Conference proceeding
Interfacial Morphology and Contact Resistance Model for Polymer Electrolyte Fuel Cells
PROTON EXCHANGE MEMBRANE FUEL CELLS 9, v 25(1), pp 15-27
01 Jan 2009
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The imperfect interface between the catalyst later (CL) and micro porous layer (MPL) in a polymer electrolyte fuel cell (PEFC) results in interfacial gaps which can be considerably larger than the pores in the bulk CL and MPL. This leads to an electronic resistance and a potential pooling location for liquid water resulting in mass transport losses. In this study, an analytical model representing the CL vertical bar MPL interface under compression is developed to estimate the electrical contact resistance and to elucidate the effect of the initial surface morphology on the contact resistance and interfacial void volume. The results show that the local compression pressure, elasticity of the diffusion media and surface morphology of the mating materials are the key factors controlling the CL vertical bar MPL interfacial contact. This micro-contact model not only strengthens our understanding of the CL vertical bar MPL interface, but once integrated with a macroscopic fuel cell model, can be used to more accurately predict fuel cell performance.
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Details
- Title
- Interfacial Morphology and Contact Resistance Model for Polymer Electrolyte Fuel Cells
- Creators
- T. Swamy - Pennsylvania State UniversityF. E. Hizir - Pennsylvania State UniversityManish Khandelwal - Pennsylvania State UniversityE. C. Kumbur - Pennsylvania State UniversityM. M. Mench - Penn State Univ, Dept Mech Engn, FCDDL, University Pk, PA 16802 USA
- Publication Details
- PROTON EXCHANGE MEMBRANE FUEL CELLS 9, v 25(1), pp 15-27
- Series
- ECS Transactions
- Publisher
- Electrochemical Soc Inc
- Number of pages
- 13
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000329585500002
- Scopus ID
- 2-s2.0-76449106798
- Other Identifier
- 991019173743204721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Electrochemistry
- Energy & Fuels