Electrolyte is a medium used in chemical batteries, electrolytic capacitors, and other industries, and its representative content varies greatly. There are electrolytes in living organisms (also known as electrolytes), as well as electrolytes used in the battery industry, as well as electrolytes used in industries such as electrolytic capacitors and supercapacitors. The composition of electrolytes used in different industries varies greatly, even completely. For example, the electrolyte of the human body is mainly composed of water, sodium chloride, pH buffer substances, etc. The electrolyte of aluminum electrolyte capacitors contains main solvents such as GBL, the electrolyte of supercapacitors contains main solvents such as propylene carbonate or acetonitrile, the electrolyte of lithium manganese primary batteries contains main solvents such as propylene carbonate and ethylene glycol dimethyl ether, and the electrolyte of lithium-ion batteries contains ethylene carbonate and dimethyl carbonate The main solvents such as methyl ethyl carbonate and diethyl carbonate have completely different conductive salts, such as sodium chloride in the human body, tetraethyl ammonium tetrafluoroborate in supercapacitor electrolyte, lithium perchlorate or lithium trifluoromethanesulfonate commonly used in lithium manganese primary batteries, and lithium hexafluorophosphate in lithium-ion batteries. There are many benefits to using electrolyte as a cathode. Firstly, the contact area between the liquid and the medium is relatively large, which helps to increase the capacitance. Secondly, electrolytic capacitors made from electrolyte can withstand high temperatures, allowing them to pass through wave soldering (which is an important process for SMT chip installation) and have strong voltage resistance. In addition, using electrolyte as the cathode for electrolytic capacitors, when the medium is broken down, as long as the breakdown current does not continue, the capacitor can self heal. But electrolytes also have their shortcomings. Firstly, it is prone to volatilization and leakage in high-temperature environments, which greatly affects its lifespan and stability. At high temperatures and pressures, the electrolyte may also vaporize instantly, causing an explosion due to an increase in volume (commonly known as slurry explosion); Secondly, the ion conductivity method used in the electrolyte has a very low conductivity of only 0.01S (conductivity, reciprocal of ohms)/CM, which results in a particularly high ESR value (equivalent series resistance) of the capacitor