Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 160, Issue 1, Pages A66-A69Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.025301jes
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This manuscript reports the development of a safe and green lithium-ion battery using lithium iron phosphate (LiFePO4) as a positive electrode, graphite (Cgr) as a negative electrode, and an Ionic Liquid (IL) electrolyte solution based on 1-hexyl-3-methylimidazolium bis(trifluoromethanesulfonyl)-imide (C(1)C(6)ImNTf(2)). Vinylene carbonate (VC) was tested as an electrolyte additive. The electrochemical stability of (C(1)C(6)ImNTf(2)) and their binary mixture referred as (Li)(C(1)C(6)ImNTf(2)) were investigated. In addition the electrochemical behavior of the graphite electrode was studied through cyclic voltammetry experiments in the presence and absence of VC co-additive. Complementary cycling tests demonstrated the benefic effect of VC on the charge-discharge performances for the full Lithium ion configuration based on Cgr/LiFePO4. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.025301jes] All rights reserved.
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