1. A lithium-ion capacitor (200) comprising: one or more anodes (202) fabricated through coating of a first active material over a first current collector; one or more cathodes (204) fabricated through coating of a second active material comprising three-dimensional crumpled reduced graphene oxide (3D-CrGO) (216) over a second current collector; and an electrolyte (206) for allowing ion exchange between the one or more anodes (202) and the one or more cathodes (204).

2. The lithium-ion capacitor (200) as claimed in claim 1, wherein the first active material comprises two-dimensional reduced graphene oxide (2D-rGO).

3. The lithium-ion capacitor (200) as claimed in claim 2, wherein the 2D-rGO is doped with nitrogen or fluorine.

4. The lithium-ion capacitor (200) as claimed in claim 2, wherein the 2D-rGO is prepared through simultaneous reduction of graphene oxide.

5. The lithium-ion capacitor (200) as claimed in claim 1, wherein the 3D-CrGO (216) is doped with boron or phosphorus.

6. The lithium-ion capacitor (200) as claimed in claim 1, wherein the 3D-CrGO (216) is prepared by spraying graphene oxide in a chamber at a predefined temperature.

7. The lithium-ion capacitor (200) as claimed in claim 6, wherein the predefined temperature ranges from 400 to 800 degree centigrade.

8. The lithium-ion capacitor (200) as claimed in claim 1, wherein the first current collector is a perforated copper foil.

9. The lithium-ion capacitor (200) as claimed in claim 1, wherein the second current collector is a perforated aluminium foil.

10. The lithium-ion capacitor (200) as claimed in claim 1, further comprising a lithium foil (210) for electrochemical pre-lithiation of the one or more anodes (202).

WE CLAIM:
1. A lithium-ion capacitor (200) comprising:
one or more anodes (202) fabricated through coating of a first active material over a first current collector;
one or more cathodes (204) fabricated through coating of a second active material comprising three-dimensional crumpled reduced graphene oxide (3D-CrGO) (216) over a second current collector; and
an electrolyte (206) for allowing ion exchange between the one or more anodes (202) and the one or more cathodes (204).
2. The lithium-ion capacitor (200) as claimed in claim 1, wherein the first active material comprises two-dimensional reduced graphene oxide (2D-rGO).
3. The lithium-ion capacitor (200) as claimed in claim 2, wherein the 2D-rGO is doped with nitrogen or fluorine.
4. The lithium-ion capacitor (200) as claimed in claim 2, wherein the 2D-rGO is prepared through simultaneous reduction of graphene oxide.
5. The lithium-ion capacitor (200) as claimed in claim 1, wherein the 3D-CrGO (216) is doped with boron or phosphorus.
6. The lithium-ion capacitor (200) as claimed in claim 1, wherein the 3D-CrGO (216) is prepared by spraying graphene oxide in a chamber at a predefined temperature.
7. The lithium-ion capacitor (200) as claimed in claim 6, wherein the predefined temperature ranges from 400 to 800 degree centigrade.
8. The lithium-ion capacitor (200) as claimed in claim 1, wherein the first current collector is a perforated copper foil.
9. The lithium-ion capacitor (200) as claimed in claim 1, wherein the second current collector is a perforated aluminium foil.

10. The lithium-ion capacitor (200) as claimed in claim 1, further comprising a lithium foil (210) for electrochemical pre-lithiation of the one or more anodes (202).