The principle of supercapacitor is as follows:
Because supercapacitor has the characteristics of instantaneous high power, fast charge and discharge, long cycle life, etc., supercapacitor is widely used in auxiliary peak power, backup power supply, etc. Scenarios such as storing renewable energy and alternative power sources have broad prospects in the fields of new energy vehicles, rail transportation, industrial control, wind photovoltaic power generation and military industry. From the perspective of market size, transportation, industry, and new energy fields account for 38, 30, and 21 respectively. Transportation is still the largest application field.
Supercapacitors, also known as electrochemical capacitors, electric double layer capacitors, gold capacitors, and farad capacitors, are a type of energy storage developed through polarized electrolytes in the 1970s and 1980s. Electrochemical components. It is different from traditional chemical power sources. It is a power source with special properties between traditional capacitors and batteries. It mainly relies on electric double layers and redox pseudocapacitive charges to store electrical energy.
Supercapacitors are partially replacing traditional lithium batteries in the consumer electronics market. Portable devices, low-power electrical appliances, smart watches, etc. mostly use smaller-sized supercapacitors, and their applications are relatively mature. As 5G technology matures, the number of IoT connections in my country is expected to grow rapidly. Supercapacitors can be used in smart meters to provide power for clock chips and power-off protection.
As a low-power wide area network cellular IoT technology based on licensed frequency bands, NB-IoT is suitable for applications such as indoor four-meter meters and underground pipe networks, which are important scenarios in smart cities.