Abstract
The electrochemical properties of a sulfur positive electrode in equimolar glyme-Li salt mixtures were investigated. Cyclic voltammograms indicated that the insertion of Li into the sulfur/carbon composite electrode took place over at least three steps during the reduction process. In contrast, the broad anodic current suggested that the electrode kinetics for the extraction of Li were relatively slow. Stable charge-discharge operation of the Li-S cell consisting of a Li negative electrode with [Li(triglyme)][bis(trifluoromethanesulfonyl)amide] as the electrolyte was achieved at 800 cycles. This indicates that dissolution of Li2Sx into the electrolyte was effectively suppressed in this system.
| Original language | English |
|---|---|
| Pages (from-to) | 680-682 |
| Number of pages | 3 |
| Journal | Electrochemistry |
| Volume | 85 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2017 |
| Externally published | Yes |
Fingerprint
Keywords
- Battery Performance
- Lithium Solvate Ionic Liquid
- Lithium-sulfur Battery
ASJC Scopus subject areas
- Electrochemistry
Cite this
Long-cycle-life lithium-sulfur batteries with lithium solvate ionic liquids. / Seki, Shiro; Serizawa, Nobuyuki; Takei, Katsuhito; Umebayashi, Yasuhiro; Tsuzuki, Seiji; Watanabe, Masayoshi.
In: Electrochemistry, Vol. 85, No. 10, 2017, p. 680-682.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Long-cycle-life lithium-sulfur batteries with lithium solvate ionic liquids
AU - Seki, Shiro
AU - Serizawa, Nobuyuki
AU - Takei, Katsuhito
AU - Umebayashi, Yasuhiro
AU - Tsuzuki, Seiji
AU - Watanabe, Masayoshi
PY - 2017
Y1 - 2017
N2 - The electrochemical properties of a sulfur positive electrode in equimolar glyme-Li salt mixtures were investigated. Cyclic voltammograms indicated that the insertion of Li into the sulfur/carbon composite electrode took place over at least three steps during the reduction process. In contrast, the broad anodic current suggested that the electrode kinetics for the extraction of Li were relatively slow. Stable charge-discharge operation of the Li-S cell consisting of a Li negative electrode with [Li(triglyme)][bis(trifluoromethanesulfonyl)amide] as the electrolyte was achieved at 800 cycles. This indicates that dissolution of Li2Sx into the electrolyte was effectively suppressed in this system.
AB - The electrochemical properties of a sulfur positive electrode in equimolar glyme-Li salt mixtures were investigated. Cyclic voltammograms indicated that the insertion of Li into the sulfur/carbon composite electrode took place over at least three steps during the reduction process. In contrast, the broad anodic current suggested that the electrode kinetics for the extraction of Li were relatively slow. Stable charge-discharge operation of the Li-S cell consisting of a Li negative electrode with [Li(triglyme)][bis(trifluoromethanesulfonyl)amide] as the electrolyte was achieved at 800 cycles. This indicates that dissolution of Li2Sx into the electrolyte was effectively suppressed in this system.
KW - Battery Performance
KW - Lithium Solvate Ionic Liquid
KW - Lithium-sulfur Battery
UR - http://www.scopus.com/inward/record.url?scp=85032205041&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85032205041&partnerID=8YFLogxK
U2 - 10.5796/electrochemistry.85.680
DO - 10.5796/electrochemistry.85.680
M3 - Article
AN - SCOPUS:85032205041
VL - 85
SP - 680
EP - 682
JO - Electrochemistry
JF - Electrochemistry
SN - 1344-3542
IS - 10
ER -