Definition: Supercapacitor battery (Electrical Double-Layer Capacitor) is a new type of energy storage device. It has the characteristics of short charging time, long service life, good temperature characteristics, energy saving and environmental protection.
1. Introduction to super battery
Electrical energy is an indispensable resource for contemporary society, and the advantages and disadvantages of energy storage equipment directly affect the full application of power equipment. In recent years, with the extensive development and use of portable devices, uninterruptible power supply systems, and electric vehicles, the use of batteries has been increasing. Rechargeable batteries, especially lead-acid batteries, are widely used in various industries due to their low price, stable performance, and no memory function. However, the battery is subject to its innate conditions, and there are problems of poor cycle life, poor high and low temperature performance, sensitive charging and discharging process, difficulty in recovery of deep discharge performance capacity, and environmental pollution. Traditional batteries have become increasingly unable to meet people's energy storage systems. The requirements provide a broad space for the development of supercapacitor batteries.
2. Principle of supercapacitors
The basic principle of a supercapacitor is a new type of electronic component that uses an interface electric double layer formed between an electrode and an electrolyte to store energy. When the electrode is in contact with the electrolyte, due to Coulomb force, intermolecular force or interatomic force, a stable, oppositely signled double layer charge is formed at the solid-liquid interface, which is called an interface electric double layer. The tantalum capacitor, also known as the Faraday quasi-capacitor, is a two-dimensional or quasi-two-dimensional space in the surface or bulk of the electrode. The electroactive material undergoes underpotential deposition and undergoes highly reversible chemisorption/desorption or oxidation/reduction reactions. A capacitance is generated which is related to the electrode charging potential.
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