华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (11): 76-80.

• 化学化工 • 上一篇    下一篇

固体氧化物燃料电池的料浆喷涂法制备及性能

丁姣 郭为民 刘江   

  1. 华南理工大学 化学科学学院,广东 广州 510640
  • 收稿日期:2007-07-11 出版日期:2007-11-25 发布日期:2007-11-25
  • 通信作者: 丁姣(1982-) ,女,博士生,主要从事固体氧化物燃料电池的研究. E-mail:chi.ding@163.com
  • 作者简介:丁姣(1982-) ,女,博士生,主要从事固体氧化物燃料电池的研究.
  • 基金资助:

    广东省科技计划项目(2005B5010100'7)

Fabrication and Property of SOFC via Colloidal Spray Coating

Ding Jiao  Guo Wei-min  Liu Jiang   

  1. School of Chemical Science , South China Univ. of Tech. , Guangzhou 510640 , Guangdong,China
  • Received:2007-07-11 Online:2007-11-25 Published:2007-11-25
  • Contact: 丁姣(1982-) ,女,博士生,主要从事固体氧化物燃料电池的研究. E-mail:chi.ding@163.com
  • About author:丁姣(1982-) ,女,博士生,主要从事固体氧化物燃料电池的研究.
  • Supported by:

    广东省科技计划项目(2005B5010100'7)

摘要: 采用料浆喷涂法在NiO/YSZ 阳极支撑体上制备了YSZ 电解质膜并将其制成固体氧化物燃料电池(SOFC) 单电池,并采用CHI 电化学工作站和扫描电镜(SEM) 对其伏安特性、阻抗谱和电池横断面的微观结构进行了测试和研究.结果表明:电池正常工作,开路电压随温度的升高而下降,从500℃的1. 054 V 降到800℃的0.963 V ,800℃:的最大功率密度为57 x 10 -3 W/cm2 ; 电池在较低的工作温度下电阻损失主要来自界面电阻,随温度的升高界面电阻明显降低;电解质膜的厚度约为30μm ,阳极微观结构不够均匀,这是造成欧姆电阻的主要原因.

关键词: 燃料电池, 固体氧化物, 料浆喷涂, 阳极支撑

Abstract:

In this paper, an YSZ electrolyte layer was spray-coated on NiO/YSZ anode suhstrate , and the corresponding single cell of solid oxide fuel cell (SOFC) was assemhled and tested. Then , CHI electrochemical station and SEM were used to test and analyze the voltage-current characteristics, the impedance spectra and the section microstructure of the cell. The test results indicate that the cell works and the open-circuit voltage (OCV) .decreases with the increase of the temperature. Concretely , when the temperature increases from 500℃ to 800℃, the OCV decreases from 1. 054 V to 0. 963 V and the maximum power density reaches 57 x 10-3W/cm2 at 800 ℃. Moreover, it is found that the interface resistance dominates at low temperature and markedly decreases when the temperature increases , and that the Ohmic resistance of SOFC mainly results from the YSZ electrolyte layer in ahout 30μm thickness and the inhomogeneous anode microstructure.

Key words: fuel cell, solid oxide, colloidal spray coating, anode-supporting