Technical Resources

Life Calculation+Technical Analysis

Potentiostatically charged Hybrid capacitors age predictably by a mechanism involving electrochemical reactions that reduce the efficiency of the cathode and consume electrolyte. One of these reacti...

STORAGE LIFE of HYBRID CAPACITORS

Evans Tantalum Hybrid Capacitors have unlimited storage life due to the following factors. Evans Hybrid Capacitors use Tantalum Pentoxide anodes and Ruthenium Oxide cathodes. These electrodes are ch...

MTBF of Hybrid Capacitors

All Hybrid Capacitors use Tantalum pentoxide anodes and Ruthenium Oxide cathodes with wet electrolyte. This design has been proven in over 15 years of field service and numerous customer application...

Capacitors with High Specific Power

Electrochemical energy storage devices employ two types of electrodes that differ in the way they store charge. One kind on which electrochemical reactions with the electrolyte occur during charging...

Characterization of an Evans Tantalum Hybrid Capacitor

The tantalum Hybrid capacitor combines an anode from a wet slug tantalum electrolytic capacitor with a ruthenium oxide based cathode from a redox electrochemical capacitor. The working electrolyte i...

Hybrid Capacitors in Energy Applications

Hybrid Capacitors in Energy Applications

Evanscap Self Discharge Properties

Evans Hybrid Wet Tantalum capacitors do not require shorting wires because of the self-discharge rate. Most residual charge will dissipate within 5-7 days of being energized. This is due to the fact...