Abstract
Long term tests of PSI membranes based on radiation-grafted FEP and ETFE films were carried out and FEP-based membranes were evaluated by monitoring the in-situ membrane area resistance measured by a current pulse method. By modifying our irradiation procedure and using the double crosslinking concept we obtain reproducible membrane cell lifetimes (in term of in-situ membrane resistance) of greater than 5000 hours at 60-65{sup o}C. Preliminary tests at 80-85{sup o}C with lifetimes of greater than 2500 demonstrate the potential long term stability of PSI proton exchange membranes based on FEP over the whole operating temperature range of low-temperature polymer electrolyte fuel cells. Radiation grafted PSI membranes based on ETFE have better mechanical properties than those of the FEP membranes. Mechanical properties are particularly important in large area cells and fuel cell stacks. ETFE membranes have been tested successfully for approximately 1000 h in a 2-cell stack (100 cm{sup 2} active area each cell). (author) 4 figs., 4 refs.
Huslage, J;
Brack, H P;
Geiger, F;
Buechi, F N;
Tsukada, A;
Scherer, G G
[1]
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Citation Formats
Huslage, J, Brack, H P, Geiger, F, Buechi, F N, Tsukada, A, and Scherer, G G.
Long term testing of PSI-membranes.
Switzerland: N. p.,
1999.
Web.
Huslage, J, Brack, H P, Geiger, F, Buechi, F N, Tsukada, A, & Scherer, G G.
Long term testing of PSI-membranes.
Switzerland.
Huslage, J, Brack, H P, Geiger, F, Buechi, F N, Tsukada, A, and Scherer, G G.
1999.
"Long term testing of PSI-membranes."
Switzerland.
@misc{etde_685684,
title = {Long term testing of PSI-membranes}
author = {Huslage, J, Brack, H P, Geiger, F, Buechi, F N, Tsukada, A, and Scherer, G G}
abstractNote = {Long term tests of PSI membranes based on radiation-grafted FEP and ETFE films were carried out and FEP-based membranes were evaluated by monitoring the in-situ membrane area resistance measured by a current pulse method. By modifying our irradiation procedure and using the double crosslinking concept we obtain reproducible membrane cell lifetimes (in term of in-situ membrane resistance) of greater than 5000 hours at 60-65{sup o}C. Preliminary tests at 80-85{sup o}C with lifetimes of greater than 2500 demonstrate the potential long term stability of PSI proton exchange membranes based on FEP over the whole operating temperature range of low-temperature polymer electrolyte fuel cells. Radiation grafted PSI membranes based on ETFE have better mechanical properties than those of the FEP membranes. Mechanical properties are particularly important in large area cells and fuel cell stacks. ETFE membranes have been tested successfully for approximately 1000 h in a 2-cell stack (100 cm{sup 2} active area each cell). (author) 4 figs., 4 refs.}
place = {Switzerland}
year = {1999}
month = {Aug}
}
title = {Long term testing of PSI-membranes}
author = {Huslage, J, Brack, H P, Geiger, F, Buechi, F N, Tsukada, A, and Scherer, G G}
abstractNote = {Long term tests of PSI membranes based on radiation-grafted FEP and ETFE films were carried out and FEP-based membranes were evaluated by monitoring the in-situ membrane area resistance measured by a current pulse method. By modifying our irradiation procedure and using the double crosslinking concept we obtain reproducible membrane cell lifetimes (in term of in-situ membrane resistance) of greater than 5000 hours at 60-65{sup o}C. Preliminary tests at 80-85{sup o}C with lifetimes of greater than 2500 demonstrate the potential long term stability of PSI proton exchange membranes based on FEP over the whole operating temperature range of low-temperature polymer electrolyte fuel cells. Radiation grafted PSI membranes based on ETFE have better mechanical properties than those of the FEP membranes. Mechanical properties are particularly important in large area cells and fuel cell stacks. ETFE membranes have been tested successfully for approximately 1000 h in a 2-cell stack (100 cm{sup 2} active area each cell). (author) 4 figs., 4 refs.}
place = {Switzerland}
year = {1999}
month = {Aug}
}