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http://dx.doi.org/10.5012/bkcs.2008.29.6.1121

Electrochemical Properties of Carbon Composites Prepared by Using Graphite Ball-milled in Argon and Air Atmosphere  

Lee, Kyoung-Muk (Department of Advanced Materials Science and Engineering, Kangwon National University)
Oh, Seh-Min (Carbonix, Inc.)
Lee, Sung-Man (Department of Advanced Materials Science and Engineering, Kangwon National University)
Publication Information
Bulletin of the Korean Chemical Society / v.29, no.6, 2008 , pp. 1121-1124 More about this Journal
Abstract
A carbon composite was synthesized by mechanical mixing of ball-milled graphite and PVC powders, followed by pyrolysis reaction of PVC. Natural graphite ball milled under atmosphere of argon or air leads to a disordered structure. It appears that the electrochemical lithium intercalation reaction is dependent on the atmosphere in which the graphite is ball milled. The carbon composite obtained using air-milled graphite shows a high reversible capacity and high initial coulombic efficiency compared to argon-milled graphite. This is attributed to the enhanced thermal stability of a disordered structure in the air milled sample. For the one with air-milled graphite, the disordered structure is maintained during heat treatment, while argon-milled graphite is partially crystallized.
Keywords
Graphite; Ball-milling; Electrochemical performance; Lithium-ion battery
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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