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All-carbon-based cathode for a true high-energy-density Li-O-2 battery
Cited 28 time in
Web of Science
Cited 27 time in Scopus
- Authors
- Issue Date
- 2017-04
- Publisher
- Pergamon Press Ltd.
- Citation
- Carbon, Vol.114, pp.311-316
- Abstract
- Li-O-2 batteries have a high theoretical energy density; however, their current cathode system based on a heavy metal framework strikingly diminishes their real energy density. Herein, we report the fabrication of all-carbon-based cathodes composed of conventional active carbon and a carbon mesh (CM) framework produced from waste silk fabric by simple pyrolysis. CM frameworks show a high electrical conductivity of similar to 150 S cm(-1), good tensile strength of 34.1 +/- 5.2 MPa, and a Young's modulus of 4.03 +/- 0.7 GPa, as well as a well-ventilated ordered macroporous structure. These all-carbon-based cathodes exhibit stable cycling and high energy densities of similar to 2600 Wh kg(-1) based on total electrode weight, which are 4-15 times higher than those of conventional air cathodes. (C) 2016 Elsevier Ltd. All rights reserved.
- ISSN
- 0008-6223
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