Lee, JuYeon Jung, Jeawoo Han, Jun Young Kim, Hyoung-Juhn Jang, Jong Hyun Lee, Hye-Jin Cho, Eun Ae Henkensmeier, Dirk Kim, Jin Young Yoo, Sung Jong Hong, Seong-Ahn Nam, Sang Yong 2024-01-20T08:33:20Z 2024-01-20T08:33:20Z 2021-09-02 2014-11 1598-5032 https://pubs.kist.re.kr/handle/201004/126211 Membrane electrode assemblies (MEAs) for a high temperature polymer electrolyte membrane fuel cell (HTPEMFC) were fabricated using acid-doped polybenzimidazole (PBI) as the electrolyte membrane and polytetrafluoroethylene (PTFE) as the electrode binder. PTFE concentrations of 20, 30, and 45 wt% in the electrode were evaluated to determine the optimal binder content. Additionally, the influence of applying a pressing process during MEA fabrication on the electrode performance was examined. When MEA was prepared without the pressing process, the electrode containing 20 wt% PTFE exhibited the best cell performance (338 mA cm(-2) at 0.6 V). However, when MEA was prepared with the pressing process, the electrode containing 45 wt% PTFE exhibited the best cell performance (281 mA cm(-2) at 0.6 V). This result is because of the inclusion of the pressing process, as gas permeability is hindered by the transfer of excess phosphoric acid from the electrolyte membrane to the electrodes. English 한국고분자학회 Effect of Membrane Electrode Assembly Fabrication Method on the Single Cell Performances of Polybenzimidazole-Based High Temperature Polymer Electrolyte Membrane Fuel Cells Article 10.1007/s13233-014-2167-x 1 Macromolecular Research, v.22, no.11, pp.1214 - 1220 Macromolecular Research 22 11 1214 1220 N scie scopus kci ART001929539 000345397100012 2-s2.0-84912144029 Polymer Science Polymer Science Article GAS-DIFFUSION ELECTRODES ACID high temperature polymer electrolyte membrane fuel cell polybenzimidazole polytetrafluoroethylene binder