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Title: Metal-air cell comprising an electrolyte with a room temperature ionic liquid and hygroscopic additive

An electrochemical cell comprising an electrolyte comprising water and a hydrophobic ionic liquid comprising positive ions and negative ions. The electrochemical cell also includes an air electrode configured to absorb and reduce oxygen. A hydrophilic or hygroscopic additive modulates the hydrophobicity of the ionic liquid to maintain a concentration of the water in the electrolyte is between 0.001 mol % and 25 mol %.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1150708
Assignee:
ARPA-E
Patent Number(s):
8,808,929
Application Number:
13/085,714
Contract Number:
AR-00000038
Research Org:
ARPA-E (USDOE Advanced Research Projects Agency - Energy (ARPA-E))
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Works referenced in this record:

Lithium-air batteries using hydrophobic room temperature ionic liquid electrolyte
journal, August 2005

Novel zinc ion conducting polymer gel electrolytes based on ionic liquids
journal, December 2005

Mixed ionic liquid as electrolyte for lithium batteries
journal, August 2005