摘要
某些质子交换膜必须在含有水分的条件下才能显示出优异的综合性能。介绍了采用硅酸盐水泥与导电陶瓷Ti3SiC2,通过室温模压的方法制备具有增湿功能的导电复合材料;报道了该复合材料的电导率和含水率,以及借助扫描电镜观察到的微观结构,分析了影响复合材料导电性的因素。实验结果表明:水泥/Ti3SiC复合材料可改进质子交换膜燃料电池双极板的增湿功能,但需2进一步提高其电导率。
Some PEM exhibited its good comprehensive performance only under the wet environment. Silicate cement/ Ti3SiCz conductive composites were preparated by mold pressing in room temperature. Electrical conductivity and content of water were also measured. The effect factors on composite electrical conductivity were investigated. The microstructure of composite was studied by scanning electron microscope（SEM）. The results showed that silicate cement/ Ti3SiC2 conductive composite was able to improve the inner humidification function of the bipolar plate of proton exchange membrane fuel cell（PEMFC）, but its electrical conductivity needs to be more improved.
出处
《电池工业》
CAS
2005年第4期208-211,共4页
Chinese Battery Industry
