Preparation and properties of high performance nanocomposite bipolar plate for fuel cell

Electrical and thermal conductivities of novel metal mesh hybrid polymer composite bipolar plates for proton exchange membrane fuel cells

“…The through-plane conductivity, , is defined as 1/ . A single PEMFC was developed at our laboratory as reported in previous paper [39]. The catalyst ink for the electrodes was prepared by mixing the catalyst powder (20 wt% Pt/C, E-TEK), Nafion ® solution, and isopropyl alcohol.…”

“…However, owing to intrinsic Van der Waals forces, when mixed with polymer matrix, CNTs typically hold together as bundles or as entangled agglomer- ates and form heterogeneous regions. Chemical functionalization [1,3,17,31,39] of CNTs is one of the most common methods to obtain better dispersion. Fig.…”

Preparation and properties of functionalized multiwalled carbon nanotubes/polypropylene nanocomposite bipolar plates for polymer electrolyte membrane fuel cells

“…However, the main problem of the polymer composite bipolar plate is the low electrical conductivity. Therefore, in the recent researches, graphite-based polymer composite bipolar plates have been fabricated from the combination of high concentration of graphites and additional conductive fillers to improve electrical conductivity [15][16][17][18]. Unfortunately, high carbon loading causes a substantial reduction in strength and ductility of composite bipolar plate, resulting in the difficulty of making thin plates required for high stack power densities [7,19,20].…”

“…Unfortunately, high carbon loading causes a substantial reduction in strength and ductility of composite bipolar plate, resulting in the difficulty of making thin plates required for high stack power densities [7,19,20]. Therefore, the reinforced fillers used commonly including carbon nanotube, carbon fiber, and carbon black which have been incorporated into the composites to enhance overall performance of composite bipolar plates by conventional polymer processing technique [18,21]. Among various reinforcements introduced into the polymer composites, carbon nanotubes (CNTs) including single walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) possess outstanding mechanical and electrical properties that have been attracted for high-performance and multifunctional polymer composite applications [22][23][24][25][26][27].…”

Development of Carbon Composite Bipolar Plates for Vanadium Redox Flow Batteries

“…10,11 However, the BPs have been developed for use in fuel cell applications and no detailed data on BPs for vanadium redox flow batteries (VRFBs) have been disclosed so far. The BPs for fuel cells could not be directly applied to flow batteries because the operating environment is highly acidic states in comparison with that of fuel cells.…”