A novel polymer electrolyte with improved high-temperature-tolerance up to 170 °C for high-temperature lithium-ion batteries

被引：65

作者：

Li, Yan-Hua ^{[1
,2
]}

Wu, Xing-Long ^{[1
,2
]}

Kim, Jee-Hoon ^{[3
]}

Xin, Sen ^{[1
,2
]}

Su, Jing ^{[1
,2
]}

Yan, Yang ^{[1
,2
]}

Lee, Jong-Sook ^{[3
]}

Guo, Yu-Guo ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China

[3] Chonnam Natl Univ WCU, Sch Mat Sci & Engn, Kwangju 500757, South Korea

来源：

JOURNAL OF POWER SOURCES | 2013年 / 244卷

基金：

中国国家自然科学基金;

关键词：

Polymer electrolyte; Ionic conductivity; High-temperature lithium-ion battery; Polyimide; Polyethylene oxide; PERFORMANCE; STORAGE; CARBON; LIBOB; SALT;

D O I：

10.1016/j.jpowsour.2013.01.148

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, a new kind of composite polymer electrolyte has been successfully prepared by casting lithium bis(oxalate)borate succinonitrile polyethylene oxide (LiBOB-SN-PEO) polymer electrolyte solution into porous polyimide (PI) nanofibrous films. The obtained LiBOB-SN-PEO- PI composite polymer electrolyte has been characterized by X-ray diffraction, scanning electron microscopy, differential scanning calorimetry and electrochemical impedance spectroscopy technologies in detail. It is found that the interlaced PI fibres in the framework play an important role in achieving a superior high-temperature-tolerance characteristic up to 170 degrees C for the LiBOB-SN-PEO-PI composite polymer electrolyte, which is much higher than that (ca. 100 degrees C) of traditional PEO-based electrolytes. The composite polymer electrolyte also exhibits outstanding high-temperature stability, ensuring a long-term service life in high-temperature lithium-ion batteries. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：234 / 239

页数：6

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