Three different types of metallic bipolar plates (commercial stainless steels, Ni-based alloys, and nitride-coated steels) were investigated in terms of their interface contact resistance (ICR) and corrosion resistance in conditions typical of a proton exchange membrane fuel cell environment. The results showed that stainless steels are unsuitable because of the formation of nonconductive oxide that leads to high ICR. Ni-based alloys showed to be prone to corrosion in acidic medium, although they have an ICR comparable to commercially available graphite. Endurance tests carried out on nitride-coated stainless-steel specimens showed a low ICR and very good corrosion resistance of this material.

1.
Gottesfeld
,
S.
, and
Zawodzinski
,
T. A.
, 1997,
Polymer Electrolyte Fuel Cells
,
Wiley-VCH
, New York,
Advances in Electrochemical Science and Engineering
, Vol.
5
, pp.
195
301
.
2.
Mehta
,
V.
, and
Cooper
,
J. S.
, 2003, “
Review and Analysis of PEM Fuel Cell Design and Manufacturing
,”
J. Power Sources
0378-7753,
114
, pp.
32
53
.
3.
Hentall
,
P. L.
,
Lakeman
,
J. B.
,
Mepsted
,
G. O.
,
Adcock
,
P. L.
, and
Moore
,
J. M.
, 1999, “
New Materials for Polymer Electrolyte Membrane Fuel Cell Current Collectors
,”
J. Power Sources
0378-7753,
80
, pp.
235
241
.
4.
Scholta
,
J.
,
Rohland
,
B.
,
Trapp
,
V.
, and
Focken
,
U.
, 1999, “
Investigations on Novel Low-Cost Graphite Composite Bipolar Plates
,”
J. Power Sources
0378-7753,
84
, pp.
231
234
.
5.
Hodgson
,
D. R.
,
May
,
B.
,
Adcock
,
P. I.
, and
Davies
,
D. P.
, 2001, “
New Lightweight Bipolar Plate System for Polymer Electrolyte Membrane Fuel Cells
,”
J. Power Sources
0378-7753,
96
, pp.
233
235
.
6.
Heinzel
,
A.
,
Mahlendorf
,
F.
,
Niemzig
,
O.
, and
Kreuz
,
C.
, 2004, “
Injection Moulded Low Cost Bipolar Plates for PEM Fuel Cells
,”
J. Power Sources
0378-7753,
131
, pp.
35
40
.
7.
Besmann
,
T. M.
,
Klett
,
J. W.
,
Henry
, Jr.,
J. J.
, and
Lara-Curzio
,
E.
, 2000, “
Carbon/Carbon Composite Bipolar Plate for Proton Exchange Membrane Fuel Cells
,”
J. Electrochem. Soc.
0013-4651,
147
, pp.
4083
4086
.
8.
Busick
,
D. N.
, and
Wilson
,
M. S.
, 1998, “
Low-Cost Composite Materials for PEFC Bipolar Plates
,”
Book of Abstracts
, Palm Springs,
Fuel Cell Seminar
, Washington, DC, pp.
632
635
.
9.
Hornung
,
R.
, and
Kappelt
,
G.
, 1998, “
Bipolar Plate Materials Development Using Fe-Based Alloys for Solid Polymer Fuel Cells
,”
J. Power Sources
0378-7753,
72
, pp.
20
21
.
10.
Makkus
,
R. C.
,
Janssen
,
A. H. H.
,
de Brujin
,
F. A.
, and
Mallant
,
R.
, 2000, “
Use of Stainless Steel for Cost Competitive Bipolar Plates in the SPFC
,”
J. Power Sources
0378-7753,
86
, pp.
274
282
.
11.
Davies
,
D. P.
,
Adcock
,
P. L.
,
Turpin
,
M.
, and
Rowen
,
S. J.
, 2000, “
Stainless Steel as a Bipolar Plate Material for Solid Polymer Fuel Cells
,”
J. Power Sources
0378-7753,
86
, pp.
237
242
.
12.
Wang
,
H.
,
Sweikart
,
M. A.
, and
Turner
,
J. A.
, 2003, “
Stainless Steel as Bipolar Plate Material for Polymer Electrolyte Membrane Fuel Cells
,”
J. Power Sources
0378-7753,
115
, pp.
243
251
.
13.
Wang
,
H.
, and
Turner
,
J. A.
, 2004, “
Ferritic Stainless Steels as Bipolar Plate Material for Polymer Electrolyte Membrane Fuel Cells
,”
J. Power Sources
0378-7753,
128
, pp.
193
200
.
14.
Yang
,
L.
,
Meng
,
W. J.
,
Swathirajan
,
S.
,
Harris
,
S. J.
, and
Doll
,
G. L.
, 1997, “
Corrosion Resistant PEM Fuel Cell
,” US Patent No. 5,624,769.
15.
Pozio
,
A.
,
Silva
,
R. F.
,
De Francesco
,
M.
, and
Giorgi
,
L.
, 2003, “
Nafion Degradation in PEFCs From End Plate Iron Contamination
,”
Electrochim. Acta
0013-4686,
48
, pp.
1543
1549
.
16.
Rockel
,
M.
, 1998,
Nickel Alloys—Corrosion Behaviour of Nickel Alloys and High-Alloy Stainless Steel
,
Heuβner
,
U.
, ed.,
Marcel Decker
, New York.
17.
Kinnunen
,
P.
, 2002, “
Electrochemical Characterisation and Modelling of Passive Films on Ni- and Fe-Based Alloys
,” Ph.D. thesis, Helsinki University of Technology.
18.
Murphy
,
O. J.
,
Cisar
,
A.
, and
Clarke
,
E.
, 1998, “
Low-Cost Light Weight High Power Density PEM Fuel Cell Stack
,”
Electrochim. Acta
0013-4686,
43/24
, pp.
3829
3840
.
19.
Wind
,
J.
,
Späh
,
R.
,
Kaiser
,
W.
, and
Böhm
,
G.
, 2002, “
Metallic Bipolar Plates for PEM Fuel Cells
,”
J. Power Sources
0378-7753,
105
, pp.
256
260
.
20.
Lee
,
S. J.
,
Huang
,
C. H.
,
Lai
,
J. J.
, and
Chen
,
Y. P.
, 2004, “
Corrosion-Resistant Component for PEM Fuel Cells
,”
J. Power Sources
0378-7753,
131
, pp.
162
168
.
21.
Lee
,
S. J.
,
Huang
,
C. H.
, and
Chen
,
Y. P.
, 2003, “
Investigation of PVD Coating on Corrosion Resistance of Metallic Bipolar Plates in PEM Fuel Cell
,”
J. Mater. Process. Technol.
0924-0136,
140
, pp.
688
693
.
22.
Wang
,
H.
,
Brady
,
M. P.
,
Teeter
,
G.
, and
Turner
,
J. A.
, 2004, “
Thermally Nitrided Stainless Steels for Polymer Electrolyte Membrane Fuel Cell Bipolar Plates: Part 1: Model Ni-50Cr and Austenitic 349™ Alloys
,”
J. Power Sources
0378-7753,
138
, pp.
86
93
.
23.
Feng
,
H. P.
,
Hsu
,
C. H.
,
Lu
,
J. K.
, and
Shy
,
Y. H.
, 2003, “
Effects of PVD Sputtered Coatings on the Corrosion Resistance of AISI 304 Stainless Steel
,”
Mater. Sci. Eng., A
0921-5093,
347
, p.
123
.
24.
Brady
,
M. P.
,
Weisbrod
,
K.
,
Palauskas
,
I.
,
Buchanan
,
R. A.
,
More
,
K. L.
,
Wang
,
H.
,
Wilson
,
M.
,
Garzon
,
F.
, and
Walker
,
L. R.
, 2004, “
Preferential Thermal Nitridation to Form Pin-Hole Free Cr-Nitrides to Protect Proton Exchange Membrane Fuel Cell Metallic Bipolar Plates
,”
Scr. Mater.
1359-6462,
50
, pp.
1017
1022
.
25.
Pozio
,
A.
,
Giorgi
,
L.
,
De Francesco
,
M.
,
Silva
,
R. F.
,
Lo Presti
,
R.
, and
Danzi
,
A.
, 2002, “
Membrane Electrode Gasket Assembly (MEGA) Technology for Polymer Electrolyte Fuel Cells
,”
J. Power Sources
0378-7753,
112
, pp.
491
496
.
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