期刊
APPLIED THERMAL ENGINEERING
卷 141, 期 -, 页码 642-647出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2018.06.016
关键词
Micro direct methanol fuel cell; Interior impedance; Stainless steel mesh, methanol crossover
资金
- National Natural Science Funds of China [61376113, 61404037]
In this paper, we provide a novel type of micro-direct methanol fuel cell (DMFC) fabricated with two stainless steel plates as metal current collectors. In order to improve cell performance, two sheets of stainless steel mesh (SSM) are added between the membrane electrode assembly (MEA) and current collectors. To avoid electrochemical corrosion, titanium nitride (TiN) layers with thickness of 500 nm are deposited onto the surface of current collectors and stainless steel mesh. The results show that the embedded stainless steel mesh can remarkably reduce the interior impedance of the DMFC. Moreover, compared with DMFC without SSM, the novel cell exhibits a more outstanding performance, yielding a maximum power density of 54.4 mW cm(-2) at 80 degrees C.
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