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US 6,565,701 B1Granted
Ultracapacitor current collector
AssigneeGeneral Electric Company
InventorsElihu Calfin Jerabek, Mati Mikkor
Life of this patent
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Abstract
An ultracapacitor comprises two solid, nonporous current collectors, two porous electrodes separating the collectors, a porous separator between the electrodes and an electrolyte occupying the pores in the electrodes and separator. At least one of the current collectors comprises a conductive metal substrate coated with a metal nitride, carbide or boride coating.
Claims10
A method of making an ultracapacitor, comprising:
- (A) coating a metal nitride, carbide or boride onto a conductive metal substrate to form a non-oxidized metal nitride, carbide or boride coat on the conductive metal substrate;
- (B) providing a multilayer cell comprising two solid, nonporous current collectors, each comprising said conductive metal substrate coated with a non-oxidized metal nitride, carbide or boride coating;
- two porous electrodes separating said current collectors;
- a porous separator between said electrodes and an electrolyte occupying pores in said electrodes and separator;
- and
- (C) sealing said cell to form said ultracapacitor.
3 more elements
A method of making a stacked ultracapacitor, comprising:
- (A) coating a metal nitride, carbide or boride onto a conductive metal substrate to form a non-oxidized metal nitride, carbide or boride coat on the conductive metal substrate;
- (B) providing a stack of multilayer cells, each cell comprising two solid, nonporous current collectors comprising said conductive metal substrate coated with a non-oxidized metal nitride, carbide or boride coating, two porous electrodes separating said current collectors, a porous separator between said electrodes and an electrolyte occupying pores in said electrodes and separator;
- and
- (C) sealing said stack of cells to form said stacked ultracapacitor.
1 more element
Dependencies are inferred from the claim text.