At present, there are four companies in the world that can carry out mass production of whisker carbon nanotubes, which are Japan SHOWA SENKO, Taiwan rijiang, US Applied Sciences and our company respectively. Among them, Japan has the largest production of SHOWA SENKO, up to about 500 tons. The technology and equipment of whisker carbon nanotubes developed by our company are at the same level as SHOWA SENKO. Only KELAIWEI company can produce mass production in China, and its technology belongs to international advanced, which is the mainstay in China.
KELAIWEI is a high-tech enterprise of carbon nanomaterials. Since the establishment of KELAIWEI, relying on the technical accumulation of over 20 years by Professor Sun Xiaogang's expert team of Nanchang University, KELAIWEI has actively explored the nanomaterials market at home and abroad. In 2008, Professor Sun's team has successfully synthesized whisker-like carbon nanotubes, in 2013, our company has achieved an annual production capacity of 30 tons, and now we have invested 0.45 billion to build a project of 300 tons of whisker carbon nanotube powder.
Since its establishment, Henan KELAIWEI nano-Carbon Material Co., Ltd. has been insisting on promoting the development of China's high-end nano-material industry, breaking the foreign monopoly on high-end nano-material technology as its own duty, and insisting on independent research and development and innovation, take the technical force to serve the motherland and the technological progress to obtain the benefits of the enterprise as the development driving force rely on the complete intellectual property rights, complete product research and development, process design, mass production, and continuously supply high-end technical products for customers in batches, manufacturing of silicon carbide whisker toughened alumina ceramic sheet.
In order to train the management team, strengthen the management of the upper and lower integration, and understand the front-line situation of the company, the group company pays attention to the grass-roots practice of the personnel of the organs, KELAIWEI company responds to the group's call to actively participate in the meeting, seriously study the grass-roots personnel selected by the organization should abide by the management discipline and work discipline of the temporary enterprise, lower their attitude, go deep into the grass-roots line to understand the actual production, think and analyze the disadvantages and advantages of the current management of the enterprise, improve management ability, silicon carbide whisker toughened alumina ceramic sheet manufacturing.
Henan KELAIWEI Nano Carbon Material Co., Ltd. has been engaged in the research of carbon nanotube materials for more than 20 years. Carbon nano-tube materials used in anode conductive additives of lithium batteries will improve the efficiency by 10% compared with carbon black, and can save a lot of conductive materials, increase the capacity of lithium batteries, and delay the service life of high-end lithium batteries at the same time. Therefore, it can be said that the performance of carbon nanotube materials is quite excellent.
What are the manufacturing methods of carbon nanotubes? Since the discovery of carbon nanotubes, the research on carbon nanotubes has never stopped. Carbon nanotubes have complex and excellent properties. It is both conductive and conductive, very thin but very hard, which is comparable to a hundred times of the hardness of steel. Carbon nanotubes are widely used, so various preparation methods have also been invented. Common production methods include arc method, catalytic thermal decomposition method, hydrothermal method and chemical vapor deposition method, etc.
Due to the adoption of pickling or low-temperature purification process, the graphitization of ordinary carbon nanotubes is generally below 30%, and the whisker carbon nanotubes are purified at a high temperature of 300℃, and carbon atoms are rearranged at high temperature, with the passage of heat preservation time, the arrangement of carbon atoms is more and more regular, thus the performance in all aspects is better. Generally, the graphitization degree of whisker carbon nanotubes purified at high temperature can be above 80%, the thermal conductivity and conductivity of materials of products with high graphitization degree have been greatly improved.
