Automotive market promotes development of supercapacitors

Due to the heavy pollution problem of lead storage batteries, the relevant state departments have formulated plans to phase out lead-acid storage batteries. It can be said that it will be a matter of time sooner or later to withdraw from the historical stage. However, due to the lack of domestic core technologies and high production costs, lithium batteries are In a short period of time, it is difficult to apply it on a large scale. Therefore, a supercapacitor that combines the advantages of a lead battery and a lithium battery has emerged. In the face of an ever-growing automotive market, supercapacitors have also received more display platforms. Therefore, it is possible to predict future vehicles. The use of the market will vigorously promote the development of batteries, especially supercapacitors.

Supercapacitors can be charged and discharged quickly in a few seconds, and the cycle life is high, but the specific energy is not high, which combines the advantages of lithium batteries and lead-acid batteries. If the electrolytic capacitor is a 100-meter sprinter, and the popular lithium battery is a long-distance runner, then the super capacitor is more like a 400-800 meter runner.

The next 40%-50% of applications will be in the automotive market. Electric or hybrid vehicles, as well as automotive energy-saving (brake energy feedback) applications have broad prospects. At present, the main domestic application is hybrid buses, as well as braking energy recovery and start-up acceleration. In the United States and Japan, start-stop weak mixing is in a large number of promotion stages. Domestic hybrid and series extended-range electric vehicles will also be applied to supercapacitors. Among the mixed buses, more than 1,000 EDLCs were used in last year, which were produced by CSR Times and Yutong.

At present, the global application of supercapacitors is still in its infancy and is catching up. Japan is the largest in the United States, and China and South Korea are catching up. In the EDLC industry distribution, most of the upstream raw material manufacturers, monomer manufacturers, and module system manufacturers are in foreign countries. Raw materials are monopolized by foreign countries, and domestic monomer manufacturing and module system industrialization have just begun.

Therefore, if we want to solve the core problems of the current technology, we must start with raw technology, energy consumption and other aspects, reduce production costs and then drive the popularity of super capacitors. Only by mastering the core raw materials can the cost be reduced. In addition, the energy consumption is also different for different process costs. We must pay attention to engineering and equipment technology, otherwise the cost will be constrained. The yield of well-equipped electrolytic capacitors is high, and there are advantages in foreign countries. Japanese equipment investment is over 15 million, and South Korea is 12 million. The cost advantage space is much larger.