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.
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页数：10
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