Covalently cross-linked polymer stabilized electrolytes with self-healing performance boronic ester bonds

Herein, solid polymer electrolytes (SPEs) were designed and fabricated via the photopolymerization of a macromolecular crosslinker with boronic ester bonds and poly(ethylene glycol) diacrylate (PEGDA) with different molecular weights under UV irradiation in the presence of a photoinitiator. The boro...

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Bibliographic Details
Published in:Polymer chemistry 2020-09, Vol.11 (36), p.5893-592
Main Authors: Li, Sibo, Zuo, Cai, Zhang, Yong, Wang, Jirong, Gan, Huihui, Li, Shaoqiao, Yu, Liping, Zhou, Binghua, Xue, Zhigang
Format: Article
Language:English
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Summary:Herein, solid polymer electrolytes (SPEs) were designed and fabricated via the photopolymerization of a macromolecular crosslinker with boronic ester bonds and poly(ethylene glycol) diacrylate (PEGDA) with different molecular weights under UV irradiation in the presence of a photoinitiator. The boronic ester-based crosslinker was synthesized via the dehydration reaction of ortho -aminomethyl-phenylboronic acid-terminated poly(propylene glycol)- b -poly(ethylene glycol)- b -poly(propylene glycol) and 2,3-dihydroxypropyl methacrylate. The covalently cross-linked polymer stabilized electrolytes (PSEs) containing boronic ester bonds possessed improved ionic conductivity, self-healing properties, and a wide electrochemical window (5.3 V vs. Li + /Li). This article reported a facile fabrication of self-healing solid polymer electrolytes via boronic ester bonds.
ISSN:1759-9954
1759-9962
DOI:10.1039/d0py00728e