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Highly Ionic Conductive and Transparent Self-Healing Lithium Salt Elastomers Based on Eutectic Strategy
Chemistry of Materials ( IF 7.2 ) Pub Date : 2022-11-22 , DOI: 10.1021/acs.chemmater.2c01759
Peng Ding 1 , Kai Zhao 2 , Ren’ai Li 3 , PeiSen Sang 1 , Xiaoxin Liang 1 , Kaili Zhang 1 , Xue Liu 1 , Guangxue Chen 1 , Minghui He 1
Affiliation  

Transparent conductive stretchable liquid-free lithium salt elastomers are well suited for the composition of flexible electronics, as they are not subject to the leakage limitation of ionic gels and the water evaporation of hydrogels. However, the quest for stretchable transparent conductive elastomers with high ionic conductivity remains daunting, as current transparent liquid-free lithium salt elastomers have problems, including their low conductivity (<10–1 S m–1) and the release of volatile organic compounds (VOCs) due to the evaporation of the organic solvents during the preparation process. Herein, a new type of transparent, stretchable, self-healing, and ultrahigh ionic conductive liquid-free lithium salt elastomers (LSEs) was produced by adjusting the ratio of two types of lithium salt-type polymerizable deep eutectic solvent (Li-PDES) monomers (lithium salt-type polymerizable deep eutectic solvent monomers) and the rapid photoinitiated copolymerization of mixed Li-PDES monomers. One of the LSEs exhibits the highest ionic conductivity (1.43 S m–1) of all liquid-free lithium salt elastomers reported to date. Owing to their excellent ionic conductivity and simple preparation process, we believe that LSEs with transparency (92.1% at 600 nm) and self-healing capability (91.02% for 48 h at 70 °C) should be more deeply investigated and applied in the field of flexible electronics and energy.

中文翻译:

基于共晶策略的高离子导电透明自愈锂盐弹性体

透明导电可拉伸无液体锂盐弹性体非常适合柔性电子产品的组成,因为它们不受离子凝胶的泄漏限制和水凝胶的水分蒸发。然而,对具有高离子电导率的可拉伸透明导电弹性体的探索仍然令人望而生畏,因为目前的透明无液体锂盐弹性体存在问题,包括它们的低电导率(<10 –1 S m –1) 和由于制备过程中有机溶剂的蒸发而释放的挥发性有机化合物 (VOC)。在此,通过调节两种锂盐型可聚合低共熔溶剂(Li-PDES)的配比,制备了一种新型透明、可拉伸、自修复、超高离子导电无液体锂盐弹性体(LSEs)单体(锂盐型可聚合低共熔溶剂单体)和混合 Li-PDES 单体的快速光引发共聚。其中一种 LSE 表现出最高的离子电导率 (1.43 S m –1) 迄今为止报告的所有无液体锂盐弹性体。由于其优异的离子电导率和简单的制备工艺,我们认为具有透明性(600 nm 时 92.1%)和自愈能力(70 °C 下 48 小时 91.02%)的 LSE 应该得到更深入的研究和应用。柔性电子和能源。
更新日期:2022-11-22
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