Claims
- 1. An electrochemical capacitor, comprising:
- first and second electrodes, each comprising current collecting material and metal oxide material; and
- a solid electrolyte positioned between the first and second electrodes, the solid electrolyte including a polyacid;
- wherein the solid electrolyte comprises a heteropolyacid film formed by coating onto one of the first and second electrodes are greater than 60% by weight phosphotungstic acid (PWA) aqueous solution that is subsequently dried.
- 2. An electrochemical capacitor, comprising:
- first and second electrodes, each comprising current collecting material and metal oxide material; and
- a solid electrolyte positioned between the first and second electrodes, the solid electrode including a polyacid;
- wherein the solid electrolyte comprises a heteropolyacid film formed by coating onto one of the first and second electrodes are greater than 60% by weight phosphomolybdic acid (PMA) aqueous solution that is subsequently dried.
RELATED APPLICATIONS
This application is related to Ser. No. 08/987,862, filed Sep. 25, 1997, to Li et al., entitled "Electrochemical Capacitor with Polyacid Electrolyte", filed concurrently herewith.
US Referenced Citations (11)