残炭量对燃料电池用碳纤维纸面电阻率的影响  

Effect of residual carbon on surface resistivity of carbon paper in fuel cell

作　　者：郭福田[1,3] 尤欣敏[1,3] 许鑫[1,3] 赵志刚[1,2] 

机构地区：[1]南京工业大学,材料化学工程国家重点实验室,江苏南京210009 [2]江苏省氢能燃料电池工程技术研究中心,江苏南通226600 [3]南京慧宇能源科技有限公司,江苏南京210061

出　　处：《电源技术》2013年第10期1770-1772,共3页Chinese Journal of Power Sources

基　　金：南京工业大学与南京高新技术产业开发区“三创”合作项目(39666008);南京工业大学青年教师学术基金(39707001)

摘　　要：碳纤维纸是制备燃料电池气体扩散层的关键材料之一,碳纤维纸的电阻率对燃料电池的性能有重要影响,采用湿法抄纸方法并在1 500℃下进行碳化处理,制备出碳纤维纸,研究了低温碳化制备碳纤维纸的残炭含量与碳纤维纸厚度和面电阻率的关系,并分析了碳纤维面电阻率-(残炭质量/碳纤维质量)曲线出现峰谷的原因。The carbon fiber paper is one of the key materials for the preparation of fuel cell gas diffusion layer; the resistivity of the carbon fiber paper has a major impact on fuel cell performance. In this paper, carbon fiber paper was prepared by using a wet paper-making method and carbonization at 1 500 C. The dependence of the surface resistivity and the thickness of the carbon fiber paper on carbon residue content were studied. A non-linear relationship was observed and discussed.

关 键 词：气体扩散层 碳纤维纸 面电阻率 

分 类 号：TM911.4[电气工程—电力电子与电力传动]