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Issue 27, 2011
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Nanoporous hybrid electrolytes

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Abstract

Oligomer-suspended SiO2–polyethylene glycol nanoparticles are studied as porous media electrolytes. At SiO2 volume fractions, ϕ, bracketing a critical value ϕy ≈ 0.29, the suspensions jam and their mechanical modulus increase by more than seven orders. For ϕ>ϕy, the mean pore diameter is close to the anion size, yet the ionic conductivity remains surprisingly high and can be understood, at all ϕ, using a simple effective medium model proposed by Maxwell. SiO2–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.

Graphical abstract: Nanoporous hybrid electrolytes

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Publication details

The article was received on 01 Dec 2010, accepted on 10 Jan 2011 and first published on 15 Feb 2011


Article type: Paper
DOI: 10.1039/C0JM04171H
Citation: J. Mater. Chem., 2011,21, 10094-10101
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    Nanoporous hybrid electrolytes

    J. L. Schaefer, S. S. Moganty, D. A. Yanga and L. A. Archer, J. Mater. Chem., 2011, 21, 10094
    DOI: 10.1039/C0JM04171H

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