Energy storage device and supercapacitor
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMuhammad Ashraf, Muhammad Nawaz Tahir, Nisar Ullah, Syed Shaheen Shah, Ibrahim Khan
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Abstract
An asymmetric nanocomposite supercapacitor and a method of making the asymmetric nanocomposite supercapacitor. The asymmetric nanocomposite supercapacitor includes a negative electrode with monoclinic tungsten oxide (m-WO3) nanoplates, and a binding compound coated on one face of a substrate, and a positive electrode with a carbonaceous material and a binding compound coated on one face of a substrate. Where the face of the positive electrode and the face of the negative electrode coated with the carbonaceous material and m-WO3 nanoplates, respectively, are separated by and in direct contact with a porous separator.
Claims15
An energy storage device, comprising:
- a plurality of electric charge supercapacitors connected in parallel;
- wherein each of the electric charge supercapacitors is an asymmetric nanocomposite supercapacitor, comprising:
- a first electrode;
- a second electrode;
- a porous separator between the first and second electrodes;
- wherein the porous separator is coated with an electrolyte and is at least one selected from the group consisting of a polypropylene membrane and a glass fiber membrane;
- wherein the first electrode comprises:
- a first substrate at least partially coated on one face with a first mixture of a first binding compound and at least one carbonaceous material selected from the group consisting of graphite, graphene, activated carbon, reduced graphene oxide, and highly reduced graphene oxide (HRG);
- wherein the second electrode comprises:
- a second substrate at least partially coated on one face with a second mixture of a second binding compound and monoclinic tungsten-oxide (m-WO3) nanoplates;
- wherein the face of the first substrate and the face of the second substrate coated with the carbonaceous material and m-WO3 nanoplates, respectively, are separated by and in direct contact with the porous separator;
- and
- wherein the first and second substrates are formed from at least one material selected from the group consisting of copper, nickel, and steel.
Dependencies are inferred from the claim text.