Gel electrolytes based on lithium modified silica nano-particles

Sun, J., Bayley, P., MacFarlane, D. R. and Forsyth, M. 2007, Gel electrolytes based on lithium modified silica nano-particles, Electrochimica acta, vol. 52, no. 24, pp. 7083-7090.

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Title Gel electrolytes based on lithium modified silica nano-particles
Author(s) Sun, J.
Bayley, P.
MacFarlane, D. R.
Forsyth, M.
Journal name Electrochimica acta
Volume number 52
Issue number 24
Start page 7083
End page 7090
Publisher Elsevier Science Pub. Co.
Place of publication New York, N.Y.
Publication date 2007-08-01
ISSN 0013-4686
1873-3859
Keyword(s) lithium modified silica
nano-particles
gel electrolytes
ionic conductivity
solid state NMR
cyclic voltammetry
Summary In this work lithium modified silica (Li-SiO2) nano-particles were synthesized and used as a single ion lithium conductor source in gel electrolytes. It was found that Li-SiO2 exhibited good compatibility with DMSO, DMA/EC (a mixture of N,N-dimethyl acetamide and ethylene carbonate) and the ionic liquid, N-methyl-N-propyl pyrrolidinium bis(trifluoromethylsulfonyl) amide ([C3mpyr][NTf2]). Several gel electrolytes based on Li-SiO2 were obtained. These gel electrolytes were investigated by DSC, solid state NMR, conductivity measurements and cyclic voltammetry. Conductivities as high as 10−3 S/cm at room temperature were observed in these nano-particle gel electrolytes. The results of electrochemical tests showed that some of these materials were promising for using as lithium conductive electrolytes in electrochemical devices, with high lithium cycling efficiency evident.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2007, Elsevier Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030260

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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