Cycling performance of lithium metal polymer cells assembled with ionic liquid and poly(3-methyl thiophene)/carbon nanotube composite cathode

Kim, Dong-Won, Sivakkumar, S.R., MacFarlane, Douglas R., Forsyth, Maria and Sun, Yang-Kook 2008, Cycling performance of lithium metal polymer cells assembled with ionic liquid and poly(3-methyl thiophene)/carbon nanotube composite cathode, Journal of power sources, vol. 180, no. 1, pp. 591-596.

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Title Cycling performance of lithium metal polymer cells assembled with ionic liquid and poly(3-methyl thiophene)/carbon nanotube composite cathode
Author(s) Kim, Dong-Won
Sivakkumar, S.R.
MacFarlane, Douglas R.
Forsyth, Maria
Sun, Yang-Kook
Journal name Journal of power sources
Volume number 180
Issue number 1
Start page 591
End page 596
Publisher Elsevier SA
Place of publication Switzerland
Publication date 2008-05-15
ISSN 0378-7753
1873-2755
Keyword(s) Carbon nanotube
Conducting polymer
Ionic liquid
Lithium metal polymer cell
Poly(3-methylthiophene)
Safety
Summary A poly(3-methylthiophene) (PMT)/multi-walled carbon nanotube (CNT) composite is synthesized by in situ chemical polymerization. The PMT/CNT composite is used as an active cathode material in lithium metal polymer cells assembled with ionic liquid (IL) electrolytes. The IL electrolyte consists of 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) and LiBF4. A small amount of vinylene carbonate is added to the IL electrolyte to prevent the reductive decomposition of the imidazolium cation in EMIBF4. A porous poly(vinylidene fluoride-co-hexafluoropropylene) (P(VdF-co-HFP)) film is used as a polymer membrane for assembling the cells. Electrochemical properties of the PMT/CNT composite electrode in the IL electrolyte are evaluated and the effect of vinylene carbonate on the cycling performance of the lithium metal polymer cells is investigated. The cells assembled with a non-flammable IL electrolyte and a PMT/CNT composite cathode are promising candidates for high-voltage–power sources with enhanced safety.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, Published by Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030180

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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