Enhanced ionic conductivity and mechanical properties via dynamic -covalent boroxine bonds in solid polymer electrolytes

被引：34

作者：

Li, Sibo ^{[1
,2
]}

Zuo, Cai ^{[1
]}

Jo, Ye Hyang ^{[1
]}

Li, Shaoqiao ^{[1
]}

Jiang, Ke ^{[1
]}

Yu, Liping ^{[1
]}

Zhang, Yong ^{[1
]}

Wang, Jirong ^{[1
]}

Li, Liang ^{[2
]}

Xue, Zhigang ^{[1
,3
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Key Lab Mat Chem Energy Convers & Storage, Minist Educ, Wuhan 430074, Peoples R China

[2] Wuhan Inst Technol, Sch Mat Sci & Engn, Wuhan 430074, Peoples R China

[3] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mold Technol, Wuhan 430074, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2020年 / 608卷

基金：

中国国家自然科学基金;

关键词：

Lithium-ion batteries; Polymer electrolyte; Boroxine; Phototpolymerization; OXIDE) ELECTROLYTES; NETWORK; ELECTRODEPOSITION; SUPPRESSION; TEMPERATURE; BATTERY; STIFF;

D O I：

10.1016/j.memsci.2020.118218

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Herein, we designed the solid polymer electrolytes (SPEs) via the polymerization of poly(ethylene glycol) diacrylate (PEGDA) with different molecular weights under a UV irradiation in the presence of 2-formyl benzene boric acid (PBA)- terminated poly(propylene glycol)-b-poly(ethylene glycol)-b-poly(propylene glycol) (NH2-ED2000-NH2) (diPBA-ED2000). The SPEs with the boroxine structure were obtained by the dehydration and condensation of the diPBA-ED2000. The ionic conductivity and mechanical strength of SPEs with the formed boroxine structure can be effectively enhanced. Moreover, the SPEs with boroxine structure possessed good flexibility, self-supported, healable properties, wide electrochemical window (5.5 V vs. Li+/Li), and improved interfacial stability between the SPE and the Li electrode.

引用

页数：10

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