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首页> 外文期刊>Journal of power sources >Experimental investigation of current distributions in a direct methanol fuel cell with various gas diffusion layers and Nafion® membranes
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Experimental investigation of current distributions in a direct methanol fuel cell with various gas diffusion layers and Nafion® membranes

机译：具有各种气体扩散层和Nafion®膜的直接甲醇燃料电池中电流分布的实验研究

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摘要

The influences of the gas diffusion layer (CDL) properties on the current distributions of a direct methanol fuel cell are investigated. Cathode GDLs with different hydrophobicity/hydrophilicity, air permeability, microporous layer (MPL), thickness, and texture properties are examined. Among the GDLs examined, a thin hydrophobic GDL with an MPL has the most homogeneous current distribution, which is primarily ascribed to the better water management capabilities of the cathode GDL properties. The differences in the current distribution among the different GDLs are more apparent when the air flow rate and loaded current are lower. The effect of the membrane thickness on the current distributions is also investigated. Among the membranes examined, Nafion® 112 has different current distributions from the others, whereas there is no noticeable difference between the current distributions with Nafion® 115 and Nafion® 117. The current distribution with Nafion® 112 is most affected by the enhanced methanol crossover and the high mixed potential.
机译：研究了气体扩散层（CDL）性能对直接甲醇燃料电池电流分布的影响。检查具有不同疏水性/亲水性，透气性，微孔层（MPL），厚度和质地特性的阴极GDL。在所检查的GDL中，具有MPL的薄疏水GDL具有最均匀的电流分布，这主要归因于阴极GDL特性具有更好的水管理能力。当空气流量和负载电流较低时，不同GDL之间的电流分布差异会更加明显。还研究了膜厚度对电流分布的影响。在所检查的膜中，Nafion®112的电流分布与其他膜不同，而使用Nafion®115和Nafion®117的电流分布之间没有明显差异。使用Nafion®112的电流分布受增强的甲醇交叉影响最大和高混合潜力。

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  • 来源
    《Journal of power sources》 |2011年第15期|p.6110-6117|共8页
  • 作者

    Sang-Min Park; Sang-Kyung Kim; Seongyop Lim; Doo-Hwanjung; Dong-Hyun Peck; Won Hi Hong;

  • 作者单位

    Fuel Cell Research Center, Korea Institute of Energy Research, 71-2Jang-dong. Yuseong-gu, Daejeon 305-343, Republic of Korea,Department of Chemical and Biomotecular Engineering (BK21 Program), KAIST. 335 Cwahak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;

    Fuel Cell Research Center, Korea Institute of Energy Research, 71-2Jang-dong. Yuseong-gu, Daejeon 305-343, Republic of Korea;

    Fuel Cell Research Center, Korea Institute of Energy Research, 71-2Jang-dong. Yuseong-gu, Daejeon 305-343, Republic of Korea;

    Fuel Cell Research Center, Korea Institute of Energy Research, 71-2Jang-dong. Yuseong-gu, Daejeon 305-343, Republic of Korea;

    Fuel Cell Research Center, Korea Institute of Energy Research, 71-2Jang-dong. Yuseong-gu, Daejeon 305-343, Republic of Korea;

    Department of Chemical and Biomotecular Engineering (BK21 Program), KAIST. 335 Cwahak-ro, Yuseong-gu, Daejeon 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);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    direct methanol fuel cell; current distribution; gas diffusion layer; microporous layer; membrane thickness;

    机译：直接甲醇燃料电池当前分布;气体扩散层;微孔层膜厚;

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