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Nanocomposite Based Electrolytes for Lithium-Ion Batteries

Published online by Cambridge University Press:  10 February 2011

M.W. Riley ,
P.S. Fedkiw  and
S.A. Khan
M.W. Riley
Affiliation:
Dept. of Chem. Engr., Box 7905, North Carolina State University, Raleigh, NC 27695-7905
P.S. Fedkiw
Affiliation:
Dept. of Chem. Engr., Box 7905, North Carolina State University, Raleigh, NC 27695-7905
S.A. Khan
Affiliation:
Dept. of Chem. Engr., Box 7905, North Carolina State University, Raleigh, NC 27695-7905
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Abstract

Nanocomposite electrolytes based on lithium hectorite (LiHect) clay dispersed in highdielectric organic solvents such as ethylene carbonate (EC) and propylene carbonate (PC) are shown to exhibit room-temperature conductivities exceeding 10−4 S/cm. The LiHect-based composites reveal lithium ion transference numbers of ∼0.8, as measured by the steady-state current method. In addition, dynamic rheological techniques show this system to be mechanically stable with elastic modulus G' exceeding 107 dynes/cm 2 and yield stress exceeding 104 dynes/cm2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 575: Symposium CC – New Materials for Batteries & Fuel Cells , 1999 , 137
Copyright
Copyright © Materials Research Society 2000

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References

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