Lanthanum-based perovskite oxide electrode material for electrochemical energy storage applications
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMuhammad Ashraf Gondal, Mujahid Mustaqeem, Ahmar Ali
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Abstract
A perovskite with a formula LaMnxRuyNi1−(x+y)O3 is disclosed, where x is from 0.02 to 0.08 and y is from 0.08 to 0.02. The perovskite has a morphology of spherical particles with an oxidation state of Mn and Ru both as +3. The perovskite can be used as a coating on the electrode. The resulting perovskite-coated electrode exhibits excellent electrochemical properties in an asymmetric supercapacitor, proving that the perovskite is an ideal electrode material.
Claims19
A perovskite having a formula:
- LaMnxRuyNi1−(x+y)O3,
- wherein x is from 0.02 to 0.08 and y is from 0.08 to 0.02.
A LaMnxRuyNi1−(x+y)O3 electrode, comprising:
- a nickel foam;
- and
- a perovskite coating, having a formula of LaMnxRuyNi1−(x+y)O3, wherein x is from 0.02 to 0.08 and y is from 0.08 to 0.02, and
- wherein the perovskite coating is present on a surface of the nickel foam.
An asymmetric supercapacitor, comprising:
- an anode, having a layer of a perovskite coated on an anode copper foil substrate,
- wherein the perovskite has a formula of LaMnxRuyNi1−(x+y)O3, where x is from 0.02 to 0.08 and y is from 0.08 to 0.02;
- a cathode, having a layer of an activated carbon coated on a cathode copper foil substrate;
- and
- an electrolyte, comprising 1-Methyl-1-propylpiperidinium bis(trifluoromethylsulfonyl) imide,
- wherein the anode and the cathode are separated by a membrane containing the electrolyte.
Dependencies are inferred from the claim text.