The main advantages of aluminum polymer capacitors include:

Lower equivalent series resistance (ESR) allows them to perform better in high-frequency circuits, effectively filtering out ripple current and noise.

Higher temperature stability, wider operating temperature range, suitable for use in harsh environments.

Don't worry about electrolyte drying up, it has a longer service life and higher reliability.

Not easy to leak and low risk of explosion, as there is no liquid electrolyte, there is a significant improvement in safety.

Small in size and lightweight, suitable for portable electronic devices and high-density assembly applications

Working principle of aluminum polymer capacitors

The core of aluminum polymer capacitors lies in their solid polymer electrolyte, which replaces the liquid electrolyte in traditional aluminum electrolytic capacitors. 

This polymer material not only improves the stability and high temperature resistance of capacitors, but also significantly reduces ESR.

 When working, the positive electrode is made of aluminum foil, and a layer of aluminum oxide film is formed on the surface as a dielectric; 

The negative electrode is made of aluminum foil coated with conductive polymer. 

Ionic conduction is achieved between the two poles through solid polymer electrolytes, enabling the storage and release of charges.

This mechanism endows aluminum polymer capacitors with excellent electrical performance.