What are the differences between capacitors and batteries?

The difference between a capacitor and a battery Capacitor is an electrical component, it is made of aluminum foil with the middle pad of the pole plate, which is wound by insulating both ends and lead wires. The performance is to separate the direct current. It depends on the amount of charge and discharge of the bipolar plates to determine the capacity. The battery is through a chemical reaction. An energy source that absorbs electric charge and stores energy. Batteries and capacitors are two completely different concepts. They are both electrical components and energy storage components. A common capacitor is a structure where two metal electrodes are separated by an insulating material and a protective shell is added. Electrolytic capacitors also have electrolyte. Capacitors are used for coupling, filtering, decoupling, etc., and they are all used as 'instant power supplyBatteries are also two electrodes, but they usually have a large amount of electrochemical materials, which convert electrical energy into chemical energy for storage when charging, and convert chemical energy into electrical energy when discharging. The characteristics of the battery and the capacitor are somewhat similar. The important thing is that: 1. The battery stores a lot of electric energy, but the capacitor stores less. 2. The battery is slow, and the capacitor charges quickly. 3. Most capacitors can be charged with high current, but batteries are rarely charged with high current. With the development of electronic technology, the capacity of capacitors is becoming larger and larger, and batteries are gradually replaced in many places. For example, many automatic flushing faucets now use supercapacitors (capacitors with very large capacity) to replace batteries, and real-time Many clock circuits (most of the power consumption is in the microampere level) also use super capacitors instead of batteries. Last year, my country also developed super capacitors for car power supply to replace batteries to power car engines. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What is a lithium thionyl chloride battery? What are its uses?