A study of the internal humidification of an integrated PEMFC stack

An integrated proton exchange membrane fuel–cell (PEMFC) system has been developed with an internal humidifier within the stack. Research is concentrated on selecting a membrane with low cost and good water permeability because, to date, high-cost membranes (e.g., as Nafion) have been used. The gas...

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Bibliographic Details
Published in:Journal of power sources 1998-07, Vol.74 (1), p.146-150
Main Authors: Choi, K.H, Park, D.J, Rho, Y.W, Kho, Y.T, Lee, T.H
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Internal humidification
PEMFC
Ultrafiltration membrane
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Summary:An integrated proton exchange membrane fuel–cell (PEMFC) system has been developed with an internal humidifier within the stack. Research is concentrated on selecting a membrane with low cost and good water permeability because, to date, high-cost membranes (e.g., as Nafion) have been used. The gas and water permeability of several membranes were measured. A low-cost ultra filtration (UF) membrane shows better characteristics for the internal humidifier and cell performance than the others. Also, saturated water vapour permeating through the UF membrane can be supplied at the stack from the internal humidifier. The internal humidifier using UF membrane is thought to be a satisfactory humidifier for a PEMPC.
ISSN:0378-7753
1873-2755
DOI:10.1016/S0378-7753(98)00048-2