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A lifetime prediction model for coated metallic bipolar plates in proton exchange membrane fuel cells

机译：质子交换膜燃料电池中涂层金属双极板的寿命预测模型

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摘要

Metallic bipolar plates are considered to be cost-effective and feasible alternative to graphite bipolar plates for high power density of Proton Exchange Membrane Fuel Cells. However, the lifetime of metallic bipolar plates is determined by surface coating and the durability evaluation is extremely costly and time-consuming. It is urgent to establish a method for the lifetime evaluation and quick development of coated metallic bipolar plates. In this study, a lifetime prediction model for coated metallic bipolar plates is proposed and verified. Firstly, the model is established based on the electrochemical reaction kinetics of Proton Exchange Membrane Fuel Cells. Secondly, the operating conditions for automotive application are equivalent to the ex-situ accelerated tests for the coated metallic bipolar plates and the model is formulated based on the ex-situ accelerated tests. Finally, 2500 h in-situ test of stacks assembled with carbon-coated metallic bipolar plates is carried out to verify the accuracy of the model and the relative prediction error is 8.68%. The universality of the model has been evaluated by applying it to gold-coated metallic bipolar plates, which were tested in-situ in stacks up to 3000 h. This study is beneficial to the quick evaluation of lifetime for coated metallic bipolar plates and provides a theoretical guidance for the rapid development of coatings.
机译：对于质子交换膜燃料电池的高功率密度而言，金属双极板被认为是经济高效且可行的石墨双极板的替代品。但是，金属双极板的寿命由表面涂层决定，耐久性评估非常昂贵且耗时。迫切需要建立一种方法来评估涂层金属双极板的寿命并快速开发。在这项研究中，提出并验证了涂层金属双极板的寿命预测模型。首先，基于质子交换膜燃料电池的电化学反应动力学建立了模型。其次，汽车应用的工作条件等同于涂层金属双极板的异位加速试验，并基于异位加速试验建立模型。最后，对碳涂层金属双极板组装的电池组进行了2500 h的原位测试，以验证模型的准确性，相对预测误差为8.68％。该模型的通用性已通过将其应用于镀金的金属双极板进行了评估，该板在堆叠中进行了长达3000小时的现场测试。这项研究有利于快速评估带涂层金属双极板的寿命，并为涂层的快速开发提供理论指导。

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  • 来源
    《Energy Conversion & Management》 |2019年第3期|65-72|共8页
  • 作者

    Yi Peiyun; Li Xiaobo; Yao Li; Fan Fan; Peng Linfa; Lai Xinmin;

  • 作者单位

    Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China;

    SAIL Motor Corp Ltd, Shanghai 200041, Peoples R China;

    SAIL Motor Corp Ltd, Shanghai 200041, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China|Shanghai Jiao Tong Univ, Shanghai Key Lab Digital Manufacture Thin Walled, Shanghai 200240, Peoples R China;

  • 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

    Lifetime; Prediction model; Metallic bipolar plates; Carbon coating; Proton exchange membrane fuel cells;

    机译：寿命;预测模型;金属双极板;碳涂层;质子交换膜燃料电池;

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