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Title: A high performance direct carbon solid oxide fuel cell stack for portable applications
Authors: Wang, XQ
Liu, J
Xie, YM
Cai, WZ 
Zhang, YP
Zhou, Q
Yu, FY
Liu, ML
Keywords: Solid oxide fuel cell
Carbon fuel
Segmented-in-series stack
Carbon-air battery
Portable application
Issue Date: 2017
Publisher: Peking University Press
Source: Acta physico-chimica sinica, 2017, v. 33, no. 8, p. 1614-1620 How to cite?
Journal: Acta physico-chimica sinica 
Abstract: A direct carbon solid oxide fuel cell (DC-SOFC) stack was prepared with 3 tubular cells electrically connected in series. To increase carbon storage in the stack, the anode was fabricated outside the tubular cells so that carbon fuel can be loaded at the exterior of the stack, which is more spacious than the interior. The 3-cell-stack is operated directly with carbon as the fuel and oxygen in ambient air as the oxidant. With a total effective area of 10.2 cm(2) and a 5% (w) Fe-loaded activated carbon fuel of 17 g, the stack reveals a peak power of 4.1 W at 800 degrees C. The stack discharged at a constant current of 1.0 A for 19 h, giving a charge capacity of 19 A center dot h and an energy capacity of 31.6 W center dot h, which are much higher than those of a similar stack with anode on the inside and carbon loaded at the interior. The high capacity of our DC-SOFC opens up potential applications in portable devices.
ISSN: 1000-6818
DOI: 10.3866/PKU.WHXB201704181
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