Bio-Based Anti-Corrosion Polymer Coating for Fuel Cells Bipolar Plates

2020 ◽  
Vol 869 ◽  
pp. 413-418
Author(s):  
Nikita Faddeev ◽  
Victor Klushin ◽  
Nina Smirnova
Keyword(s):  
Fuel Cells ◽  
Polymer Coating ◽  
Plant Biomass ◽  
Polymer Electrolyte Membrane ◽  
Conductive Polymer ◽  
Corrosion Current ◽  
Bipolar Plates ◽  
Electrolyte Membrane ◽  
Interfacial Contact Resistance ◽  
By Products

A highly corrosion resistant and conductive polymer coating for polymer electrolyte membrane fuel cells bipolar plates have been successfully prepared from renewable plant biomass sources. The coating is based on the 5-hydroxymethylfurfural synthesis by-product resin that consists of complex furanic oligomers and polymers. The corrosion resistance and conductivity of coated titanium plates have been studied. As-prepared coated Ti samples are shown 0.083 μA/cm2 and 0.32 μA/cm2 corrosion current in the simulated PEMFCs cathode and anode environment respectively. In addition, the polymer coating are reduced the interfacial contact resistance of bare titanium up to 40 %. The Ti plates coated with by-products of 5-HMF synthesis are shown a great potential application as bipolar plates for PEMFCs.

Fluoroplastic- and Bio-Based Composites Materials for PEM Fuel Cells Bipolar Plates

2021 ◽  
Vol 899 ◽  
pp. 192-201
Author(s):  
Nikita Faddeev ◽  
Denis Tokarev ◽  
Tatyana A. Molodtsova ◽  
Maxim Belichenko ◽  
Victor Klushin
Keyword(s):  
Mechanical Properties ◽  
Fuel Cells ◽  
Plant Biomass ◽  
Polymer Electrolyte Membrane ◽  
Conductive Polymer ◽  
Conductive Filler ◽  
Pem Fuel Cells ◽  
Bipolar Plates ◽  
Colloidal Graphite ◽  
Electrolyte Membrane

Conductive polymer composite materials for polymer electrolyte membrane fuel cells bipolar plates have been successfully prepared from renewable plant biomass sources and copolymers of tetrafluoroethylene with vinylidenefluoride. The composites are based on various conductive fillers (natural, oxidized and colloidal graphite’s) and polymer binder (the 5-HMF synthesis by-product or fluoroplastic). The influences of type and content of binder and type of conductive filler on the mechanical properties and conductivity were investigated. Conductivity of the composites decreases with increasing of polymer content, but its mechanical properties changes inversely. Composite based on 5-HMF by-products (content 30 wt.%) and colloidal graphite as a filler meets the DOE requirements for a mechanical strength. Flexural and compressive strengths were 25 and 32 MPa, respectively. Composites based on fluoroplastic 32 (content 30 wt.%) and fluoroplastic 42 (content 20 wt.%) with colloidal graphite as a filler and fluoroplastic 42 (content 20 wt.%) with nature graphite have flexural strength values close to the target value of DOE and amounted to 24, 17 and 19 MPa, respectively. Interfacial contact resistance depends to a greater extent on the nature of the filler and is maximum for composites based on natural graphite. Composites based on fluoroplastic 42 at any filler content correspond to the requirements DOE ≤ 0.01 ohm∙cm2. Composite based on 5-HMF synthesis by-product (resin) and fluoroplastic with conductive filler (colloidal graphite) shows a great potential application as bipolar plates for PEMFCs.

Preparation and characterization of graphite/resin composite bipolar plates for polymer electrolyte membrane fuel cells

2016 ◽  
Vol 23 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Hui Chen ◽  
Xiao-Hong Xia ◽  
Li Yang ◽  
Yue-de He ◽  
Hong-bo Liu
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Resin Composite ◽  
Polymer Electrolyte Membrane ◽  
Expanded Graphite ◽  
Corrosion Current ◽  
Compression Molding ◽  
Bipolar Plates ◽  
Solution Intercalation ◽  
Electrolyte Membrane

AbstractPreparing conductive composite bipolar plates for fuel cells by compression molding is a promising research direction. The very key point is how to choose the conductivity filler and binder to meet the requirement. In this article, natural graphite and expanded graphite were used as the filler, and phenolic resin and epoxy resin were used as the binder. The composite bipolar plates were prepared by solution intercalation mixing, compression molding, and curing. The variations in electrical conductivity and mechanical properties were evaluated with the resin content. The results show that the types of fillers and binders have significant effects on the performance of composite bipolar plates, and that the thermal stability of all composite bipolar plates is very good at the fuel-cell working temperature. The corrosion current densities were <16 μA/cm2, which indicates that the composites developed in this work meet many attributes of bipolar plates for use in polymer electrolyte membrane fuel cells.

Bio-Based Conductive Polymer Composite Materials for Fuel Cells Bipolar Plates

2020 ◽  
Vol 869 ◽  
pp. 591-596
Author(s):  
Nikita Faddeev ◽  
Victor Klushin ◽  
Denis Tokarev ◽  
Nina Smirnova
Keyword(s):  
Mechanical Properties ◽  
Fuel Cells ◽  
Composite Materials ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Conductive Polymer ◽  
Conductive Filler ◽  
Resin Content ◽  
Bipolar Plates ◽  
Electrolyte Membrane

Conductive polymer composite materials for polymer electrolyte membrane fuel cells bipolar plates have been successfully prepared from renewable plant biomass sources. The composites are based on various conductive fillers (natural, oxidized and colloidal graphites) and the 5-hydroxymethylfurfural synthesis by-product resin that consists of complex furanic oligomers and polymers. The influences of the resin content and type of conductive filler were investigated. The conductivity of the composite are decreased with increasing resin content, but its mechanical properties are improve. A sample with a resin content of 10 wt. % and colloidal graphite filler have showed the optimal balance between electrical conductivity and mechanical properties. The interfacial contacting resistance, flexural and compressive strength of the composite were 0.035 ohm•cm2, 18.4 MPa and 21.4 MPa, respectively. Composite based on 5-hydroxymethylfurfural synthesis by-product resin and conductive filler (colloidal graphite) are showed a great potential application as bipolar plates for polymer electrolyte membrane fuel cells.

Study on the Carbon Composite Bipolar Plates for Polymer Electrolyte Membrane Fuel Cells

2004 ◽  
pp. 307-314 ◽  
Author(s):  
U.-S. JEON ◽  
S.-Y. AHN ◽  
Y. M. CHOI ◽  
K. K. KIM ◽  
E. A. CHO ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Carbon Composite ◽  
Bipolar Plates ◽  
Electrolyte Membrane

Assessment of Thermal Nitridation to Protect Metal Bipolar Plates in Polymer Electrolyte Membrane Fuel Cells

2002 ◽  
Vol 5 (11) ◽  
pp. A245 ◽  
Author(s):  
M. P. Brady ◽  
K. Weisbrod ◽  
C. Zawodzinski ◽  
I. Paulauskas ◽  
R. A. Buchanan ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Bipolar Plates ◽  
Electrolyte Membrane ◽  
Thermal Nitridation

Metallic Bipolar Plates for High Temperature Polymer Electrolyte Membrane Fuel Cells

Fuel Cells ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 39-45 ◽  
Author(s):  
P. Alnegren ◽  
J. G. Grolig ◽  
J. Ekberg ◽  
G. Göransson ◽  
J.-E. Svensson
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Bipolar Plates ◽  
Electrolyte Membrane ◽  
Metallic Bipolar Plates

Lightweight Titanium Metal Bipolar Plates for PEM Fuel Cells

2016 ◽  
Vol 879 ◽  
pp. 613-618 ◽  
Author(s):  
Karen Swider Lyons ◽  
Benjamin D. Gould
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte Membrane ◽  
Superplastic Forming ◽  
Pem Fuel Cells ◽  
Multiple Roles ◽  
Naval Research ◽  
Titanium Metal ◽  
Bipolar Plates ◽  
Electrolyte Membrane ◽  
3D Printed

Bipolar plates (BPPs) serve multiple roles in polymer electrolyte membrane fuel cells (PEMFCs). When assembled in a stack, they provide the structural backbone of the stack, plus serial electronic connections. They also provide gas (air and fuel) and coolant distribution pathways. Traditionally, bipolar plates have been made of carbon, but these are being replaced in favor of metal bipolar plates made of stamped foils. The Naval Research Laboratory has explored making titanium metal BPPs using 3D printing methods (direct metal laser sintering – DMLS) and superplastic forming, and then using a gold/TiO2 surface layer for corrosion resistance. The 3D printed plates are made as one piece with the coolant flow internal to the resulting 2-mm thick structure. Their surface roughness requires smoothing prior to coating to increase their cell-to-cell conductivity. We found that 3D printed cells with 22 and 66 cm2 active areas are slightly warped, preventing the robust sealing of the stacks. The formed plates are made in separate pieces and then joined. Despite the high temperatures required for superplastic forming, the resulting plates are thin and lightweight, making them highly attractive for lightweight compact PEMFC stacks.

Sign in / Sign up

Export Citation Format

Share Document