Temperature Dependence of Ion and Water Transport in Perfluorinated Ionomer Membranes for Fuel Cells

2005 ◽  
Vol 109 (8) ◽  
pp. 3112-3119 ◽  
Author(s):  
Morihiro Saito ◽  
Kikuko Hayamizu ◽  
Tatsuhiro Okada
Keyword(s):  
Fuel Cells ◽  
Temperature Dependence ◽  
Water Transport ◽  
Ionomer Membranes

Mechanisms of Ion and Water Transport in Perfluorosulfonated Ionomer Membranes for Fuel Cells

2004 ◽  
Vol 108 (41) ◽  
pp. 16064-16070 ◽  
Author(s):  
Morihiro Saito ◽  
Naoko Arimura ◽  
Kikuko Hayamizu ◽  
Tatsuhiro Okada
Keyword(s):  
Fuel Cells ◽  
Water Transport ◽  
Ionomer Membranes ◽  
Perfluorosulfonated Ionomer

Neutron radiographic in operando investigation of water transport in polymer electrolyte membrane fuel cells with channel barriers

2017 ◽  
Vol 148 ◽  
pp. 604-610 ◽  
Author(s):  
Saad S. Alrwashdeh ◽  
Ingo Manke ◽  
Henning Markötter ◽  
Jan Haußmann ◽  
Nikolay Kardjilov ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Water Transport ◽  
Polymer Electrolyte Membrane ◽  
Electrolyte Membrane ◽  
In Operando

Temperature- and Humidity-Controlled SAXS Analysis of Proton-Conductive Ionomer Membranes for Fuel Cells

ChemSusChem ◽  
2014 ◽  
Vol 7 (3) ◽  
pp. 729-733 ◽  
Author(s):  
Takashi Mochizuki ◽  
Katsuyoshi Kakinuma ◽  
Makoto Uchida ◽  
Shigehito Deki ◽  
Masahiro Watanabe ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Ionomer Membranes ◽  
Temperature And Humidity ◽  
Saxs Analysis

Effect of Vibration on the Liquid Water Transport of PEM Fuel Cells

2009 ◽  
Author(s):  
Luis Breziner ◽  
Peter Strahs ◽  
Parsaoran Hutapea
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Water Transport ◽  
Liquid Water ◽  
Pem Fuel Cells ◽  
Gas Diffusion ◽  
Cell Performance ◽  
Sinusoidal Vibration ◽  
Fuel Cell Performance ◽  
Liquid Water Transport

The objective of this research is to analyze the effects of vibration on the performance of hydrogen PEM fuel cells. It has been reported that if the liquid water transport across the gas diffusion layer (GDL) changes, so does the overall cell performance. Since many fuel cells operate under a vibrating environment –as in the case of automotive applications, this may influence the liquid water concentration across the GDL at different current densities, affecting the overall fuel cell performance. The problem was developed in two main steps. First, the basis for an analytical model was established using current models for water transport in porous media. Then, a series of experiments were carried, monitoring the performance of the fuel cell for different parameters of oscillation. For sinusoidal vibration at 10, 20 and 50Hz (2 g of magnitude), a decrease in the fuel cell performance by 2.2%, 1.1% and 1.3% was recorded when compared to operation at no vibration respectively. For 5 g of magnitude, the fuel cell reported a drop of 5.8% at 50 Hz, whereas at 20 Hz the performance increased by 1.3%. Although more extensive experimentation is needed to identify a relationship between magnitude and frequency of vibration affecting the performance of the fuel cell as well as a throughout examination of the liquid water formation in the cathode, this study shows that sinusoidal vibration, overall, affects the performance of PEM fuel cells.

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