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AssigneeNanotek Instruments Group, LLC
InventorBor Z. Jang
Estimating the term…
Provided is a supercapacitor comprising an anode, a cathode, an ion-permeable separator disposed between said anode and said cathode, and an electrolyte in ionic contact with said anode and said cathode, wherein at least one of the anode and the cathode comprises 0.001% to 95% by weight of multiple graphene sheets spaced by or dispersed in cement and said multiple graphene sheets, when measured alone without cement, have a specific surface area from 50 to 3,300 m2/g. The electrode may further comprise a carbon or graphite material selected from natural graphite, artificial graphite, expanded graphite, meso-phase carbon, meso-phase pitch, meso-carbon micro-bead, soft carbon, hard carbon, coke, carbon fiber, carbon nano-fiber, carbon nano-tube, activated carbon, carbon black, acetylene black, or a combination thereof. Also provided is such a supercapacitor electrode (anode or cathode) and a process for producing an electrode for such a supercapacitor.
A supercapacitor comprising an anode, a cathode, and an electrolyte in ionic contact with said anode and said cathode, wherein at least one of the anode and the cathode contains 0.001% to 95% by weight of multiple graphene sheets that are spaced by or dispersed in cement or concrete and said multiple graphene sheets, when measured alone without cement and concrete, have a specific surface area from 50 to 3,300 m2/g.
A supercapacitor electrode containing contains 0.001% to 95% by weight of multiple graphene sheets that are spaced by or dispersed in a cement or concrete and the graphene sheets, when measured alone without the presence of cement or concrete, have a specific surface area from 50 to 3,300 m2/g.
-26. (canceled)
Dependencies are inferred from the claim text.