Communication-Lithium Sulfonated Polyoxadiazole as a Novel Single-Ion Polymer Electrolyte in Lithium-Ion Batteries

被引：7

作者：

Gao, Huihui ^{[1
]}

Mao, Jianzhao ^{[1
]}

Li, Dazhe ^{[1
]}

Yu, Yuanyuan ^{[1
]}

Yang, Chen ^{[1
]}

Qi, Shikai ^{[1
]}

Liu, Qianli ^{[1
]}

Zhu, Jiadeng ^{[2
]}

Jiang, Mengjin ^{[1
]}

机构：

[1] Sichuan Univ, Coll Polymer Sci & Engn, Chengdu 610065, Sichuan, Peoples R China

[2] Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA 22904 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2020年 / 167卷 / 07期

关键词：

CONDUCTIVITY; MEMBRANES;

D O I：

10.1149/1945-7111/ab6e5c

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A single-ion conductor polymer electrolyte was prepared and the effects of the ratio of isophthalic acid (IPA) to 4, 4'-diphenyl ether dicarboxylic acid (DPE) on the structure and electrochemical properties have been investigated. Results show that all the lithium sulfonated polyoxadiazoles (Li-SPODs) have excellent thermal stability (510 degrees C). The ionic conductivity of the Li-SPOD is 7.2 x 10(-4) S cm(-1) at room temperature when the IPA/DPE ratio is 6/4. A high Coulombic efficiency of 99.1% for the LiFePO4/6/4 li-SPOD SPEs/Li half-cell could be achieved with a capacity retention of 90.63% at a current density of 0.1 C after 25 cycles.

引用

页数：4

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