A lithium poly(pyromellitic acid borate) gel electrolyte membrane for lithium-ion batteries

被引：0
|
作者：
Guodong Xu
Yubao Sun
Rupesh Rohan
Yunfeng Zhang
Weiwei Cai
Hansong Cheng
机构：
[1] National University of Singapore,Department of Chemistry
[2] China University of Geosciences Wuhan,Sustainable Energy Laboratory
来源：
Journal of Materials Science | 2014年 / 49卷
关键词：
Polymer Electrolyte; LiFePO4; Composite Membrane; High Ionic Conductivity; Trimethyl Borate;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Lithium poly(pyromellitic acid borate) (PPAB) was synthesized via polymerization of lithium tetramethanolatoborate and silylated pyromellitic acid. The synthesized material was characterized by Fourier transformation infrared spectroscopy, 11B nuclear magnetic resonance, scanning electron microscopy, and thermogravimetric analysis. And electrochemical characterizations were carried out on the blended PPAB/PVDF-HFP membrane. The PPAB-based composite membrane exhibits high lithium ionic conductivity, a broad electrochemical window and a high lithium-ion transference number. The battery cells assembled with the PPAB/PVDF-HFP/EC:PC composite membrane as the electrolyte perform reasonably well not only at elevated temperature but also at room temperature with good cyclability and discharge capacity, making the material suitable for applications in lithium-ion batteries.
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页码：6111 / 6117
页数：6
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