Effect of Membrane Electrode Assembly Fabrication Method on the Single Cell Performances of Polybenzimidazole-Based High Temperature Polymer Electrolyte Membrane Fuel Cells
- Authors
- 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
- Issue Date
- 11월-2014
- Publisher
- POLYMER SOC KOREA
- Keywords
- high temperature polymer electrolyte membrane fuel cell; polybenzimidazole; polytetrafluoroethylene binder
- Citation
- MACROMOLECULAR RESEARCH, v.22, no.11, pp.1214 - 1220
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- MACROMOLECULAR RESEARCH
- Volume
- 22
- Number
- 11
- Start Page
- 1214
- End Page
- 1220
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/96980
- DOI
- 10.1007/s13233-014-2167-x
- ISSN
- 1598-5032
- Abstract
- 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.
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Collections - College of Science and Technology > Department of Advanced Materials Chemistry > 1. Journal Articles
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