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An electrochemical microactuator based on highly textured LiCoO2

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posted on 08.06.2015, 13:19 by Hongtao Zhang, Patrick S. Grant
In this paper we demonstrate a novel electrochemical actuator based on an array of micro-pillars of intercalation compound LiCoO2 with induced crystallographic texture (Lotgering factor f = 0.96) to enhance actuation strain. The highly textured LiCoO2 posts were fabricated by hot-press sintering and subsequent dicing, and the contrived texture facilitated both electrochemical lithiation and resulting actuation strain in the longitudinal direction. Compared with traditional actuator materials, such as piezoceramics, the micro-pillar array of LiCoO2 showed an almost one order higher actuation strain (1.2%) at a low applied voltage (<5 V). The conceptual demonstration outlined in this paper provides a foundation for the design and application of intercalation compounds as novel smart materials.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Sensors and Actuators B: Chemical

Volume

176

Pages

52 - 57

Citation

ZHANG, H. and GRANT, P.S., 2012. An electrochemical microactuator based on highly textured LiCoO2. Sensors and Actuators B: Chemical, 176, pp.52-57

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2012

Notes

This paper was accepted for publication in Sensors and Actuators B: Chemical. The final published version is available at: http://dx.doi.org/10.1016/j.snb.2012.08.079

ISSN

0925-4005

Language

en

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