Influence of Lithium Salts on the Discharge Chemistry of Li-Air Cells.
In this work, we show that the use of a high boiling point ether solvent (tetraglyme) promotes the formation of Li2O2 in a lithium-air cell. However, another major constituent in the discharge product of a Li-air cell contains halides from the lithium salts and C-O from the tetraglyme used as the solvent. This information is critical to the development of Li-air electrolytes, which are stable and promote the formation of the desired Li2O2 products.
†Materials Science and Technology Division and ‡Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
Gabriel M
GM
Veith
†Materials Science and Technology Division and ‡Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
Jagjit
J
Nanda
†Materials Science and Technology Division and ‡Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
Laetitia H
LH
Delmau
†Materials Science and Technology Division and ‡Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
Nancy J
NJ
Dudney
Li ion battery; Li salts; Li−air; SEI; glyme electrolytes