Preparation and properties of thin epoxy/compressed expanded graphite composite bipolar plates for proton exchange membrane fuel cells

	Preparation and properties of thin epoxy/compressed expanded graphite composite bipolar plates for proton exchange membrane fuel cells
	Du, Chao 2,3; Ming, Pingwen 1; Hou, Ming 2; Fu, Jie 2,3; Shen, Qiang 2,3; Liang, Dong 2,3; Fu, Yunfeng 1; Luo, Xiaokuan 1; Shao, Zhigang 2; Yi, Baolian 2
刊名	journal of power sources
	2010-02-01
卷号	195 期号:3 页码:794-800
关键词	Expanded graphite Compressed expanded graphite sheets Bipolar plate Proton exchange membrane fuel cells
通讯作者	明平文
产权排序	1;1
英文摘要	although the composite bipolar plates prepared by the method of the vacuum resin impregnation in compressed expanded graphite (ceg) sheets have been applied in the kw-class stacks, there have been few investigations of the preparation and properties of them so far. in this research, the influences of the microstructure on the physical properties of the thin epoxy/ceg composites (the thickness is 1 mm) are investigated for the first time and the optimum preparation conditions are obtained. results demonstrated that the mechanical property and the impermeability of the composites increases evidently with the resin content changing from 4% to 30%, while the electrical properties keep nearly constant. it can be attributed to the continuous expanded graphite (ec) conductive network of the raw ceg sheet. the epoxy (30 wt.%)/ceg composite is shown to be the optimum composite, displaying in-plane conductivity of 119.8 s cm(-1), through-plane resistance of 17.13 m omega cm(2), density of 1.95 g cm(-3), gas permeability of 1.94 x 10(-6) cm(3) cm(-2) s(-1) and flexural strength of 45.8 mpa. the alcohol scrubbing is the optimum method of surface post-processing. the performance of a single cell with the optimum composite bipolar plates is tested and demonstrated to be outstanding. above all, the composite prepared by resin vacuum impregnation in the ceg sheet is a promising candidate for bipolar plate materials in pemfcs. (c) 2009 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; energy & fuels
研究领域[WOS]	electrochemistry ; energy & fuels
关键词[WOS]	aromatic polydisulfide/expanded graphite ; nanocomposites
收录类别	SCI
原文出处	false
语种	英语
WOS记录号	WOS:000271171900015
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/102999]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Sunrise Power Co Ltd, Dalian 116025, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Res Grp, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Du, Chao,Ming, Pingwen,Hou, Ming,et al. Preparation and properties of thin epoxy/compressed expanded graphite composite bipolar plates for proton exchange membrane fuel cells[J]. journal of power sources,2010,195(3):794-800.
APA	Du, Chao.,Ming, Pingwen.,Hou, Ming.,Fu, Jie.,Shen, Qiang.,...&Yi, Baolian.(2010).Preparation and properties of thin epoxy/compressed expanded graphite composite bipolar plates for proton exchange membrane fuel cells.journal of power sources,195(3),794-800.
MLA	Du, Chao,et al."Preparation and properties of thin epoxy/compressed expanded graphite composite bipolar plates for proton exchange membrane fuel cells".journal of power sources 195.3(2010):794-800.