Catalytic cathode for a lithium-oxygen battery
AssigneeUchicago Argonne, LLC
InventorsXiaoqiao Zeng, Khalil Amine, Jun Lu, Yuanyuan Guo
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Abstract
A metal-air battery includes an anode; a low-dimensional catalyst cathode; and an electrolyte; wherein: the low-dimensional catalyst cathode comprises a functional metal layer on a carbon support overcoated with a catalyst layer; the electrolyte comprises an aprotic solvent that is an ether-based solvent, a fluorinated ether-based solvent, an oligo (ethylene oxide) solvent, or a mixture of any two or more thereof; and the electrolyte is free of carbonate solvents.
Claims20
A metal-air battery comprising:
- an anode;
- a low-dimensional catalyst cathode;
- and
- an electrolyte comprising a salt and an aprotic solvent;
- wherein:
- the low-dimensional catalyst cathode comprises a functional metal layer on a carbon support;
- a catalyst layer at least partially overlaying the functional metal layer;
- the aprotic solvent comprises an ether-based solvent, a fluorinated ether-based solvent, an oligo (ethylene oxide) solvent, or a mixture of any two or more thereof;
- and
- the electrolyte is free of carbonate solvents.
A low-dimensional catalyst cathode comprising a catalyst layer overlaying a functional metal layer on a carbon support, wherein the low-dimensional catalyst cathode is a 2D or 0D catalyst cathode.
A method of forming a low-dimensional catalyst cathode, the method comprising:
- selecting a cathode layer material and a functional metal layer material, wherein the functional metal layer material dewets the cathode layer material;
- depositing the functional metal layer material on a carbon support;
- and
- depositing the cathode layer material on at least a portion of the functional metal layer material on the carbon support.
Dependencies are inferred from the claim text.