A single-ion gel polymer electrolyte based on polymeric lithium tartaric acid borate and its superior battery performance

被引：63
作者：
Wang, Xuejiang [1 ]
Liu, Zhihong [1 ]
Kong, Qingshan [1 ]
Jiang, Wen [1 ]
Yao, Jianhua [1 ]
Zhang, Chuanjian [1 ]
Cui, Guanglei [1 ]
机构：
[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
来源：
SOLID STATE IONICS | 2014年 / 262卷
关键词：
Gel polymer electrolyte; Lithium salt; Ionic conductivity; Single-ion electrolyte; Lithium ion battery; POLYANIONIC SOLID ELECTROLYTES; CONDUCTIVITY; COMPOSITE; STABILITY; MEMBRANES; LIBOB; SALT;
D O I：
10.1016/j.ssi.2013.09.007
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：
A single-ion gel polymer electrolyte of PLTB@PVDF-HFP (polymeric lithium tartaric acid borate@poly(vinylidene fluoride-co-hexafluoropropene)) was prepared and its ionic conductivity was optimized via solvent composition tailoring. It was manifested that the ethylene carbonate/dimethyl carbonate (EC/DMC) swollen PLTB@PVDF-HFP exhibited a superior lithium ionic conductivity at room temperature to that of the traditional liquid electrolyte system (1 M LiPF6/EC/DMC). The Li4Ti6O12/LiFePO4 cells using the EC/DMC swollen PLTB@PVDF-HFP as polymer electrolyte showed stable charge/discharge voltage profiles with small voltage hysteresis, preferable rate capability and excellent cycle performance at room temperature. These superior performances of EC/DMC swollen PLTB@PVDF-HFP could endow this class of gel polymer electrolyte a very promising alternative to state of the art liquid electrolyte system. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：747 / 753
页数：7
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