There is an electrolyte material for storing electric charge inside the electrolytic capacitor, which has positive and negative polarity, similar to the battery and can not be reversed. The positive electrode is a metal substrate adhered with an oxide film, and the negative electrode is connected with the electrolyte (solid and non solid) through the metal plate. What is the use of solid state electrolytic capacitor?

​The dielectric of liquid electrolytic capacitor is liquid electrolyte. The liquid particles are very active at high temperature and produce pressure inside the capacitor. Its boiling point is not very high, so slurry explosion may occur. The solid capacitor adopts polymer dielectric, and the activity of solid particles at high temperature is lower than that of liquid electrolyte, Its boiling point is also as high as 350 degrees Celsius, so it is almost impossible to have the possibility of slurry explosion. Theoretically, it is almost impossible for solid-state capacitors to explode.