TY - JOUR
T1 - Effect of through-plane polytetrafluoroethylene distribution in gas diffusion layers on performance of proton exchange membrane fuel cells
AU - Ito, Hiroshi
AU - Iwamura, Takuya
AU - Someya, Satoshi
AU - Munakata, Tetsuo
AU - Nakano, Akihiro
AU - Heo, Yun
AU - Ishida, Masayoshi
AU - Nakajima, Hironori
AU - Kitahara, Tatsumi
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2016/2/29
Y1 - 2016/2/29
N2 - This experimental study identifies the effect of through-plane polytetrafluoroethylene (PTFE) distribution in gas diffusion backing (GDB) on the performance of proton exchange membrane fuel cells (PEMFC). PTFE-drying under vacuum pressure created a relatively uniform PTFE distribution in GDB compared to drying under atmospheric pressure. Carbon paper samples with different PTFE distributions due to the difference in drying conditions were prepared and used for the cathode gas diffusion layer (GDL) of PEMFCs. Also investigated is the effect of MPL application on the performance for those samples. The current density (i) - voltage (V) characteristics of these PEMFCs measured under high relative humidity conditions clearly showed that, with or without MPL, the cell using the GDL with PTFE dried under vacuum condition showed better performance than that dried under atmospheric condition. It is suggested that this improved performance is caused by the efficient transport of liquid water through the GDB due to the uniform distribution of PTFE.
AB - This experimental study identifies the effect of through-plane polytetrafluoroethylene (PTFE) distribution in gas diffusion backing (GDB) on the performance of proton exchange membrane fuel cells (PEMFC). PTFE-drying under vacuum pressure created a relatively uniform PTFE distribution in GDB compared to drying under atmospheric pressure. Carbon paper samples with different PTFE distributions due to the difference in drying conditions were prepared and used for the cathode gas diffusion layer (GDL) of PEMFCs. Also investigated is the effect of MPL application on the performance for those samples. The current density (i) - voltage (V) characteristics of these PEMFCs measured under high relative humidity conditions clearly showed that, with or without MPL, the cell using the GDL with PTFE dried under vacuum condition showed better performance than that dried under atmospheric condition. It is suggested that this improved performance is caused by the efficient transport of liquid water through the GDB due to the uniform distribution of PTFE.
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U2 - 10.1016/j.jpowsour.2015.12.020
DO - 10.1016/j.jpowsour.2015.12.020
M3 - Article
AN - SCOPUS:84950290598
SN - 0378-7753
VL - 306
SP - 289
EP - 299
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -
