Patent ID: 11887782
Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. 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.