A novel flame retardant and film-forming electrolyte additive for lithium ion batteries

被引：59

作者：

Chen, Shiyu ^{[1
,2
]}

Wang, Zhaoxiang ^{[1
]}

Zhao, Hailei ^{[2
]}

Qiao, Hongwei ^{[3
]}

Luan, Helin ^{[3
]}

Chen, Liquan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100190, Peoples R China

[2] Beijing Univ Sci & Technol, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[3] Beijing Gen Res Inst Min & Met, Beijing 100044, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2009年 / 187卷 / 01期

关键词：

Allyl tris(2,2,2-trifluoroethyl) carbonate (ATFEC); Flame retardant; Film-forming; Electrolyte additive; Lithium ion battery; METHYL NONAFLUOROBUTYL ETHER; NONFLAMMABLE ELECTROLYTE; PHOSPHATE; SOLVENT;

D O I：

10.1016/j.jpowsour.2008.10.091

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：

Allyl tris(2,2,2-trifluoroethyl) carbonate (ATFEC) was synthesized as a bi-functional additive of flame retardant and film former in electrolytes for lithium ion batteries (LIBs). The name retardancy of the additive was characterized with differential scanning calorimetry (DSC) and self-extinguishing time (SET). It is shown that adding 1 vol.% ATFEC in 1 M LiPF6/Propylene carbonate (PC) can effectively enhance the thermal stability of the electrolyte and suppress the co-intercalation of PC into the graphitic anode. Further evaluation indicates that the additive hardly affect the conductivity of electrolyte. These support the feasibility of using ATFEC as an additive on formulating an electrolyte with multiple functions Such as film-forming enhancement, high thermal stability and high ionic conductivity. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：229 / 232

页数：4

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