Dialogue on New Energy | Can Supercapacitors Replace Lithium Batteries in the Future?
Release time:
2019-03-11 10:35
Source:
Xinhua
As the heart of electric vehicles, the development of power batteries has always been a focus of consumer attention, after all, the size of battery capacity directly affects the length of range and the development of electric vehicles. However, our current lithium-ion batteries have stagnated due to the influence of material characteristics in the battery industry. Therefore, finding new energy storage devices to replace lithium batteries will be an inevitable trend in future development. So we would think, why not use supercapacitors as power batteries, can they replace lithium batteries in the future?
The so-called supercapacitor, also known as electrochemical capacitor, is an increasingly popular energy storage system in recent years. It can be considered as a mixture similar to ordinary capacitors and batteries, but different from both. Like batteries, supercapacitors also have positive and negative electrodes separated by electrolytes. However, unlike batteries, supercapacitors store energy in an electrostatic manner like capacitors, rather than chemically storing energy like batteries. In addition, supercapacitors also have unparalleled advantages over lithium batteries, such as the ability to store a large amount of capacitance in a very small volume; Long cycle life, capable of repeatedly charging and discharging hundreds of thousands of times; Short charging and discharging time; Good ultra-low temperature characteristics; High current discharge capacity, etc.
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