Methods of preparing hetero ionic complexes, and ionic liquids from bisulfate salts of heteroatomic compounds using dialkylcarbonates as a primary quaternizing reactant are disclosed. Also disclosed are methods of making electrochemical cells comprising the ionic liquids, and an electrochemical cell comprising an alkaline electrolyte and a hetero ionic complex additive.
GOVERNMENT FUNDING SUPPORT
 This invention was made with U.S. government support under Contract No. DB-AR-00000038 awarded by the Department of Energy. The government has certain rights in the invention.