Cited 21 time in webofscience Cited 23 time in scopus

Fluorinated Carbonate-Based Electrolyte for High-Voltage Li(Ni0.5Mn0.3Co0.2)O-2/Graphite Lithium-Ion Battery

Title
Fluorinated Carbonate-Based Electrolyte for High-Voltage Li(Ni0.5Mn0.3Co0.2)O-2/Graphite Lithium-Ion Battery
Authors
Im, JinsolLee, JieunRyou, Myung-HyunLee, Yong MinCho, Kuk Young
DGIST Authors
Lee, Yong Min
Issue Date
2017
Citation
Journal of the Electrochemical Society, 164(1), 6381-6385
Type
Article
Article Type
Article; Proceedings Paper
Keywords
PERFORMANCECELLSADDITIVESCATHODESSURFACE
ISSN
0013-4651
Abstract
A stable electrolyte system at a charge voltage over 4.5 V is the key to successfully obtaining higher energy density by raising the charging cutoff voltage. We demonstrate a fluorinated electrolyte (1 M LiPF6 fluoroethylene carbonate (FEC) and methyl (2,2,2-trifluoroethyl) carbonate (FEMC) (FEC/FEMC = 1/9, v/v)) for a high-voltage LiNi0.5Mn0.3Co0.2O2/graphite system. The stability of the fluorinated electrolyte for the LiNi0.5Mn0.3Co0.2O2 (NMC532) cathode was investigated using scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy. The charge-discharge performance of the fluorinated electrolyte was superior to the corresponding non-fluorinated electrolyte system at a charging cutoff voltage of 4.7 V. (C) The Author(s) 2017. Published by ECS. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/6551
DOI
10.1149/2.0591701jes
Publisher
Electrochemical Society, Inc.
Related Researcher
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringBattery Materials & Systems LAB1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE