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Please use this identifier to cite or link to this item: http://hdl.handle.net/1813/30460
Title: Nanoporous hybrid electrolytes
Authors: Schaefer, J.L.
Moganty, S.S.
Yanga, D.A.
Archer, L.A.
Keywords: ROYAL SOC CHEMISTRY
THOMAS GRAHAM HOUSE
EFFECTIVE CONDUCTIVITY
ELECTRICAL-PROPERTIES
IONIC-LIQUID
PERFORMANCE
COPOLYMER
CATHODE
CELL
Issue Date: 15-Feb-2011
Publisher: Royal Society of Chemistry
Citation: J. Mater. Chem., 2011,21, 10094-10101
Abstract: Oligomer-suspended SiO(2)-polyethylene glycol nanoparticles are studied as porous media electrolytes. At SiO(2) volume fractions, phi, bracketing a critical value phi(y) approximate to 0.29, the suspensions jam and their mechanical modulus increase by more than seven orders. For phi > phi(y), the mean pore diameter is close to the anion size, yet the ionic conductivity remains surprisingly high and can be understood, at all phi, using a simple effective medium model proposed by Maxwell. SiO(2)-polyethylene glycol hybrid electrolytes are also reported to manifest attractive electrochemical stability windows (0.3-6.3 V) and to reach a steady-state interfacial impedance when in contact with metallic lithium.
Related Version: http://pubs.rsc.org/en/content/articlepdf/2011/jm/c0jm04171h
URI: http://hdl.handle.net/1813/30460
ISSN: 0959-9428
Appears in Collections:Energy and Sustainability Publications

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