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Issue 3, 2015
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Nanoscale, conformal polysiloxane thin film electrolytes for three-dimensional battery architectures

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Abstract

We report the development of nanoscale (10–40 nm), conformal thin film electrolytes realized by doping lithium ions (Li+) into poly-(tetravinyltetramethylcyclotetrasiloxane) (PV4D4) films, which were synthesized by initiated chemical vapor deposition (iCVD). This is the first time nanoscale films with siloxane ring moieties, which are excellent electrical insulators, have been demonstrated as room temperature ionic conductors. The films exhibit minimal changes in morphology and thickness during lithiation and are also demonstrated to be easily scalable over large areas. We show that the conformal nature of the iCVD polymerization process realizes complete coverage of nanostructured electrodes like nanowires by a uniform, continuous, and pinhole-free thin film, making the polysiloxane films attractive as a novel class of nanoscale electrolytes for the emerging field of three-dimensional (3D) batteries.

Graphical abstract: Nanoscale, conformal polysiloxane thin film electrolytes for three-dimensional battery architectures

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Article information


Submitted
22 Dec 2014
Accepted
09 Jan 2015
First published
14 Jan 2015

Mater. Horiz., 2015,2, 309-314
Article type
Communication
Author version available

Nanoscale, conformal polysiloxane thin film electrolytes for three-dimensional battery architectures

N. Chen, B. Reeja-Jayan, J. Lau, P. Moni, A. Liu, B. Dunn and K. K. Gleason, Mater. Horiz., 2015, 2, 309
DOI: 10.1039/C4MH00246F

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