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Flexible, self-healing and highly stretchable polymer electrolyte via quadruple hydrogen bonding for lithium-ion batteries

Abstract

Polymer electrolytes are envisioned to be promising alternatives to their liquid counterparts in lithium-ion batteries as they are able to address the electrolyte inflammability and leakage issue. However, polymer electrolytes usually suffer from disappointing crack or breakage, which could lead to short circuit and bring severe safety issues. Herein, we propose a paradigm to address those problems in which the polymer electrolyte is formed by physically cross-linked network via ureidopyrimidinone (UPy) contained brush-like poly(ethylene glycol) chains. The formed novel polymer electrolyte is flexible and able to provide a solution to the fast intrinsic self-healability and high stretchability. It can heal the cut damage within 2 hours under ambient condition without any external stimulus and can be stretched to more than 20 times length without break. Furthermore, the novel polymer electrolyte exhibits excellent interfacial stability with electrodes, resulting in high performance batteries with stable reversible electrochemical reaction and cycling.

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Publication details

The article was received on 28 Feb 2018, accepted on 05 Apr 2018 and first published on 08 Apr 2018


Article type: Paper
DOI: 10.1039/C8TA01907J
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Flexible, self-healing and highly stretchable polymer electrolyte via quadruple hydrogen bonding for lithium-ion batteries

    B. Zhou, D. He, J. Hu, Y. S. Ye, H. Peng, X. Zhou, X. Xie and Z. Xue, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA01907J

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