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电化学(中英文) ›› 2000, Vol. 6 ›› Issue (3): 284-284. 

• 研究论文 • 上一篇    下一篇

阳极负载型SOFC阳极基底厚度对性能的影响

张义煌,江义,卢自桂,董永来,阎景旺   

  1. 中国科学院大连化学物理研究所!辽宁大连116023,中国科学院大连化学物理研究所!辽宁大连116023,中国科学院大连化学物理研究所!辽宁大连116023,中国科学院大连化学物理研究所!辽宁大连116023,中国科学院大连化学物理研究所!辽宁大连116023
  • 收稿日期:2000-08-28 修回日期:2000-08-28 出版日期:2000-08-28 发布日期:2000-08-28

The Effect of Anode Thickness in SOFCs with Anode Supported YSZ Film

ZHANG Yi huang, JIANG Yi *, LU Zi gui, DONG Yong lai, YAN Jing wang   

  1. (Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, China
  • Received:2000-08-28 Revised:2000-08-28 Published:2000-08-28 Online:2000-08-28

摘要: 制备不同厚度阳极负载型YSZ薄膜固体氧化物燃料电池 ,并对电池的极化、放电性能进行了测试 .结果表明 ,电池的性能明显受阳极性能的影响 ,阳极过电位大的原因之一是受多孔阳极气体扩散的影响 .降低阳极基底的厚度 ,阳极过电位明显减小 ,电池性能明显提高 .当阳极基底厚度为 0 .5mm时 ,在 80 0℃工作温度下 ,电池的功率密度达到 0 .1 9W·cm- 2 ,较之阳极厚度为 1 .0mm的电池性能提高近 1 .5倍 (0 .1 3W·cm- 2 ) .

关键词: 阳极极化, YSZ薄膜, 浓差极化, 固体氧化物燃料电池

Abstract: Solid oxide fuel cells with supported yttria stabilized zirconia electrolyte films on anode substrates of various thickness have been fabricated. The electrochemical performances of the SOFCs have been examined. The results showed that the cell performance was limited by the anodic overpotential, which is caused mainly by a concentration polarization when the anode substrate is thick. The anodic overpotential was reduced obviously as the thickness of anode substrate was decreased. As a result, the performance of the SOFC cell was improved. With a 0.5 mm anode substrate, a SOFC cell produced a power density about 0.19 W/cm 2 at 800 ℃, which was 1.5 times as high as that of the cell with a 1.0 mm thickness anode (0.13 W/cm 2).

Key words: Anode supported, Yttria stabilized zirconia film, Concentration polarization, Solid oxide fuel cell

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