Effect of Fluoroethylene Carbonate on Electrochemical Performances of Lithium Electrodes and Lithium-Sulfur Batteries
- 4 April 2013
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 160 (6), A873-A881
- https://doi.org/10.1149/2.101306jes
Abstract
The positive impact of a fluoroethylene carbonate (FEC) solvent on the interfacial stability of Li metal electrodes and the electrochemical performance of lithium-sulfur (Li-S) cells is investigated. To confirm the effects of FEC on electrolyte decomposition and cell resistance, the surface chemistry and impedance of an Li electrode cycled in electrolytes with and without a FEC solvent are investigated using attenuated total reflectance–Fourier transform infrared (ATR-FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), time of flight secondary ion mass spectrometry (ToF-SIMS), and electrochemical impedance spectroscopy. A protective layer with a FEC solvent for the formation of robust SEI and carbonate-based solvents for the suppression of polysulfide attack against an Li anode was formed on the Li anode by UV-curing polymerization. It is found that the protective layer with FEC effectively suppresses the significant overcharge by the shuttle process of polysulfide species and improves cycling performance of Li-S cells.Keywords
This publication has 37 references indexed in Scilit:
- Lithium/Sulfur Cell Discharge Mechanism: An Original Approach for Intermediate Species IdentificationAnalytical Chemistry, 2012
- Investigation of the Solid Electrolyte Interphase Formed by Fluoroethylene Carbonate on Si ElectrodesJournal of the Electrochemical Society, 2011
- Pig bone derived hierarchical porous carbon and its enhanced cycling performance of lithium–sulfur batteriesEnergy & Environmental Science, 2011
- Enhanced thermal properties of the solid electrolyte interphase formed on graphite in an electrolyte with fluoroethylene carbonateElectrochimica Acta, 2009
- Protective coating of lithium metal electrode for interfacial enhancement with gel polymer electrolyteSolid State Ionics, 2004
- Interfacial enhancement between lithium electrode and polymer electrolytesJournal of Power Sources, 2003
- Electrochemical performance of lithium/sulfur batteries with protected Li anodesJournal of Power Sources, 2003
- The Lithium/Sulfur Rechargeable CellJournal of the Electrochemical Society, 2002
- Fluoroethylene carbonate electrolyte and its use in lithium ion batteries with graphite anodesJournal of Power Sources, 1999
- Modification of lithium/electrolyte interface by plasma polymerization of 1,1-difluoroetheneJournal of Power Sources, 1993