Hexamethylphosphoramide as a flame retarding additive for lithium-ion battery electrolytes

Authors

Suzette Izquierdo-Gonzales, University of Rhode Island
Wentao Li, University of Rhode Island
Brett L. Lucht, University of Rhode Island

Document Type

Article

Date of Original Version

9-3-2004

Abstract

Hexamethylphosphoramide (HMPA) was investigated as a flame retarding additive for lithium-ion batteries. The flammability, electrochemical stability, conductivity, and cycling performance of electrolytes containing HMPA were studied. The addition of HMPA to electrolytes comprising solutions of LiPF 6 in organic carbonates provided a significant reduction in the flammability of the electrolyte. However, the HMPA caused a slight decrease in the conductivity and electrochemical stability window of the electrolyte. Cycling performance of coin cells containing HMPA modified electrolytes was diminished. © 2004 Elsevier B.V. All rights reserved.

Publication Title, e.g., Journal

Journal of Power Sources

Volume

135

Issue

1-2

Citation/Publisher Attribution

Izquierdo-Gonzales, Suzette, Wentao Li, and Brett L. Lucht. "Hexamethylphosphoramide as a flame retarding additive for lithium-ion battery electrolytes." Journal of Power Sources 135, 1-2 (2004): 291-296. doi: 10.1016/j.jpowsour.2004.04.011.