An electrochemical microactuator based on highly textured LiCoO2

An electrochemical microactuator based on highly textured LiCoO2
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基于高织构LiCoO2的电化学微执行器

DOI:
10.1016/j.snb.2012.08.079
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发表时间:
2013
期刊:
Chemical
影响因子:
--
通讯作者:
Zhang H
Zhang H
中科院分区:
--
文献类型:
--
作者:
Zhang H

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在本文中,我们展示了一种新的电化学驱动器的基础上的微柱的插层化合物LiCoO2诱导晶体织构(Lotgering因子f=0.96),以提高致动应变的阵列。通过热压烧结和随后的切割来制造高度纹理化的LiCoO2柱,并且人为的纹理促进了电化学锂化和由此产生的纵向方向上的致动应变。与传统的驱动器材料如压电陶瓷相比,LiCoO2微柱阵列在低电压(<5V)下显示出高近一个数量级的驱动应变(1.2%)。本文的概念论证为新型智能材料插层化合物的设计和应用提供了基础。
In this paper we demonstrate a novel electrochemical actuator based on an array of micro-pillars of intercalation compound LiCoO2with induced crystallographic texture (Lotgering factor f=0.96) to enhance actuation strain. The highly textured LiCoO2posts 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 LiCoO2showed an almost one order higher actuation strain (1.2%) at a low applied voltage (<5V). The conceptual demonstration outlined in this paper provides a foundation for the design and application of intercalation compounds as novel smart materials.
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