含peo -聚氨酯-低聚硅氧烷片段化体系中离子电导率的异常增加

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Theoretical and Experimental Chemistry Pub Date : 2022-03-09 DOI:10.1007/s11237-022-09712-x

V. V. Shevchenko, A. G. Belous, A. V. Stryutsky, L. L. Kovalenko, N. S. Klimenko, M. A. Gumenna, A. M. Pilipenko

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引用次数: 0

摘要

提出了一种以含聚乙烯氧化物(PEO)超分子组织体系节段聚氨酯-节段低聚聚氨酯-LiClO4 (PUU-OUU-LiClO4)为基础制备锂离子电池固体聚合物电解质的方法。与OUU-LiClO4和PUU-LiClO4体系相比，LiClO4的引入导致玻璃化转变温度和离子电导率分别提高了1和2个数量级(60℃时最高可达2.0·10-4 S/cm)，这与锂离子输运机制的变化有关。

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Anomalous Increase in Ionic Conductivity in Peo-Containing System Segmented Polyurethane – Segmented Oligourethane with LiClO4

A method of obtaining a solid polymer electrolyte for lithium-ion batteries based on polyethylene oxide-containing (PEO) supramolecularly organized system segmented polyurethane – segmented oligourethane with LiClO₄(PUU-OUU-LiClO₄) is proposed. The introduction of LiClO₄ into PUU-OUU leads to an extreme increase in the glass transition temperature and ionic conductivity by 1 and 2 orders of magnitude when compared to OUU-LiClO₄ and PUU-LiClO₄ systems (up to 2.0·10^–4 S/cm at 60°C), respectively, which is associated with a change in the lithium-ion transport mechanism.

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来源期刊

Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.