Year: 2005
Type: article
Abstract: Thermal stability of lithium-ion battery electrolytes composed of in a mixture of organic carbonates was probed. Generation of via the thermal dissociation of is the primary source of thermal decomposition. It was found that the addition of low concentrations (3-12%) of Lewis basic additives provides a dramatic increase in the thermal stability of the electrolyte. The increased stability is linked to the formation of base: complexes which reversibly sequester , preventing the decomposition of the electrolyte. Lewis bases investigated include pyridine, hexamethoxycyclotriphosphazene, and hexamethylphosphoramide. Our results can serve as a valuable model for stabilizing organic electrolytes against thermal decomposition initiated by Lewis acids.
DOI: 10.1149/1.1926651
Institution: University of Rhode Island
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2005140386