Can super capacitors be used to replace car starter batteries?

You can replace the car starter battery with a supercapacitor.

Supercapacitors are used as vehicle starting power, with higher starting efficiency and reliability than traditional batteries, and can replace traditional batteries in whole or in part.

It is different from traditional chemical power sources. It is a power source with special properties between traditional capacitors and batteries. It mainly relies on electric double layers and redox pseudocapacitors to store electrical energy.

However, no chemical reaction occurs during the energy storage process. This energy storage process is reversible, and it is precisely because of this that the supercapacitor can be repeatedly charged and discharged hundreds of thousands of times. It has the characteristics of short charging time, long service life, good temperature characteristics, energy saving and green environmental protection.

Supercapacitors can be widely used in different application scenarios such as auxiliary peak power, backup power supply, regenerative energy storage, and alternative power supply . Prospects, especially in some application areas, have very large performance advantages.

1. The earliest application of electronic equipment: such as the memory system of our computer, the flash of a camera, and the backup storage power of audio equipment.

2. In the automotive industry: the super capacitor in the plug-in hybrid electric vehicle mainly cooperates with the battery to form an intelligent start-stop control system.

(1) Super capacitors can quickly and efficiently absorb the regenerative kinetic energy generated by the braking of electric vehicles;

(2) During acceleration and climbing, the super capacitor provides electrical energy for the motor of the intelligent start-stop control system, extending the service life of the battery.

3. Large-size supercapacitors can be used in the braking system of trains and subways, which can save 30% of energy.