The development of super capacitors has gone through more than 30 years. At present, miniature supercapacitors are widely used in small electromechanical devices (such as computer memory systems, cameras, audio equipment), while large-size cylindrical supercapacitors are mostly used in the automotive field and new energy fields.
In terms of future development, super capacitors will be an important part of the automotive and new energy industries.
At present, the super capacitor industry has become one of the hot topics of research in many countries and regions.
Japan, the United States, and Europe have all regarded the supercapacitor project as a national-level key research and development project, and proposed short-term and mid- to long-term development plans. The USMSC plan in the United States, the New Sunshine plan in Japan and the PNGU plan in Europe all include supercapacitors in the development content.
China has included the "Research and Preparation Technology of Key Materials for Supercapacitors" in the "National Medium and Long-term Science and Technology Development Program (2006-2020)" as one of the frontier technologies in the energy field. During the "Twelfth Five-Year Plan" period, driven by low-carbon, energy-saving, and environmental protection policies, China's large-capacity (above 100F, even up to 200,000 F) and higher power (such as 8~10kW/kg) supercapacitor market is stepping up on a track of rapid development.
As a typical capital-intensive industry, the key technology of super capacitors still requires constant innovation and breakthroughs by industry insiders.
First of all, how to obtain high-performance, low-cost carbon materials will become the key to technological breakthroughs. Throughout the electric double layer capacitors, there are "six highs" in the performance of porous capacitive carbon materials, that is, high specific surface, high porosity, high conductivity, high bulk density, high purity, and high cost performance. These indicators contradict each other and are extremely difficult to balance. They must be carefully adjusted and optimized. In the cost of supercapacitors, ultra-high specific surface activated carbon, which is a fine chemical product, accounts for a large part.
Secondly, as the core technology of supercapacitors, technological breakthroughs in high-conductivity electrolytes are equally important. While continuously improving key technologies such as performance, Chinese supercapacitor manufacturers are also actively expanding their production scale to achieve better scale efficiency and reduce usage costs, while at the same time having a deep understanding of the application needs of different industries and developing targeted technical solutions.
In the next few years, it is believed that driven by the huge market demand of new energy vehicles, solar energy, wind power, rail transit, etc., breakthroughs in the core technology of supercapacitors and cost reductions will be gradually realized, and the "spring" of supercapacitors will also be getting closer.
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