For hydrogen fuel cells running at low temperature, a single
polymer electrolyte membrane could be fabricated from several
layers of ionomer, each with specific properties so as to optimize
the functionality of the overall membrane. However, an ohmic
resistance between interfaces of two joint polymer electrolyte
membranes is observed for which a theoretical explanation is
missing. In this contribution, a new model for the charged fluid
flow in and between ionomer nanochannels is established and
investigated numerically. Employing a statistical analysis over an
ensemble of nanochannel connections, the model provides a
possible explanation for this interfacial resistance.
«For hydrogen fuel cells running at low temperature, a single
polymer electrolyte membrane could be fabricated from several
layers of ionomer, each with specific properties so as to optimize
the functionality of the overall membrane. However, an ohmic
resistance between interfaces of two joint polymer electrolyte
membranes is observed for which a theoretical explanation is
missing. In this contribution, a new model for the charged fluid
flow in and between ionomer nanochannels is es...
»