Super capacitor battery (I)

Definition: The super capacitor battery is also called 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

Electric energy is an indispensable and important resource in contemporary society, and the advantages and disadvantages of energy storage equipment directly affect the full application of electric power equipment. In recent years, with the development and use of portable devices, uninterruptible power systems, and electric vehicles, the use of batteries has increased. Rechargeable batteries, especially lead-acid batteries, are widely used in various industries due to their excellent features such as low price, stable performance and no memory function. However, due to its inherent conditions, batteries have the problems of poor cycle life, poor high and low temperature performance, sensitive charging and discharging processes, difficulty in recovering deep discharge capacity, and environmental pollution. Traditional batteries have become increasingly unsatisfying to people's energy storage systems. The requirements provide a vast space for the development of supercapacitor batteries.

2 Principles of Supercapacitors

The basic principle of a supercapacitor is a new type of electronic component that utilizes an interface double layer formed between an electrode and an electrolyte to store energy. When the electrode and the electrolyte are in contact, due to Coulomb force, intermolecular force, or interatomic force, a stable, opposite-signed double-layer charge appears at the solid-liquid interface, which is called an interface double layer. Tantalum capacitors are also called Faraday quasi-capacitors, which are the two-dimensional or quasi-two-dimensional space in the electrode surface or bulk phase. The electroactive substances are underpotentially deposited and undergo highly reversible chemisorption/desorption or oxidation/reduction reactions. Generate capacitance related to electrode charge potential.

3 Application of Supercapacitors

As a product, the super capacitor has matured, and its application range has been continuously expanded. It has been increasingly used in industries, consumer electronics, communications, medical equipment, defense, military equipment, transportation and other fields. From the small-capacity special energy storage to the large-scale electric energy storage, from the individual energy storage to the hybrid energy storage composed of a battery or a fuel cell, the supercapacitor exhibits unique advantages. The United States, Europe, Japan, South Korea and other developed countries and regions have carried out fruitful research on the application of supercapacitors. To sum up, the application or application research of supercapacitors can be divided into the following aspects.