It also requires a long hot-pressing duration
(3e10 min) under very high pressure (10.0e35.0 MPa) to
improve the transfer yield. The successful use of any new
technology on a commercial level depends on the simplification
of its steps and the ease of scale-up [20]. The idea of a rollto-
roll fabrication process is prevalent for fuel cells in order to
enable the high-volume manufacturing of MEAs, particularly
PEMFCs which use much lower catalyst loadings than DMFCs
do, and it is schematically shown in Fig. 1. An important
component of such a continuous, roll-to-roll MEA fabrication
process is a roll-press machine that is used to carry out the