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Issue 10, 2019
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Porous covalent organic frameworks for high transference number polymer-based electrolytes

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Abstract

While solid polymer electrolytes are poised to be the key component of next-generation solid-state batteries, the low Li+ transference number of the polymer electrolytes limits their practical applications. Here, porous boron-containing covalent organic frameworks with different surface areas were synthesized and employed as functional additives for enhancing the Li+ transference number of the polymer electrolytes. The boron-containing frameworks enable strong adsorption of the anions of the lithium salt, leading to a significantly enhanced Li+ transference number of the polymer electrolyte containing COF additives. It is observed that solid-state cells assembled with the COF-containing polymer electrolytes exhibited remarkably decreased overpotentials and enhanced rate performances, which opens up new ways to apply porous organics in next-generation solid-state batteries.

Graphical abstract: Porous covalent organic frameworks for high transference number polymer-based electrolytes

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Publication details

The article was received on 02 Nov 2018, accepted on 07 Jan 2019 and first published on 07 Jan 2019


Article type: Communication
DOI: 10.1039/C8CC08725C
Citation: Chem. Commun., 2019,55, 1458-1461

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    Porous covalent organic frameworks for high transference number polymer-based electrolytes

    D. Dong, H. Zhang, B. Zhou, Y. Sun, H. Zhang, M. Cao, J. Li, H. Zhou, H. Qian, Z. Lin and H. Chen, Chem. Commun., 2019, 55, 1458
    DOI: 10.1039/C8CC08725C

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