Metal-air cell with performance enhancing additive
AssigneeArizona Board of Regents, acting for and on behalf of Arizona State University
InventorsCody A. FRIESEN, Daniel BUTTRY
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Abstract
Systems and methods drawn to an electrochemical cell comprising a low temperature ionic liquid comprising positive ions and negative ions and a performance enhancing additive added to the low temperature ionic liquid. The additive dissolves in the ionic liquid to form cations, which are coordinated with one or more negative ions forming ion complexes. The electrochemical cell also includes an air electrode configured to absorb and reduce oxygen. The ion complexes improve oxygen reduction thermodynamics and/or kinetics relative to the ionic liquid without the additive.
Claims20
A method comprising:
- mixing a protic ionic liquid with an aprotic ionic liquid to create an ionically conductive medium comprising negative ions and positive ions, wherein at least one of the positive ions is a proton;
- exposing the ionically conductive medium to oxygen;
- and
- electrochemically reducing the oxygen, wherein electrochemically reducing the oxygen occurs in a metal-air ionic liquid battery comprising a metal electrode and an air electrode.
Dependencies are inferred from the claim text.