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PEM燃料电池迷宫流场双极板的电化学性能研究
Electrochemical performance study on PEM fuel cell with the cathode maze flow-field bipolar plate
投稿时间:2017-10-31  修订日期:2018-01-15
DOI:
中文关键词:  质子交换膜燃料电池  迷宫流场  双极板  数值分析  实验验证
英文关键词:proton exchange membrane fuel cells  maze flow-field  bipolar plate  numerical analysis  experimental verification
基金项目:
作者单位E-mail
姚国军 中国石油股份有限公司金陵分公司 yaogj.jlsh@sinopec.com;157716019@qq.com 
沈翔 东南大学仪器科学与工程学院 shenxiang91@163.com 
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中文摘要:
      双极板流场结构对质子交换膜(Proton Exchange Membrane,PEM)燃料电池的电化学性能至关重要。本文基于双极板的工作原理和有限元分析(Finite Element Analysis,FEA)理论,设计了一种用于PEM燃料电池的新型迷宫流场结构双极板,并建立包括质子交换膜、催化层、气体扩散层、迷宫流场结构双极板和流道在内的完整PEM燃料电池的三维模型并进行数值分析,研究具有该迷宫流道结构双极板PEM燃料电池的电化学性能。此外,本文还制备了具有该迷宫结构的石墨双极板试样并进行电化学性能实验。研究结果表明,在保持PEM燃料电池其他参数一致时,具有迷宫流场双极板的PEM燃料电池具有较大的功率密度,其值为520.283mA/ cm2,实验结果与模拟结果一致,实验很好地验证了数值模拟的可靠性。
英文摘要:
      The bipolar plate flow-field structure is critical to the electrochemical performance of the proton exchange membrane (PEM) fuel cells. In this paper, based on the working principle of bipolar plates and finite element analysis (FEA) results, a new type of maze flow-field structure bipolar plate used in PEM fuel cell was proposed. A three-dimensional numerical model of PEM fuel cell with PEM, catalytic layer, gas diffusion layer, maze flow-field structure bipolar plate and flow channel was successfully established. And finite element analysis was conducted to investigated the electrochemical performance of PEM fuel cell with cathode maze flow-filed structure bipolar plate. In addition, the maze flow-field bipolar plate sample with optimal simulated structure was prepared to carry out experimental research. The aim of the study is to verify the FEA results. The simulated results show that as all other parameters of the PEM fuel cell were kept constant, the PEM fuel cell with maze flow-field bipolar plate possessed maximum power density. The maximum power density was 520.283 mA/cm2. The experimental results are in good agreement with the finite element method (FEM) results, which verified the reliability of numerical simulation.
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