Abstract
A room temperature ionic liquid consisting of N,N,N,N,-cyanomethyl trimethyl ammonium (CTMA) cation and bis(trifluoromethane sulfone)imide (TFSI) anion was newly synthesized, and its electrochemical properties were investigated. This ionic liquid has a melting point of 35°C and an order of conductivity of 10-4 S cm-1. Lithium deposition/ dissolution tests in 0.2 mol dm-3 LiTFSI/CTMATFSI electrolytes showed an improved cycle behavior compared with that of a Li electrolyte based on a tetraalkylammonium ionic liquid without a cyano group. It is suggested that such an improvement may be associated with the formation of a protective film on the lithium surface. Introducing a proper functional group is suggested to be effective to improve the interfacial properties of ionic liquid.
| Original language | English |
|---|---|
| Pages (from-to) | 240-244 |
| Number of pages | 5 |
| Journal | Journal of Power Sources |
| Volume | 138 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Nov 15 2004 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
Cite this
The preparation of quaternary ammonium-based ionic liquid containing a cyano group and its properties in a lithium battery electrolyte. / Egashira, Minato; Okada, Shigeto; Yamaki, Jun Ichi; Dri, Diego Alejandro; Bonadies, Francesco; Scrosati, Bruno.
In: Journal of Power Sources, Vol. 138, No. 1-2, 15.11.2004, p. 240-244.Research output: Contribution to journal › Article
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TY - JOUR
T1 - The preparation of quaternary ammonium-based ionic liquid containing a cyano group and its properties in a lithium battery electrolyte
AU - Egashira, Minato
AU - Okada, Shigeto
AU - Yamaki, Jun Ichi
AU - Dri, Diego Alejandro
AU - Bonadies, Francesco
AU - Scrosati, Bruno
PY - 2004/11/15
Y1 - 2004/11/15
N2 - A room temperature ionic liquid consisting of N,N,N,N,-cyanomethyl trimethyl ammonium (CTMA) cation and bis(trifluoromethane sulfone)imide (TFSI) anion was newly synthesized, and its electrochemical properties were investigated. This ionic liquid has a melting point of 35°C and an order of conductivity of 10-4 S cm-1. Lithium deposition/ dissolution tests in 0.2 mol dm-3 LiTFSI/CTMATFSI electrolytes showed an improved cycle behavior compared with that of a Li electrolyte based on a tetraalkylammonium ionic liquid without a cyano group. It is suggested that such an improvement may be associated with the formation of a protective film on the lithium surface. Introducing a proper functional group is suggested to be effective to improve the interfacial properties of ionic liquid.
AB - A room temperature ionic liquid consisting of N,N,N,N,-cyanomethyl trimethyl ammonium (CTMA) cation and bis(trifluoromethane sulfone)imide (TFSI) anion was newly synthesized, and its electrochemical properties were investigated. This ionic liquid has a melting point of 35°C and an order of conductivity of 10-4 S cm-1. Lithium deposition/ dissolution tests in 0.2 mol dm-3 LiTFSI/CTMATFSI electrolytes showed an improved cycle behavior compared with that of a Li electrolyte based on a tetraalkylammonium ionic liquid without a cyano group. It is suggested that such an improvement may be associated with the formation of a protective film on the lithium surface. Introducing a proper functional group is suggested to be effective to improve the interfacial properties of ionic liquid.
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U2 - 10.1016/j.jpowsour.2004.06.022
DO - 10.1016/j.jpowsour.2004.06.022
M3 - Article
AN - SCOPUS:8344222851
VL - 138
SP - 240
EP - 244
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
IS - 1-2
ER -