Annealing induced interfacial layers in niobium-clad stainless steel developed as a bipolar plate material for polymer electrolyte membrane fuel cell stacks

2010 ◽  
Vol 195 (9) ◽  
pp. 2592-2598 ◽  
Author(s):  
Sung-Tae Hong ◽  
K. Scott Weil ◽  
In-Tae Bae ◽  
Jung Pyung Choi ◽  
Jwo Pan
Keyword(s):  
Stainless Steel ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Bipolar Plate ◽  
Plate Material ◽  
Interfacial Layers ◽  
Electrolyte Membrane

Preparation of Multi-Layer Film on Stainless Steel as Bipolar Plate for Polymer Electrolyte Membrane Fuel Cell

2010 ◽  
Vol 113-116 ◽  
pp. 2255-2261
Author(s):  
Dong Ming Zhang ◽  
Lu Guo ◽  
Liang Tao Duan ◽  
Zai Yi Wang
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Electrical Conductance ◽  
Bipolar Plate ◽  
Contact Angles ◽  
Water Contact ◽  
Electrolyte Membrane

In the present study, we try to prepare hydrophobic film coated on stainless steel as the bipolar plate for polymer electrolyte membrane fuel cell (PEMFC). Magnetron sputtering (MS) was adoped to prepare the Cr3Ni2/Cr2N multi-layer coated on stainless steel. The corrosion resistance and electrical conductance of the coated substrate were tested. The water contact angles were measured. The film exhibits improved corrosion resistance and electrical conductance. The corrosion current is 0.58µA.cm-2 and the contact resistance at 240N.cm-2 is 8.5mΩ.cm2. Meanwhile, it is a kind of hydrophobic film with water contact angle of 107o. The performance shows strong dependance on microstructural characteristics. The nano-protrudes on the SS304/Cr3Ni2/Cr2N surface result in the film with hydrophobic property, just like the effect of lotus surface.

scholarly journals Corrosion Resistance Measurements of Amorphous Ni40Ti40Nb20 Bipolar Plate Material for Polymer Electrolyte Membrane Fuel Cells

2013 ◽  
Vol 8-9 ◽  
pp. 335-342 ◽  
Author(s):  
György Thalmaier ◽  
Ioan Vida-Simiti ◽  
Horatiu Vermesan ◽  
Cosmin Codrean ◽  
Mihail Chira
Keyword(s):  
Corrosion Resistance ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Amorphous Material ◽  
Bipolar Plate ◽  
Hydrogen Gas ◽  
Bipolar Plates ◽  
Plate Material ◽  
Electrolyte Membrane

Metallic bipolar plates have the advantages of better manufacturability, higher strength over graphite bipolar plates. The higher strength and toughness of the metallic materials permits the reduction of the width of the bipolar plate so, the volume and mass of the fuel cell can also be reduced. In this paper we are investigating the use of Ni-based amorphous material as a bipolar plate for polymer electrolyte membrane fuel cell (PEMFC). The major requirements of the metallic bipolar plate material are low weight, high corrosion and low contact resistance. The corrosion property of the present alloy has been investigated under conditions that simulate the fuel cell environment. Hydrogen gas and air were bubbled into a 1 N H2SO4solution at 70 °C, throughout the experiment to simulate the respective anodic and cathodic PEMFC environment. The Ni-base amorphous alloys displayed higher corrosion resistance than stainless steel.

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