chain, low EW PFSA membrane, the operating temperature of a 100W stack was elevated to 95 C-degrees to investigate its performance. The stack performance was tested with (1)60% RH air and 70% RH H-2, (2)60% RH air and dry H-2, respectively. The results showed that average cell power density with dry H-2 was 30% lower than that with 70% RH H-2. Furthermore, the cells presented the best uniformity when operating at 85 C-degrees. The stack tolerance to CO at elevated temperature was also investigated with 5ppm, 10ppm and 20ppm CO, respectively. The results demonstrated that elevating the operating temperature to 95 C-degrees could improve the anode catalyst tolerance to CO, and when CO concentration doubled, the performance attenuation rate of stack doubled as well. Copyright Form of EVS25.
引用
收藏
页码：961 / 964
页数：4
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