An electrolyte acts as the cathode of electrolytic capacitors. The characteristics of niobium electrolytic capacitors and tantalum electrolytic capacitors are roughly comparable. These capacitors combine features of electrolytic and electrochemical capacitors. Lower voltage applied may have positive influences for tantalum electrolytic capacitors. Electrolytic capacitors age as the electrolyte evaporates. Phosphate compounds are mentioned in patents regarding electrolytic capacitors with aqueous electrolytic systems. The voltage proof of electrolytic capacitors decreases with increasing temperature. The voltage rating of electrolytic capacitors decreases with increasing temperature. This oxide layer acts as the dielectric in an electrolytic capacitor. This oxide layer serves as the dielectric in an electrolytic capacitor. Estimation is similar to wet electrolytic capacitors. The industry switched back to using aluminum electrolytic capacitors. Applying a lower voltage may have a positive influence on electrolytic capacitors. Transients for this type of electrolytic capacitor may destroy the component. It also influenced the development of aluminum electrolytic capacitors.