Abstract
This paper presents the main results obtained during the European project (FCH-JU) "LoLiPEM - Long-life PEM-FCH & CHP systems". The paper describes significant improvements in the polymer electrolyte by tailored heat treatments for cross-linking of Sulfonated Poly(ether ether ketone) (SPEEK), obtained without any addition of cross-linker species. The reported properties of the ionomers include mechanical properties, gas permeability and ionic conductivity. Innovative gas-diffusion electrodes are fabricated by the electrochemical deposition of Pt catalyst; the fuel cell current-voltage characteristics are reported with Nafion and SPEEK-based binder. The fuel cell performances at 80 °C of membrane-electrode-assemblies containing a SPEEK membrane with a cross-linking degree of 32% are among the best in the literature compared with the PEMFC using membrane alternative than Nafion.
| Original language | British English |
|---|---|
| Pages (from-to) | 1921-1934 |
| Number of pages | 14 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 41 |
| Issue number | 3 |
| DOIs | |
| State | Published - 21 Jan 2016 |
Keywords
- Cross-linked SPEEK
- Gas Diffusion Electrode
- Hydrogen cross-over
- MEA preparation
- SPEEK binder