All-carbon-based cathode for a true high-energy-density Li-O2 battery

Title
All-carbon-based cathode for a true high-energy-density Li-O2 battery
Authors
임희대조세연윤영수박규영송민영진형준강기석
Issue Date
2017-04
Publisher
Carbon
Citation
VOL 114-316
Abstract
Li-O2 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 ∼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 ∼2600 Wh kg− 1 based on total electrode weight, which are 4– 15 times higher than those of conventional air cathodes.
URI
http://pubs.kist.re.kr/handle/201004/67596
ISSN
0008-6223
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE