钒电池集流体用聚四氟乙烯导电塑料的制备与性能  

Preparation and Performance of Polytetrafluoroethylene Conducting Plastic on Vanadium Redox Flow Battery' Collector

作　　者：陈茂斌[1,2] 张胜涛[1] 李晓兵[2] 刘联[2] 刘效疆[2] 孟凡明[2] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044 [2]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《高分子材料科学与工程》2009年第6期121-124,共4页Polymer Materials Science & Engineering

基　　金：中国工程物理研究院军民两用技术(JM200703)

摘　　要：报道了制备钒电池集流体用聚四氟乙烯导电塑料的制备方法,研究了不同种类和不同用量的炭系导电填料对聚四氟乙烯导电塑料性能的影响,探讨了导电填料层积复合法对样品的性能影响。研究结果表明,石墨填料是聚四氟乙烯导电塑料中较理想的导电填料;用量77%的石墨能够在样品中形成完整的导电网络,相应的体积电阻率为0.070Ω.cm,拉伸强度12MPa;层积复合法能够大幅度地提高样品的导电性;高温烧结工序能够提高样品的导电性能;样品具有良好的防渗漏、耐强酸腐蚀和电化学腐蚀性能;该材料可用作钒电池的集流体,有望在钒电池中得到应用。The method of preparation polytetrafluoreoethylene conductive plastic was reported. The relation of polytetrafluoroethylene plastics performance with different type of carbon class electric conduction filler and different dosage was investigated. The interlayer of conductive filler was investigated, and the performance of the PTFE conductive plastic was studied. The PTFE sample with 77 % （mass percent） graphite dosage can form the integrated electric conductive network. The volume resistivity of the PTFE sample is 0.070Ω·cm and the tensile strength of is 12 MPa. The interlayer method and sintered process can enhance the electric conductivity of the PTFE plastics. The results of conductive plastic indicate sample can satisfy current collector performance requirement of vanadium redox flow battery.

关 键 词：导电塑料 集流体 体积电阻率 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业]