Fabrication of highly porous carbon as sulfur hosts using waste green tea bag powder for lithium-sulfur batteries

Title
Fabrication of highly porous carbon as sulfur hosts using waste green tea bag powder for lithium-sulfur batteries
Authors
김병국서승덕최창훈김동완
Issue Date
2017-02
Publisher
Ceramics international
Citation
VOL 43, NO 2-2841
Abstract
An activated carbon (AC) was synthesized via pyrolysis of waste green tea bag powder at 600 degrees C and subsequent activation of the carbonized powder by KOH at 800 degrees C. The AC powder exhibited an irregular particle size but a large specific surface area and pore volume of 2015 m(2) g(-1) and 0.727 cm(3) g(-1), respectively, which were significantly enhanced values compared with those of the original waste green tea bag powder. Furthermore, we tested the AC for use as a sulfur host for a lithium-sulfur battery cathode using cyclic voltammetry and galvanostatic charge/discharge cycling.
URI
http://pubs.kist.re.kr/handle/201004/64764
ISSN
0272-8842
Appears in Collections:
KIST Publication > Article
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