Journal
JOURNAL OF POWER SOURCES
Volume 196, Issue 13, Pages 5659-5666Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2011.02.036
Keywords
Lithium batteries; Carbon monofluoride; Solid state nuclear magnetic resonance
Funding
- National Institutes of Health [RR 003037]
- office of Naval Research
- Center for Advanced Technology in Photonics Applications at The City University of New York
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Electrochemical studies of three types of CFx (F - fiber based, C - petroleum coke based, G - graphite based) have demonstrated different electrochemical performances in previous work, with fiber based CFx delivering superior performance over those based on petroleum coke and graphite. C-13 and F-19 MAS (magic angle spinning) NMR techniques are employed to identify the atomic/molecular structural factors that might account for differences in electrochemical performance among the different types of CFx. Small quantitative variations of covalent CF and LiF are noted as a function of discharge and sp(3) bonded carbons are detected in discharged F type of CFx. (C) 2011 Elsevier B.V. All rights reserved.
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