Graded Structure Design of the Microporous Layer for Improving the Mass Transfer Performance of Proton-Exchange Membrane Fuel Cells
Xinyuan Wang,
Gang-Ping Wu
Abstract:The
microporous layer (MPL) in membrane electrodes is critical
for mass transfer in proton-exchange membrane fuel cells (PEMFCs).
The mass transfer loss in electrodes is very serious when operating
in high-current-density and high-humidity environments, which greatly
reduces the output performance and durability of fuel cells. To address
these challenges, we designed an MPL with a graded pore structure.
By controlling the content of the pore former in the MPL slurry, conventional
MPLs with uniform pores are co… Show more
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