Hydrophobic ionic liquids

Patent · Tue Oct 27 04:00:00 EST 1998

OSTI ID:675800

Koch, V R; Nanjundiah, C; Carlin, R T

Ionic liquids having improved properties for application in non-aqueous batteries, electrochemical capacitors, electroplating, catalysis and chemical separations are disclosed. Exemplary compounds have one of the following formulas shown in a diagram wherein R{sub 1}, R{sub 2}, R{sub 3}, R{sub 4}, R{sub 5}, and R{sub 6} are either H; F; separate alkyl groups of from 1 to 4 carbon atoms, respectively, or joined together to constitute a unitary alkylene radical of from 2 to 4 carbon atoms forming a ring structure converging on N; or separate phenyl groups; and wherein the alkyl groups, alkylene radicals or phenyl groups may be substituted with electron withdrawing groups, preferably F-, Cl-, CF{sub 3}-, SF{sub 5}-, CF{sub 3}S-, (CF{sub 3}){sub 2}CHS- or (CF{sub 3}){sub 3}CS-; and X{sup {minus}} is a non-Lewis acid-containing polyatomic anion having a van der Waals volume exceeding 100 {angstrom}{sup 3}. 4 figs.

• Research Organization: Covalent Associates, Inc
• Sponsoring Organization: USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
• DOE Contract Number: FG02-96ER82149
• Assignee: Covalent Associates Inc., Woburn, MA (United States)
• Patent Number(s): US 5,827,602/A/
• Application Number: PAN: 8-932,931; CNN: Contract F33615-94-C-2469
• OSTI ID: 675800
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
CAPACITORS
CATALYSIS
CHEMICAL COMPOSITION
ELECTRIC BATTERIES
ELECTROLYTES
ELECTROPLATING
MOLECULAR STRUCTURE
SEPARATION PROCESSES