Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 162, Issue 6, Pages A1094-A1101Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0011507jes
Keywords
-
Funding
- German Federal Ministry of Education and Research (BMBF) [03 x 4623D]
Ask authors/readers for more resources
Solid electrolyte interphase (SEI) forming electrolyte additives are able to improve the performance of lithium ion and lithium metal batteries. In this work, the electrochemical performance of graphite and lithium metal, when using 1 M LiTESI (lithium bis(trifluoro-methanesulfonyl)imide) in tetraethylene glycol dimethyl ether (TEGDME) with and without the addition of different amounts of fluoroethylene carbonate (FEC), is compared. It is shown that 1 M LiTESI in TEGDME without additive is not able to form an effective SEI on graphite and that this electrolyte is also continuously decomposing on lithium metal. By the addition of >2 wt% FEC, an effective SEI is formed on both, lithium metal and graphite, enabling good cycling stability. Furthermore, 1 M LiTESI in TEGDME with FEC as additive is a suitable electrolyte for lithium iron phosphate (LFP) based lithium ion batteries. (C) 2015 The Electrochemical Society. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available