What are the differences between supercapacitors and lithium batteries, and what are the advantages of supercapacitors?

What are the differences between supercapacitors and lithium batteries, and what are the advantages of supercapacitors?

Supercapacitors, also known as gold capacitors or Faraday capacitors, are a new type of electrochemical capacitor. Their unique feature is that they do not undergo chemical reactions during the storage of electrical energy, which are reversible. Due to their working principle, supercapacitors can be charged and discharged hundreds of thousands of times, resulting in a long working time.

Supercapacitors have gradually replaced ordinary capacitors due to their large storage capacity advantage. The capacitance of a supercapacitor with the same volume is much larger than that of a regular capacitor. The capacitance of a supercapacitor has reached the Farad level, while the capacitance of a regular capacitor is very small, usually at the microfaradic level.

Supercapacitors can not only replace ordinary capacitors, but their future development trend is also vaguely about to replace lithium batteries.

So what is the difference between supercapacitors and lithium batteries? What are the advantages of supercapacitors compared to lithium batteries? Let's continue reading together.

1. Working principle:

The energy storage mechanisms of supercapacitors and lithium batteries are different. Supercapacitors store energy through a dual layer energy storage mechanism, while lithium batteries store energy through a chemical energy storage mechanism.

2. Energy conversion:

There is no chemical reaction when supercapacitors convert energy, while lithium batteries convert energy between electrical and chemical energy.

3. Charging speed:

The charging speed of supercapacitors is faster than that of lithium batteries, and they can reach 90% of their rated capacity in 10 seconds to 10 minutes of charging, while lithium batteries only charge 75% in half an hour.

4. Usage time:

Supercapacitors can charge and discharge hundreds of thousands of times, with a long usage time. It is troublesome to replace lithium batteries every 800-1000 times, and the usable time is also short.

5. From an environmental perspective:

Supercapacitors do not pollute the environment during production, use, and disassembly, making them an ideal environmentally friendly energy source. However, lithium batteries cannot be decomposed, causing serious environmental pollution.

From the difference between supercapacitors and lithium batteries, we can see that supercapacitors have much better advantages than lithium batteries. With these advantages, supercapacitors have a broad prospect in industries such as new energy vehicles and the Internet of Things.