High specific capacitance and high power density of printed flexible micro-supercapacitors

Patent metadata

Field	Value
Publication number	US-9824828-B2
Application number	US-201314436534-A
Country	US
Kind code	B2
Filing date	Oct 17, 2013
Priority date	Oct 17, 2012
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

The invention relates to micro supercapacitors and nanocomposite active materials and methods of fabrication thereof.

First claim

What is claimed is:

1. A method of making a micro supercapacitor, comprising
a) screen printing a metal ink on a substrate to form a first metal electrode and a second metal electrode;
b) drying the first metal electrode and the second metal electrode under vacuum and elevated temperature;
c) screen printing an active material ink on top of the first metal electrode and the second metal electrode to form an active material on the first and second metal electrode;
d) drying the active material on the first and second metal electrode at an elevated temperature; and
e) drop-casting a solid electrolyte onto the active material on the first and second metal electrode to form the micro supercapacitor.

2. The method of claim 1 , wherein the active material comprises a carbon nanostructure, a metal oxide, or combination thereof.

3. The method of claim 1 , wherein the active material comprises manganese oxide (MnO 2 ) and carbon nanotubes.

4. The method of claim 1 , wherein the active material comprises manganese oxide (MnO 2 ) and onion like carbon.

5. The method of claim 1 , wherein the active material comprises manganese oxide (MnO 2 ) and graphene.

6. The method of claim 1 , wherein the first metal electrode and the second metal electrode are patterned to create channels between the first metal electrode and the second metal electrode.

Assignees

• Univ Singapore Technology & Design

Inventors

• Yang Hui Ying
• Wang Ye

Classifications

• H01G11/36 Primary

  Nanostructures, e.g. nanofibres, nanotubes or fullerenes · CPC title

• H01G11/38

  Carbon pastes or blends; Binders or additives therein · CPC title

• H01G11/24

  characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor · CPC title

• H01G11/56

  Solid electrolytes, e.g. gels; Additives therein · CPC title

• H01G11/86

  specially adapted for electrodes (carbonisation or activation of carbon for the manufacture of electrodes H01G11/34) · CPC title