Transient Response Analysis of Polymer Electrolyte Fuel Cell Considering Equivalent Electric Circuit and Mass Conservation

Kohei Ito, Nobuhito Miyauchi, Kazuo Onda, Hironori Koori, Kohei Ito

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Since PEFC (Polymer Electrolyte Fuel Cell) can produce electricity at high power density with a simple stack constitution, PEFC is expected to be applied to electric vehicles and to distributed power sources. In these applications, PEFC may be operated at a wide range of load and may have frequent starts and stops. Therefore it is important to elucidate the transient characteristics of PEFC. In this study, we made a mathematical model to predict the transient behavior of PEFC, considering an equivalent electric circuit and a mass conservation equation. Important physical properties, such as proton conductivity and double-layer capacitance of polymer electrolyte membrane were measured to be incorporated into the model. By using the model, we calculated the response of cell potential to a rapid change of load current, and compared the numerical calculation with the experimental result. After the rapid change of load current, the cell potential varies in 10−1 s accompanied by the charge and discharge of the electric double layer capacitance, and then it changes in 101 s by the re-distribution of water in the polymer electrolyte membrane.

Original languageEnglish
Pages (from-to)485-495
Number of pages11
JournalIEEJ Transactions on Power and Energy
Volume124
Issue number3
DOIs
Publication statusPublished - Jan 1 2004

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All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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