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A multifunctional polymer electrolyte enables ultra-long cycle-life in a high-voltage lithium metal battery

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Abstract

In this article, we demonstrated for the first time an ultra-strong bacterial cellulose supported poly(methyl vinyl ether-alt-maleic anhydride) as a multifunctional polymer electrolyte for a 4.45 V-class LiCoO2 lithium metal battery. Such a polymer electrolyte based LiCoO2 lithium metal battery delivered significant capacity retention (85% retention after 700 cycles) at 60 °C. A more thorough investigation elucidated that it played multiple roles in enhancing the electro-oxidative resistance and reversible lithium plating/stripping of a LiCoO2 lithium metal cell. These extraordinary features open up a new avenue for the fabrication of advanced polymer electrolytes for high-voltage lithium metal cells.

Graphical abstract: A multifunctional polymer electrolyte enables ultra-long cycle-life in a high-voltage lithium metal battery

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Publication details

The article was received on 28 Nov 2017, accepted on 23 Feb 2018 and first published on 08 Mar 2018


Article type: Communication
DOI: 10.1039/C7EE03365F
Citation: Energy Environ. Sci., 2018, Advance Article
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    A multifunctional polymer electrolyte enables ultra-long cycle-life in a high-voltage lithium metal battery

    T. Dong, J. Zhang, G. Xu, J. Chai, H. Du, L. Wang, H. Wen, X. Zang, A. Du, Q. Jia, X. Zhou and G. Cui, Energy Environ. Sci., 2018, Advance Article , DOI: 10.1039/C7EE03365F

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