초록 ▼

A multilayer cell is provided that comprises two solid, nonporous current collectors, two porous electrodes separating the current collectors, a porous separator between the electrodes and an electrolyte occupying pores in the electrodes and separator. The mutilayer cell is electrolyzed to disassoci

A multilayer cell is provided that comprises two solid, nonporous current collectors, two porous electrodes separating the current collectors, a porous separator between the electrodes and an electrolyte occupying pores in the electrodes and separator. The mutilayer cell is electrolyzed to disassociate water within the cell to oxygen gas and hydrogen gas. A vacuum is applied to the cell substantially at the same time as the electrolyzing step, to remove the oxygen gas and hydrogen gas. The cell is then sealed to form a ultracapacitor substantially free from water.

대표청구항

[ What is claimed is:] [1.] A method of making an ultracapacitor comprising eliminating moisture from a non-aqueous ultracapacitor cell by electrolyzing said ultracapacitor cell using voltage cycling, and simultaneously applying a vacuum prior to and sealing said cell to form said ultracapacitor.

[ What is claimed is:] [1.] A method of making an ultracapacitor comprising eliminating moisture from a non-aqueous ultracapacitor cell by electrolyzing said ultracapacitor cell using voltage cycling, and simultaneously applying a vacuum prior to and sealing said cell to form said ultracapacitor.