CAJ | 학술논문

采用石墨化PAN系炭纤维布制备了高分子电解质燃料电池气体扩散层.通过电学实验、X-ray绕射与元素分析考察了所制气体扩散层的性能.结果表明:随热处理温度的升高,气体扩散层的电阻率降低,L.增加,d002减小.高温处理后的炭纤维布作为高分子电解质燃料电池气体扩散层显示了较高的电池效能.
채용석묵화PAN계탄섬유포제비료고분자전해질연료전지기체확산층.통과전학실험、X-ray요사여원소분석고찰료소제기체확산층적성능.결과표명:수열처리온도적승고,기체확산층적전조솔강저,L.증가,d002감소.고온처리후적탄섬유포작위고분자전해질연료전지기체확산층현시료교고적전지효능.
Gas diffusion layers (GDL) in proton exchange membrane fuel cells were prepared by graphitization of polyacrylonitrile carbon fiber cloths, to enhance their properties, such as, electrical conductivity, which was examined by electrical tests, X-ray diffraction, and elemental analysis. The results indicated that electrical resistivity declined, Lc increased, and d002 decreased with an increase in the heat-treatment temperature. Carbon fiber cloths with a higher beattreatment temperature performed better as GDLs in terms of current density and power density.