Supercapacitors, the new energy and energy industry

A bus can be fully charged in one minute, and can drive for 6 kilometers after each charge. As a kind of energy storage device with special performance between traditional capacitor and battery, it has short charging and discharging time and cycle life. Long, repeated charge and discharge hundreds of thousands of times and other excellent characteristics have subverted the inherent impression of energy storage equipment in energy-related fields. However, when the supercapacitor expanded the industrial map, it encountered two different days of ice and fire.

Make good use of your own advantages and connect with the national development strategy:

Because the electric double layer and the redox capacitor charge store energy, the energy storage process of the supercapacitor is a reversible physical reaction, so the charging speed is very fast, and it takes only 10 seconds to 10 minutes to reach 95% of the rated capacity. It can be repeatedly charged and discharged hundreds of thousands of times. In addition, the composition, production, use, storage, and dismantling process of raw materials are not polluted, and supercapacitors are an ideal green power source. In the country's vigorous advocacy of building a "two-type" society, the development of green energy-saving and environmental protection industries today, the corresponding industrialization of scientific research applications and advancement, self-satisfaction of the benefits of the day, the trend.

At the same time, China's strategic planning and active advocacy of new energy technologies has also become a booster for the rapid development of supercapacitors. The self-characteristics of some new energy sources such as solar energy, wind energy and tidal energy determine that their power generation methods are often uneven, and the power output is subject to change. This requires a buffer to store energy, and a supercapacitor is preferred. Taking the application of Jixing Technology's supercapacitor in intelligent microgrid as an example, the microgrid is small in scale, weak in self-regulation, load fluctuation and grid operation failure will have a great impact on it. The supercapacitor and battery hybrid energy storage system is arranged in the microgrid, which can store excess electric energy when the load is low, and the load peak feeds the stored electric energy to the microgrid to provide assistance for the adjustment of the microgrid power, and effectively solve the microgrid voltage Problems such as drop and voltage drop improve the power quality of the microgrid.

The concept of new energy vehicles is favored by the government:

With the improvement of people's environmental awareness and living standards, as well as government support and strong subsidies, new energy vehicles are becoming more popular. Taking this opportunity, the supercapacitor as a new energy source also ushered in a booming spring. Brake energy recovery systems consisting of supercapacitor modules are widely used in new energy buses. Absorbs and stores almost all of the braking kinetic energy when the passenger car brakes, releasing these energy when the passenger car starts or accelerates. In the frequent start-stop and congestion conditions of urban public transport, fuel consumption is greatly reduced and emissions are reduced.

The Electronic Information Department of the Ministry of Industry and Information Technology conducted an in-depth study of domestic capacitor companies last year, with a view to supporting the country's super-capacity industry, formulating industry-related support policies, cultivating greater market space, and identifying industry development strategies to find market footnotes. In the same period, the Ministry of Finance also conducted a special investigation on the supercapacitor industry to understand the development of supercapacitors in China, the technical level and the application of urban public transportation, and solicited opinions on the subsidies for new energy vehicles. In April 2016, the Ministry of Industry and Information Technology issued the “Industrial Strong Base 2016 Special Action Implementation Plan”. The program stated that it will focus on supporting the development of supercapacitors in the core infrastructure parts field. It is foreseeable that the application of supercapacitors in new energy vehicles and other fields will usher in new opportunities.

The large cost investment has made it difficult for electric vehicle companies to buy:

Supercapacitors are more complementary to power batteries: they greatly increase the peak output capability of the system or reduce the frequency of short-time high-current discharge of the power battery in a small increase in cost. It has only been adopted on some buses, and has not been industrialized in the entire automotive industry, especially in the passenger vehicle sector. Changan Automobile once said that the supercapacitor mileage has not reached the company's expected standard and will not be used. The price is relatively high. The charging time is only enough for an electric car to drive for several kilometers. The price of energy storage products per kWh is nearly 10 times that of the battery, and the actual operation cost will be large. This problem is a bottleneck in which supercapacitors are difficult to promote and use alone in electric vehicle applications.

The prospect of joint application with batteries is unknown:

Obviously, compared to batteries, energy density is not the long term of supercapacitors, and many new technologies, such as the application of new materials such as graphene to increase the energy density of the research direction of industrialization will take time. At present, supercapacitors and batteries are used in combination in new energy vehicles to improve the power performance and cycle life of batteries when used alone, which is being favored by the industry. Moreover, the combined application of the two energy storage devices will certainly bring more complicated control systems, which is a big test for the overall stability of the automotive system. At present, internationally renowned auto parts suppliers such as Bosch and Dalu are actively expanding this technology. Whether the large-scale application in passenger cars can be broken in the future is still unknown.

Development can be expected in the future:

Although the attitude of new energy vehicles to supercapacitors is like, people who are always ready for high-speed travel have the same attention to spare tires. But the spare tire that doesn't want to turn positive is not a good spare tire. Jixing Technology took the big handwriting and long-term strategy and walked on the road of turning positive, which attracted the local counterparts to be amazed. The company has been in contact with Yutong Bus since 2012, and realized the small-volume application of its capacitor products on Yutong Bus at the end of 2013. By the end of 2015, Yutong had purchased tens of thousands of supercapacitor modules from Jixing Technology; and its failure rate control was relatively low.

The application of Jixing Technology in the field of wind power is also very significant. Through the comparison and evaluation of 11 global supercapacitor manufacturers of Goldwind, the company entered the echelon of gold wind suppliers with absolute technical reliability; became the seawear, Datang Huachuang, Mita, and the prospect. The qualified main suppliers of the major wind turbine factories, including the cumulative supply of thousands of units for Datang Huachuang, installed hundreds of units.

Not only that, at the beginning of 2016, Jixing Technology released the latest research results, including 2.7V new structure super electric monomer series, 3V super electric monomer series, 500V vehicle integrated super capacitor energy storage system and lithium ion capacitors, among which 3V The release of the super-power cell series was released after the results of Maxwell, the international leader in ultra-electric power, a few months later. Recently, Jixing Technology established the first supercapacitor research institute in China, Jixing Super Capacitor and Energy Storage Equipment Research Institute, to consolidate the road of technological innovation and scientific research achievements, and strive to compete with international giants.

Returning to the energy storage industry itself, the time required for a new energy storage technology to enter the mass commercialization market is about 10 years. Many of the labs that feel promising technology have not been adopted by the market because of manufacturing and materials. And functional issues, recognizing that solving these problems, joy is more than worry. As a high-performance energy storage device that is gradually being paid attention to by people in the energy storage industry, supercapacitor is full of people's hearts.