燃料电池的复合质子交换膜研究——不同多孔聚四氟乙烯底膜对复合膜性能的影响  

Study on composite proton-exchange membrane for fuel cell --Effect of various polytetrafluoro ethylene porous substrate membrane on performance of composite membrane

作　　者：刘富强[1] 衣宝廉[1] 邢丹敏[1] 于景荣[1] 张华民[1] 

机构地区：[1]中国科学院大连化学物理研究所燃料电池工程中心,辽宁大连116023

出　　处：《电源技术》2002年第B07期210-213,共4页Chinese Journal of Power Sources

摘　　要：把Nafion树脂浸入到不同的聚四氟乙烯 (PTFE)多孔膜孔中 ,制成Nafion/PTFE复合膜用于质子交换膜燃料电池(PEMFC)。从SEM照片上看 ,Nafion树脂已均匀地分布在PTFE多孔膜中 ,而且已有一层均匀的薄Nafion膜存在于PTFE多孔膜表面。在 80℃ ,pH2 /pO2 为 0 .2MPa/0 .2MPa条件下 ,对比基于不同PTFE膜的复合膜组装的电池性能 ,结果表明 ,PTFE膜中孔的体积越大 。The Nafion/PTFE composite membrane for proton exchange membrane fuel cell(PEMFC) was synthesized by impregnating Nafion resin into pores of various PTFE porous substrate membranes. According to the SEM photomicrographs, the Nafion resin is dispersed in the porous PTFE membrane evenly, and a homogeneous thin Nafion film is on its surface. The performance of fuel cells using the composite membrane based on various PTFE membrane were compared at 80 ℃ with the p H 2 /p O 2 of 0.2 MPa/0.2 MPa.The results show that larger the pore volume in PTFE membrane is, better the performance of PEMFC assembled with the composite membrane is.

关 键 词：燃料电池 复合质子交换膜 多孔聚四氟乙烯底膜 复合膜性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动]