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Development of carbon fabric/graphite hybrid bipolar plate for PEMFC

机译：PEMFC碳纤维/石墨混合双极板的研制

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摘要

The bipolar plates have several functions in Proton Exchange Membrane Fuel Cell (PEMFC); separating flow channels between gases, connecting electrical paths between cells in series and providing structural supports for the stack. Although the carbon fiber epoxy composite bipolar plates recently developed, have high specific stiffness and strength, they have relatively high electrical resistance compared to graphite bipolar plates due to their high surface electrical contact resistance, which requires additional surface treatment such as graphite layer coating. In this research, a new manufacturing method for the carbon fabric/graphite hybrid bipolar plate which consists of two carbon fiber fabrics and an expanded graphite foil liner between them, has been developed in order to increase the productivity of PEMFC and reduce its manufacturing cost by exposing bare carbon fabrics to decrease the surface electrical contact resistance of bipolar plate. Phenolic resin was chosen rather than epoxy resin for the matrix material to decrease both material cost and manufacturing time, and the optimum areal density of phenolic resin was determined experimentally. Also the corrosion resistance, electrical contact resistance and mechanical properties of the hybrid bipolar plates were measured.
机译：双极板在质子交换膜燃料电池（PEMFC）中具有多种功能。分隔气体之间的流动通道，串联连接电池之间的电气路径，并为电池组提供结构支撑。尽管最近开发的碳纤维环氧复合材料双极板具有较高的比刚度和强度，但与石墨双极板相比，它们具有较高的电阻，这是因为它们的高表面电接触电阻，需要额外的表面处理，例如石墨层涂层。在这项研究中，开发了一种新的碳纤维/石墨混合双极板的制造方法，该方法由两种碳纤维织物和它们之间的膨胀石墨箔衬里组成，以提高PEMFC的生产率并降低制造成本。暴露裸露的碳纤维织物以降低双极板的表面电接触电阻。选择酚醛树脂而不是环氧树脂作为基质材料，以降低材料成本和制造时间，并通过实验确定了酚醛树脂的最佳面密度。还测量了混合双极板的耐腐蚀性，电接触电阻和机械性能。

著录项

  • 来源
    《Composite Structures》 |2013年第4期|103-110|共8页
  • 作者

    Ki Hyun Kim; Jun Woo Lim; Minkook Kim; Dai Gil Lee;

  • 作者单位

    School of Mechanical, Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon-shi 305-701, Republic of Korea;

    School of Mechanical, Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon-shi 305-701, Republic of Korea;

    School of Mechanical, Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon-shi 305-701, Republic of Korea;

    School of Mechanical, Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology, ME3221, 291 Daehak-ro, Yuseong-gu, Daejeon-shi 305-701, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    PEM fuel cell; bipolar plate; carbon composite; carbon fabric; phenolic resin; graphite liner;

    机译：PEM燃料电池;双极板碳复合材料碳纤维酚醛树脂;石墨内胆;

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