An All-in-One Electrode for High-Performance Liquid-Feed Micro Polymer Electrolyte Membrane Fuel Cells. Issue 7 (1st January 2016)

• Record Type: Journal Article
• Authors: Li, Yinshi; He, Yaling
• Is Part Of: Journal of the Electrochemical Society. Volume 163:Issue 7(2016)
• Page Start: F663
• Page End: F667
• Publication Date: 2016-01-01
• Subjects: All-in-one electrode -- Direct ethanol fuel cell -- Fuel cell -- Micro polymer electrolyte membrane fuel cells -- Pd catalyst; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0861607jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Contrary to the conventional layer-separated electrode design, we report a metal foam-based all-in-one electrode that incorporates the flow field, backing layer, micro-porous layer, and catalyst layer into a whole. This innovative design facilitates the mass and charge transport as well as extends the three-phase boundary, thereby enabling to miniaturize the cell system while enhance the power output. It has been demonstrated that when applying a pair of 4.0 × 4.0 × 0.5 mm (length × width × height) all-in-one electrodes to the liquid-feed micro polymer electrolyte membrane fuel cell, the peak power density goes up to 123 mW cm −2 even at room temperature, which is much higher than that of the conventional cell system. The present architecture design meets the potential demand of the high-capacity lab-on-a-chip applications.