Modelling the Proton-Conductive Membrane in Practical Polymer Electrolyte Membrane Fuel Cell (PEMFC) Simulation: A...

Area of Science:

• Materials Science
• Electrochemistry
• Chemical Engineering

Background:

• Proton-conductive membranes are critical components in polymer electrolyte membrane fuel cells (PEMFCs).
• Accurate theoretical models are essential for simulating PEMFC performance and macroscopic behavior.
• Existing models require consistent parameterization for practical applications.

Purpose of the Study:

• To review and compile theoretical models for proton-conductive membranes in PEMFCs.
• To provide a unified source for model parameterization, focusing on Nafion 1100 materials.
• To address various transport phenomena and degradation mechanisms within PEMFC membranes.

Main Methods:

• Compilation of reported theoretical models and their parameterization.
• Detailed analysis of models coupling proton transport with water dynamics (Springer-Zawodzinski-Gottesfeld, Weber-Newman, binary friction model).
• Inclusion of models for interfacial transport, hydraulic transport, swelling, mechanical properties, transient/non-isothermal effects, and contaminant transport.

Main Results:

• Consistent notation and parameterization data for key properties like proton conductivity, water sorption, diffusion, and electroosmotic drag.
• Framework for incorporating interfacial resistances and hydraulic water transport.
• Models for predicting membrane degradation and its impact on PEMFC performance.

Conclusions:

• This review consolidates essential theoretical models and parameterization data for PEMFC membranes.
• It serves as a valuable resource for physicochemical simulations of PEMFC device performance.
• Understanding these models is key to optimizing fuel cell efficiency and longevity.