Electrochemical investigations of Al-carbon hybrid bipolar plate materials for polymer electrolyte fuel cells

Dongzhu Yin, Takashi Itoh, Kazumasa Toki, Atsuo Kasuya, Muneyoshi Yamada, Tatsuo Uchida

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We have investigated new Al-carbon bipolar plate materials for a polymer electrolyte fuel cell (PEFC). Recently, many developments for bipolar plate materials have been founded in PEFC studies. More improvements are required in advancements for low corrosion rate, high conductivity and reduced cost. We propose a new concept for bipolar plate materials, specifically Al-carbon hybrid materials. This hybrid includes thin film carbon technology and ordered interfacial technology. The Al-carbon hybrid materials proposed in this paper have low corrosion rate, high conductivity and low cost. We present the electrochemical and physical properties of Al-carbon hybrid bipolar plate materials for PEFC. The corrosion behavior of Al-carbon hybrid materials was investigated using the Tafel-extrapolation method and inductively coupled plasma spectrometry (TCP). In spite of local battery-effect reactions occurring within some Al alloy materials, the proposed Al-carbon hybrid bipolar plate materials have good performance for corrosion resistance and conductivity.

Original languageEnglish
Pages (from-to)187-189
Number of pages3
JournalElectrochemistry
Volume75
Issue number2
DOIs
Publication statusPublished - 2007 Feb

Keywords

  • Al alloy
  • Al-carbon hybrid material
  • Bipolar plate
  • PEFC

ASJC Scopus subject areas

  • Electrochemistry

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