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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 1
BKCSDE 32(1)
January 20, 2011 

 
Title
Study on the cycling performance of Li4Ti5O12 electrode in the ionic liquid electrolytes containing an additive
Author
Jin Hee Kim, Seung Wan Song, Hung Van Hoang, Chil Hoon Doh, Dong Won Kim*
Keywords
Anode, Ionic liquid, Lithium ion battery, Li4Ti5O12, Solid electrolyte interphase
Abstract
The cycling behavior of Li4Ti5O12 electrode in the ionic liquid (IL)-based electrolytes containing 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl) imide and a small amount of additive (vinylene carbonate, ethylene carbonate, fluoroethylene carbonate) was investigated. The Li4Ti5O12 electrode in the IL electrolyte with an additive exhibited reversible cycling behavior with good capacity retention. Electrochemical impedance spectroscopy and FTIR studies revealed that an electrochemically stable solid electrolyte interphase was formed on the Li4Ti5O12 electrode in the presence of vinylene carbonate and ethylene carbonate during cycling.
Page
105 - 108
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