Dr. Li Yingyi, associate professor, presided over and participated in the national science and technology support plan, National Natural Science Foundation, Provincial Natural Science Foundation and provincial education department fund, and won the third prize of Jiangxi natural science in 2011 (the third prize). Research Fields: synthesis and application of carbon nanotubes, nano new energy materials, rare earth functional materials, LED optical conversion materials, lithium ion batteries, nano-reinforced composite materials, etc. Currently, he is the project team leader in the R & D team of KELAIWEI, have rich development experience.
KELAIWEI specializes in the preparation technology of nanomaterials for more than 20 years. In the past 20 years, Professor Sun Xiaogang's technical research and development team of Nanchang University has continuously output technical achievements. Now KELAIWEI company has helped enterprises in more than 60 countries around the world to solve the required nanomaterials products. The manufacturing equipment and technology of whisker carbon nanotubes researched and developed by our company by ourselves have the dominant advantage of technology at home and abroad. Our company has applied for 106 patents including 9 national authorized invention patents and 2 international PCT patents.
KELAIWEI company invested 0.45 billion yuan to build dozens of production lines in Henan production base, owning a factory area of 15000 square meters, and designed the production line of whisker carbon nano-tube powder with an annual output of 500 tons, the capacity of the first and second phase projects is 150 tons/year. The company mainly researches and develops whisker nanometer synthesis process and equipment, carbon nanometer powder, carbon nanometer paste, mixed paste and other products.
5G commercial business is developing in full swing, and the importance of 5G key material industry is self-evident, then who has mastered the key technology and has 5G key material supply terminal, will grasp the "sharp tool" in the development of 5G commercial equipment ". KELAIWEI group is looking forward to presenting our products and technologies in Shenzhen international 5G key material industry exhibition 2020, and communicating with you about the cutting-edge technologies of the industry.
Carbon nanotubes are divided into different types according to different standards. Carbon nanotubes are formed after the graphene sheets are curled. Therefore, if we divide them according to the number of layers of graphene sheets, we can divide them into single-walled carbon nanotubes and multi-walled carbon nanotubes. According to the internal structural characteristics of carbon nanotubes, carbon nanotubes can be divided into sawtooth-shaped carbon nanotubes, armchair-shaped carbon nanotubes and other types.
The difference between carbon light plate and carbon crystal plate is a brief analysis of the application of carbon nanotubes in electrochemical devices. The electrochemical performance of carbon nanotubes is excellent. Carbon nanotubes are therefore used to make supercapacitors. Compared with traditional capacitors, the capacity of capacitors made of carbon nanotubes is doubled, reaching Farah level. Scientific Practice has proved that a gram of carbon nanotube capacitor can store 15F to 200F. Thanks to the strong performance of carbon nanotube capacitors, supercapacitors up to several thousand Farah have been manufactured.
The difference between carbon light plate and carbon crystal plate is that the resistivity of powder is an important index to characterize the electrical conductivity of materials. The lower the resistivity, the better the electrical conductivity of products, under the pressure of 20Mpa, the powder resistivity value of whisker carbon nanotubes can reach below 8mΩ · cm, and the resistivity of ordinary carbon nanotubes is above 15mΩ · cm, the resistivity of conductive carbon black is above 100mΩ · cm, and the resistivity of whisker carbon nanotubes is the lowest, which can ensure ultra-high conductivity on lithium ion batteries and composite materials.
