Flexible conducting polymer energy storage device
AssigneeMassachusetts Institute of Technology
InventorsIan W. Hunter, Eli Travis Paster
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Abstract
Electrochemical redox supercapacitor. The supercapacitor includes two thin films of electrically conducting polymer separated by an ion-permeable membrane and including an electrolyte disposed between the two thin films. Electrical contacts are disposed on outer surfaces of the two thin films. The supercapacitor is flexible and may be rolled, folded on itself, or kept substantially flat. A suitable conducting polymer is polypyrrole. In another aspect, the invention is a method for making a redox supercapacitor.
Claims13
Electrochemical supercapacitor comprising:
- two thin films of electrically conducting polymer separated by an ion-permeable membrane and including an electrolyte disposed between the two thin films;
- and
- electrical contacts disposed on outer surfaces of the two thin films.
Method for making a redox supercapacitor comprising:
- depositing a conducting polymer film on a conductive substrate by electrochemical deposition;
- drying the film and removing it from the conductive substrate;
- placing portions of the film on opposite sides of an ion-permeable membrane to form a stack;
- submersing the conducting polymer film and ion-permeable membrane stack within an electrolyte for a selected period of time;
- providing electrical contacts on outer surfaces of the film portion;
- and
- to placing the conducting polymer film/ion-permeable membrane stack between two non-conductive layers of material.
Dependencies are inferred from the claim text.