Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 22, Issue -, Pages 29-32Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2012.05.022
Keywords
Lithium ion batteries; Polymer electrolyte; Single-ion conductor; Ionic conductivity
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Funding
- MOST [2010DFA61770]
- STCSM
- NSFC [21073046]
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A novel single-ion polymer electrolyte, LiPAAOB (lithium oxalate polyacrylic acid borate), was prepared with different ratio of polyacrylic acid, boric acid, lithium hydroxide and oxalic acid. The obtained membranes were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetry and differential thermal analysis. After absorbing 3% solvent (propylene carbonate), the as-prepared LiOPAAB presents a single ion conductive behavior. Its ionic conductivity at ambient temperature can be up to 2.3 x 10(-6) S cm(-1) and electrochemical window can be stable up to 7.0 V (vs. Li+/Li), which is of great attraction for 5 V lithium ion batteries with high energy density. (C) 2012 Elsevier B.V. All rights reserved.
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