Coating of stainless steel and titanium bipolar plates for anticorrosion in PEMFC: A review

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55 Citations (Scopus)

Abstract

Anticorrosion coating for stainless steel (SS) and titanium bipolar plates were evaluated to improve the corrosion resistance and electrical conductivity in PEMFC. The PEMFC offers clean and environmentally friendly usage in electrical power systems. The bipolar plates contribute 60%-80% of the total components of PEMFC stack with electrical conductivity >100 S cm-1. Therefore, high conductivity and corrosion resistance are observed for long-term operations in PEMFC. Recent works has developed the cost-effective and feasible alternative materials to replace graphite bipolar plates. Metallic materials, such as SS and titanium, possess good electrical conductivity but poor corrosion resistance. Coating of SS and titanium bipolar plates can improve the corrosion resistance of metallic bipolar plates. Excellent performance of bipolar plates was recorded by using NbC coating for stainless steel materials. The ICR value using plasma surface alloying method was 8.47 mΩ cm2 with a low current density (Icorr) between 0.051 and 0.058 μA cm-2. The criteria for both current densities (<1 μA cm-2) and electrical conductivity (<10 mΩ cm2) met the DOE's 2020 technical targets. In addition, conventional air brush method can be used for fabricating multilayer coatings onto substrates because it is self-cleaning, low cost and offers high volume and large area production. Vapor deposition method, a highly advanced coating technology using PVD, suitable for coating bipolar plates because it is environmentally friendly and can be used in high temperatures, producing materials with good impact strength and excellent abrasion resistance. PEMFC cost is still too high for large scale commercialization, which is the cost of raw material and processing to allow fabrication of thinner plates contributes substantially to the total PEMFC cost. Some future works on fuel cell anticorrosion research with reasonable coating method is suggested to reduce the cost in order to facilitate the move toward commercialization especially for SS and titanium bipolar plates.

Original languageEnglish
JournalInternational Journal of Hydrogen Energy
DOIs
Publication statusAccepted/In press - 20 Oct 2015

Fingerprint

Proton exchange membrane fuel cells (PEMFC)
stainless steels
Stainless steel
titanium
Titanium
coatings
Coatings
Corrosion resistance
corrosion resistance
costs
Costs
electrical resistivity
commercialization
Current density
coating
Vapor deposition
current density
abrasion resistance
refractory materials
impact strength

Keywords

  • Bipolar plates
  • Coating
  • PEMFC
  • Stainless steel
  • Titanium

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

@article{e58210ea3b6f4eab8a36b74981767838,
title = "Coating of stainless steel and titanium bipolar plates for anticorrosion in PEMFC: A review",
abstract = "Anticorrosion coating for stainless steel (SS) and titanium bipolar plates were evaluated to improve the corrosion resistance and electrical conductivity in PEMFC. The PEMFC offers clean and environmentally friendly usage in electrical power systems. The bipolar plates contribute 60{\%}-80{\%} of the total components of PEMFC stack with electrical conductivity >100 S cm-1. Therefore, high conductivity and corrosion resistance are observed for long-term operations in PEMFC. Recent works has developed the cost-effective and feasible alternative materials to replace graphite bipolar plates. Metallic materials, such as SS and titanium, possess good electrical conductivity but poor corrosion resistance. Coating of SS and titanium bipolar plates can improve the corrosion resistance of metallic bipolar plates. Excellent performance of bipolar plates was recorded by using NbC coating for stainless steel materials. The ICR value using plasma surface alloying method was 8.47 mΩ cm2 with a low current density (Icorr) between 0.051 and 0.058 μA cm-2. The criteria for both current densities (<1 μA cm-2) and electrical conductivity (<10 mΩ cm2) met the DOE's 2020 technical targets. In addition, conventional air brush method can be used for fabricating multilayer coatings onto substrates because it is self-cleaning, low cost and offers high volume and large area production. Vapor deposition method, a highly advanced coating technology using PVD, suitable for coating bipolar plates because it is environmentally friendly and can be used in high temperatures, producing materials with good impact strength and excellent abrasion resistance. PEMFC cost is still too high for large scale commercialization, which is the cost of raw material and processing to allow fabrication of thinner plates contributes substantially to the total PEMFC cost. Some future works on fuel cell anticorrosion research with reasonable coating method is suggested to reduce the cost in order to facilitate the move toward commercialization especially for SS and titanium bipolar plates.",
keywords = "Bipolar plates, Coating, PEMFC, Stainless steel, Titanium",
author = "Asri, {Nur Fawwaz} and Teuku Husaini and Sulong, {Abu Bakar} and Edy Herianto and {Wan Daud}, {Wan Ramli}",
year = "2015",
month = "10",
day = "20",
doi = "10.1016/j.ijhydene.2016.06.241",
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journal = "International Journal of Hydrogen Energy",
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T1 - Coating of stainless steel and titanium bipolar plates for anticorrosion in PEMFC

T2 - A review

AU - Asri, Nur Fawwaz

AU - Husaini, Teuku

AU - Sulong, Abu Bakar

AU - Herianto, Edy

AU - Wan Daud, Wan Ramli

PY - 2015/10/20

Y1 - 2015/10/20

N2 - Anticorrosion coating for stainless steel (SS) and titanium bipolar plates were evaluated to improve the corrosion resistance and electrical conductivity in PEMFC. The PEMFC offers clean and environmentally friendly usage in electrical power systems. The bipolar plates contribute 60%-80% of the total components of PEMFC stack with electrical conductivity >100 S cm-1. Therefore, high conductivity and corrosion resistance are observed for long-term operations in PEMFC. Recent works has developed the cost-effective and feasible alternative materials to replace graphite bipolar plates. Metallic materials, such as SS and titanium, possess good electrical conductivity but poor corrosion resistance. Coating of SS and titanium bipolar plates can improve the corrosion resistance of metallic bipolar plates. Excellent performance of bipolar plates was recorded by using NbC coating for stainless steel materials. The ICR value using plasma surface alloying method was 8.47 mΩ cm2 with a low current density (Icorr) between 0.051 and 0.058 μA cm-2. The criteria for both current densities (<1 μA cm-2) and electrical conductivity (<10 mΩ cm2) met the DOE's 2020 technical targets. In addition, conventional air brush method can be used for fabricating multilayer coatings onto substrates because it is self-cleaning, low cost and offers high volume and large area production. Vapor deposition method, a highly advanced coating technology using PVD, suitable for coating bipolar plates because it is environmentally friendly and can be used in high temperatures, producing materials with good impact strength and excellent abrasion resistance. PEMFC cost is still too high for large scale commercialization, which is the cost of raw material and processing to allow fabrication of thinner plates contributes substantially to the total PEMFC cost. Some future works on fuel cell anticorrosion research with reasonable coating method is suggested to reduce the cost in order to facilitate the move toward commercialization especially for SS and titanium bipolar plates.

AB - Anticorrosion coating for stainless steel (SS) and titanium bipolar plates were evaluated to improve the corrosion resistance and electrical conductivity in PEMFC. The PEMFC offers clean and environmentally friendly usage in electrical power systems. The bipolar plates contribute 60%-80% of the total components of PEMFC stack with electrical conductivity >100 S cm-1. Therefore, high conductivity and corrosion resistance are observed for long-term operations in PEMFC. Recent works has developed the cost-effective and feasible alternative materials to replace graphite bipolar plates. Metallic materials, such as SS and titanium, possess good electrical conductivity but poor corrosion resistance. Coating of SS and titanium bipolar plates can improve the corrosion resistance of metallic bipolar plates. Excellent performance of bipolar plates was recorded by using NbC coating for stainless steel materials. The ICR value using plasma surface alloying method was 8.47 mΩ cm2 with a low current density (Icorr) between 0.051 and 0.058 μA cm-2. The criteria for both current densities (<1 μA cm-2) and electrical conductivity (<10 mΩ cm2) met the DOE's 2020 technical targets. In addition, conventional air brush method can be used for fabricating multilayer coatings onto substrates because it is self-cleaning, low cost and offers high volume and large area production. Vapor deposition method, a highly advanced coating technology using PVD, suitable for coating bipolar plates because it is environmentally friendly and can be used in high temperatures, producing materials with good impact strength and excellent abrasion resistance. PEMFC cost is still too high for large scale commercialization, which is the cost of raw material and processing to allow fabrication of thinner plates contributes substantially to the total PEMFC cost. Some future works on fuel cell anticorrosion research with reasonable coating method is suggested to reduce the cost in order to facilitate the move toward commercialization especially for SS and titanium bipolar plates.

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KW - Stainless steel

KW - Titanium

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