| Title | Electrochemical and physicochemical properties of PY14 FSI -based electrolytes with LiFSI |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2009 |
| Authors | Paillard, E., Zhou Q., Henderson W.A., Appetecchi Giovanni Battista, Montanino M., and Passerini S. |
| Journal | Journal of the Electrochemical Society |
| Volume | 156 |
| Pagination | A891-A895 |
| ISSN | 00134651 |
| Keywords | Cathodic reactions, Electrochemical properties, Electrolytes, Impurity level, Ionic liquids, Ionization of liquids, Li batteries, Lithium, Lithium cycling, Low viscosity, Melting point, Physicochemical property, Pyrrolidinium-based ionic liquid, Thermal stability |
| Abstract | We report here the characterization of Li battery electrolytes based upon the N -butyl- N -methylpyrrolidinium bis(fluorosulfonyl)imide ionic liquid (PY14 FSI) with lithium bis(fluorosulfonyl)imide (LiFSI) as a support salt. These electrolytes show low viscosity relative to other pyrrolidinium-based ionic liquids (ILs) and corresponding higher onductivity at subambient temperatures. The melting point of the IL decreases with the addition of LiFSI and concentrated samples remain totally amorphous. The electrolytes exhibit decreased thermal stability and increased parasitic cathodic reactions with increasing LiFSI fraction relative to the pure IL, probably due to a higher impurity level for the commercial LiFSI. Despite this, the electrolytes have excellent lithium cycling behavior at 20°C. © 2009 The Electrochemical Society. |
| Notes | cited By 70 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-70349748623&doi=10.1149%2f1.3208048&partnerID=40&md5=7755047c2222879c684073a6f0f12d6c |
| DOI | 10.1149/1.3208048 |
| Citation Key | Paillard2009 |
