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首页> 外文期刊>日本マリンエンジニアリング学会誌 >Impedance Spectroscopy to Prevent Performance Degradation due to Sea Salt for Marine Polymer Electrolyte Fuel Cells
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Impedance Spectroscopy to Prevent Performance Degradation due to Sea Salt for Marine Polymer Electrolyte Fuel Cells

机译：阻抗光谱学，防止由于海盐为海洋聚合物电解质燃料电池的性能降解

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摘要

The application of polymer electrolyte fuel cells (PEFCs) for marine vessels will be an effective means of reducing the environmental impact and solving energy crisis problems. The diagnosis of abnormal operational conditions is an important aspect of improving the reliability and durability of marine PEFCs, and helps to ensure long-term safe and stable operation. Electrochemical impedance spectroscopy (EIS) is a technique suitable for the real-time diagnosis of operational PEFCs. EIS analyses are performed using an equivalent circuit model consisting of several resistances and capacitances, associated with ohmic, activation and concentration overpotentials. The present work investigates the effects of abnormal variations in the cell temperature as well as the flow rate and relative humidity values of supplied gases on the cell resistance and capacitance values using EIS analysis. The detection of sea salt (NaCl) contamination in the cathode air stream is also evaluated by injecting a NaCl solution into the cathode inlet gas.
机译：用于船舶的聚合物电解质燃料电池（PEFC）的应用将是降低环境影响和解决能源危机问题的有效手段。异常运营条件的诊断是提高海洋PEFCs的可靠性和耐久性的重要方面，并有助于确保长期安全和稳定运行。电化学阻抗光谱（EIS）是一种适用于运行PEFC的实时诊断的技术。 EIS分析是使用由多种电阻和电容组成的等效电路模型进行，与欧姆，激活和浓度过电相关。本作者研究了使用EIS分析对电池电阻和电容值对电池电阻和电容值的流速和相对湿度值的异常变化的影响。还通过将NaCl溶液注入阴极入口气体中来评估阴极空气流中的海盐（NaCl）污染的检测。

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