Abstract
In order to alleviate the serious impact of over-exploitation of fossil energy such as coal, oil and natural gas, people began to turn their attention to other renewable clean energy sources. Energy storage technology can be roughly divided into two routes: physical energy storage and electrochemical energy storage. Supercapacitor is the most commercial technical device in physical energy storage, which is a good supplement to other electrochemical energy storage technologies. Batteries based on traditional chemical reactions, such as lithium ion, lead acid, Ni-MH, Ni-MH and Ferrous lithium phosphate, have been widely used in many fields. These batteries have large capacity and no memory effect, but their charging and discharging currents are small, their life is short, and their charging circuits are complex. For many occasions with high requirements for reliability, working life and specific power, this kind of battery is slightly insufficient. Therefore, it is imperative to study high-performance energy storage devices. This paper introduces the principle and characteristics of supercapacitors, and analyzes the supercapacitors based on new carbon-based nanomaterials and their applications in the new energy automobile industry.
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