A Novel Phosphate-Based Flame Retardant and Film-Forming Electrolyte Additive for Lithium Ion Batteries

被引：31
作者：
Jin, Zuxi [1 ]
Gao, Haiping [1 ]
Kong, Chan [1 ]
Zhan, Hui [1 ]
Li, Zaoying [1 ]
机构：
[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
来源：
ECS ELECTROCHEMISTRY LETTERS | 2013年 / 2卷 / 07期
基金：
中国国家自然科学基金;
关键词：
NONFLAMMABLE ELECTROLYTES; ELECTROCHEMICAL PERFORMANCE; TRIMETHYL PHOSPHATE; THERMAL-PROPERTIES; SOLVENT;
D O I：
10.1149/2.005307eel
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Bis(2-methoxyethoxy)methylallylphosphonate (BMEMAP) was synthesized as bi-functional additive of flame retardant and film former in electrolytes of ethylene carbonate (EC) and dimethyl carbonate (DMC). The flame retardancy of the additive was characterized by measuring the self-extinguishing time of electrolytes. It is shown that adding 10 vol.% BMEMAP in 1 M LiPF6/EC + DMC (1:1, v/v) can effectively inhibit the burning of electrolytes and provide a wide electrochemical window. Further evaluation indicates that the additive hardly affect the conductivity of electrolyte. The electrochemical tests reveal that the electrolytes with and without BMEMAP have similar electrochemical behavior with LiFePO4 electrode and natural graphite. (C) 2013 The Electrochemical Society. All rights reserved.
引用
收藏
页码：A66 / A68
页数：3
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