Molecular Brush with Dense PEG Side Chains: Design of a Well-Defined Polymer Electrolyte for Lithium-Ion Batteries

• DOI: 10.1021/acs.macromol.9b01641
• Publication Date: 2019-09-18T13:55:26Z
• Authors: Shaoqiao Li; Ke Jiang; Jirong Wang; Cai Zuo; Ye Hyang Jo; Dan He; Xiaolin Xie; Zhigang Xue
• Keywords: Side chain

Herein, we designed a series of well-defined bottlebrush-like macromolecules with short and densely grafted poly(ethylene oxide) (PEO) side chains through several controlled radical polymerization methods to prepare solid polymer electrolytes (SPEs). The PEO can work as sensational conductors for lithium salt. Moreover, these own cations linked on the backbone, which facilitate transport Li ions thus improve lithium-ion transference number. prepared SPE exhibits considerable ion conductivity 4.49 × 10–5 S cm–1 at 30 °C owing its specific structure. Furthermore, high capacity excellent cycle performance demonstrate foreseeable application obtained electrolyte in battery.