Journal of the Electrochemical Society, volume 158, issue 3, pages A337
Electrolyte Additive in Support of 5 V Li Ion Chemistry
Arthur V. Cresce
1, 2, 3
,
Kang Xu
1, 2, 3
1
Electrochemistry Branch, Power and Energy Division Sensor and Electron Devices Directorate
2
U.S. Army Research Laboratory
3
Adelphi Maryland 20783 USA
|
Publication type: Journal Article
Publication date: 2011-01-21
scimago Q1
SJR: 0.868
CiteScore: 7.2
Impact factor: 3.1
ISSN: 00134651, 19457111
Materials Chemistry
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Electrochemistry
Condensed Matter Physics
Renewable Energy, Sustainability and the Environment
Abstract
An electrolyte additive based on highly fluorinated phosphate ester structure was identified as being able to stabilize carbonate-based electrolytes on 5 V class cathode surfaces. The synthesis and structural analysis of the additive are described, and preliminary yet encouraging results from electrochemical characterization showed that this additive participates in forming a protective interphasial chemistry not only on transition metal oxide cathode at high voltage (∼5 V vs Li) but also on graphitic graphite at low voltage (∼0 V vs Li), making it possible to formulate an electrolyte supporting reversible Li + -intercalation chemistry in the coveted 5 V region.
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