Electrical and corrosion properties of stainless steel bipolar plates coated with a conduction polymer composite

Yang Bok Lee; Dae Soon Lim

doi:10.1016/j.cap.2009.11.007

Electrical and corrosion properties of stainless steel bipolar plates coated with a conduction polymer composite

Yang Bok Lee, Dae Soon Lim

Honorary professors

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Metal bipolar plates fabricated from stainless steel have many advantages, such as low contact resistance, good mechanical properties, easy manufacturing, and low cost. However, they suffer from corrosion due to the acid created in the proton exchange membrane (PEM) fuel cell environment. In this research, a polymer composite of polyamide-imide (PAI) filled with carbon black (CB) was coated onto stainless steel substrates. The effects of the carbon black content on the corrosion resistance and the electrical contact resistance were investigated. The contact resistance of the polymer composite-coated stainless steel was found to increase upon increasing the carbon black content. However, increasing the carbon black content also decreased the corrosion resistance. From the results obtained, the optimum carbon black content was determined.

Original language	English
Pages (from-to)	S18-S21
Journal	Current Applied Physics
Volume	10
Issue number	2 SUPPL.
DOIs	https://doi.org/10.1016/j.cap.2009.11.007
Publication status	Published - 2010 Mar

Keywords

Bipolar plate
Carbon
Composite
PEM fuel cells
Polyamide-imide

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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abstract = "Metal bipolar plates fabricated from stainless steel have many advantages, such as low contact resistance, good mechanical properties, easy manufacturing, and low cost. However, they suffer from corrosion due to the acid created in the proton exchange membrane (PEM) fuel cell environment. In this research, a polymer composite of polyamide-imide (PAI) filled with carbon black (CB) was coated onto stainless steel substrates. The effects of the carbon black content on the corrosion resistance and the electrical contact resistance were investigated. The contact resistance of the polymer composite-coated stainless steel was found to increase upon increasing the carbon black content. However, increasing the carbon black content also decreased the corrosion resistance. From the results obtained, the optimum carbon black content was determined.",

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AU - Lim, Dae Soon

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AB - Metal bipolar plates fabricated from stainless steel have many advantages, such as low contact resistance, good mechanical properties, easy manufacturing, and low cost. However, they suffer from corrosion due to the acid created in the proton exchange membrane (PEM) fuel cell environment. In this research, a polymer composite of polyamide-imide (PAI) filled with carbon black (CB) was coated onto stainless steel substrates. The effects of the carbon black content on the corrosion resistance and the electrical contact resistance were investigated. The contact resistance of the polymer composite-coated stainless steel was found to increase upon increasing the carbon black content. However, increasing the carbon black content also decreased the corrosion resistance. From the results obtained, the optimum carbon black content was determined.

KW - Bipolar plate

KW - Carbon

KW - Composite

KW - PEM fuel cells

KW - Polyamide-imide

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