Skip to Content
Find More Like This
Return to Search

Long life lithium batteries with stabilized electrodes

United States Patent

March 24, 2009
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
The present invention relates to non-aqueous electrolytes having electrode stabilizing additives, stabilized electrodes, and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. In some embodiments the additives include a substituted or unsubstituted cyclic or spirocyclic hydrocarbon containing at least one oxygen atom and at least one alkenyl or alkynyl group. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes or olivine or carbon-coated olivine electrodes, the new electrolytes provide batteries with improved calendar and cycle life.
Amine; Khalil (Downers Grove, IL), Liu; Jun (Naperville, IL), Vissers; Donald R. (Naperville, IL), Lu; Wenquan (Darien, IL)
U Chicago Argonne LLC (Chicago, IL)
11/ 297,120
December 8, 2005
GOVERNMENT INTERESTS This invention was made with Government support under Contract No. W-31-109-ENG-38 awarded by the Department of Energy. The Government has certain rights in this invention.