2011
DOI: 10.1016/j.jpowsour.2010.12.093
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Development of a novel pseudo bipolar piezoelectric proton exchange membrane fuel cell with nozzle and diffuser

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Cited by 11 publications
(6 citation statements)
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“…[77] Improvement in the excess liquid water evacuation. [85][86][87][88][89][90] Freeze/thaw cycles Unchanged ohmic resistance [99] Reduction in the electrocatalyst surface area (ECSA). [96,97] Increase in the porosity of the electrode.…”
Section: Vibrationmentioning
confidence: 99%
See 1 more Smart Citation
“…[77] Improvement in the excess liquid water evacuation. [85][86][87][88][89][90] Freeze/thaw cycles Unchanged ohmic resistance [99] Reduction in the electrocatalyst surface area (ECSA). [96,97] Increase in the porosity of the electrode.…”
Section: Vibrationmentioning
confidence: 99%
“…This finding seems to be a promising route to mitigate PEFC water management issues. Indeed, recent studies carried out by Ma and co-workers[87][88][89][90] investigated the potential use of the so-called piezoelectric polymer electrolyte fuel cells (PZT-PEFCs). In these novel PZT-PEFCs, the piezoelectric actuators are placed on the cathode channels allowing the operation of an air breathing PEFCs by forcing the air into the channels and, at the same time, pumping out water during the compression phase of the PZT device.…”
mentioning
confidence: 99%
“…Their studies , on a PZT‐PEMFC with a nozzle and diffuser showed that a PZT actuator could solve the water‐flooding problems in a cathode and improve the cell performance. Other studies , have also shown that an improved PZT‐PEMFC cell performance could be obtained by using an aspect ratio ( AR ) of 11.25 and diffuser angle ( θ ) of 5°. A schematic diagram showing the aspect ratio and diffuser angle is shown in Figure .…”
Section: Introductionmentioning
confidence: 98%
“…Additionally, four FC stacks can be coupled before being connected to the power converter; this arrangement increases the total output voltage, but the system can be severely weakened when one or more FCs fails. Furthermore, previous studies [13][14][15] showed that a low-powered piezoelectric PEMFC stack (PZT-Stack) with a pseudo-bipolar design does not exhibit open circuit behavior even if one of the component cells fails in the electrical cascade configuration. The pseudo-bipolar design is used as the common cathode collector, and the collector support is constructed from a gold-plated copper plate to allow for conduction between the two component cells.…”
Section: Introductionmentioning
confidence: 99%