Thermal stability of lithium-ion battery electrolytes

被引：301

作者：

Ravdel, B

Abraham, KM

Gitzendanner, R

DiCarlo, J

Lucht, B

Campion, C

机构：

[1] Lith Inc, Pawcatuck, CT 06379 USA

[2] Univ Rhode Isl, Dept Chem, Kingston, RI 02881 USA

来源：

JOURNAL OF POWER SOURCES | 2003年 / 119卷

关键词：

lithium-ion battery; organic carbonate based electrolyte; electrolyte decomposition;

D O I：

10.1016/S0378-7753(03)00257-X

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：

The thermal decomposition of LiPF6 in the solid state and as solutions in dialkyl carbonates has been investigated. The thermal decomposition of LiPF6 was investigated with differential scanning calorimatry (DSC) suggesting decomposition to LiF and PF5. In solution, PF5 reacts with dialkylcarbonates to form a variety of decomposition products including carbon dioxide (CO2), ethers (R2O), alkylfluorides (RF), phosphorus oxyfluoride (OPF3) and fluorophosphates (OPF2OR, OPF(OR)(2)). The structure of the decomposition products are supported by nuclear magnetic resonance (NMR) spectroscopy and gas chromatography with mass selective detection (GC-MS). (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：805 / 810

页数：6

共 9 条

[1] Thermal stability of LiPF6-EC:EMC electrolyte for lithium ion batteries [J].