my country has made breakthroughs in large-scale mass production of core electrode materials for supercapacitors

　　As a high-efficiency energy storage device, supercapacitors are widely used in important fields and links such as special applications, rail transit, urban buses, lifting machinery potential energy recovery, power generation and smart grids, and consumer electronics. High-quality organic supercapacitor activated carbon is the only active material that provides energy in the electric double layer supercapacitor that is currently the most widely used and sold in the market. It is the core material in supercapacitors. It needs to meet various stringent requirements such as large specific surface area, reasonable pore size distribution, high purity, and high packing density to achieve the advantages of high energy density, high power density, and long service life. The above-mentioned high-quality requirements make the threshold for technical research high. At the same time, the requirements for product uniformity and low cost also require the establishment of large-scale, continuous preparation production lines. The dual bottlenecks of technology and scale have caused high-quality organic supercapacitor activated carbon to be monopolized by Japanese, Korean and other companies for a long time, becoming a "stuck neck" project in the development of my country's supercapacitor industry. Under the personal leadership of Chairman Zhang Yonglin, Guangxi Beihaixing Stone Carbon Material Technology Co., Ltd. used ASEAN high-quality coconut shells as raw materials. After 10 years of exploration and research, it developed a three-step method (preactivation-activation-pore size modulation) to prepare specific surface area. Activated carbon technology reaching 1900m2/g. At the same time, a unique step-by-step impurity removal process was formed to make the oxygen content and iron impurity content less than 20PPm; based on the understanding that surface layer characteristics affect conductivity, a new surface treatment process was developed, achieving a product that is twice as low as foreign products. low resistivity. In addition, it has developed the largest activation equipment among similar technologies to realize the recycling of process exhaust gas, and built a 300-ton/year continuous production line of high-quality organic supercapacitor activated carbon, which is green, environmentally friendly and safe. The continuous preparation technology and application of 300 tons/year of high-quality organic supercapacitor activated carbon has broken the foreign technology monopoly and realized the substitution of imports, filling the domestic gap. The overall technology has reached the international advanced level and is a major contribution to the key materials of supercapacitors in my country. , will greatly promote the development of my country's supercapacitor industry.

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