Lithium insertion in graphite from ternary ionic liquid-lithium salt electrolytes: II. Evaluation of specific capacity and cycling efficiency and stability at room temperature

被引：118

作者：

Lux, Simon F. ^{[1
]}

Schmuck, Martin ^{[2
]}

Appetecchi, Giovanni B. ^{[3
]}

Passerini, Stefano ^{[1
]}

Winter, Martin ^{[1
]}

Balducci, Andrea ^{[1
]}

机构：

[1] Univ Munster, Inst Chim Phys, D-48149 Munster, Germany

[2] Graz Univ Technol, Inst Chem Technol Inorgan Mat, A-8010 Graz, Austria

[3] TER DEPT, Energia Ambiente ENEA, Ente Nuove Tecnol, I-00123 Rome, Italy

来源：

JOURNAL OF POWER SOURCES | 2009年 / 192卷 / 02期

关键词：

N-Alkyl-N-methylpyrrolidinium; FSI; TFSI; Ionic liquid; Graphite; Lithium batteries; POLYMER ELECTROLYTE; BASE;

D O I：

10.1016/j.jpowsour.2009.02.066

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper we report the results about the use of ternary room temperature ionic liquid-lithium salt mixtures as electrolytes for lithium-ion battery systems. Mixtures of N-methyl-N-propyl pyrrolidinium bis(fluorosulfonyl) imide, PYR13FSI, and N-butyl-N-methylpyrrolidinium bis(trifluoromethansulfonyl) imide, PYR14TFSI, with lithium hexafluorophosphate, LiPF6 and lithium bis(trifluoromethansulfonyl) imide, LiTFSI, containing 5 wt.% of vinylene carbonate (VC) as additive, have been used in combination with a commercial graphite, KS6 TIMCAL. The performance of the graphite electrodes has been considered in term of specific capacity, cycling efficiency and cycling stability. The results clearly show the advantage of the use of ternary mixtures on the performance of the graphite electrode. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：606 / 611

页数：6

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