The specific surface area of whisker carbon nanotubes is generally 13~50 m2/g, and that of ordinary carbon nanotubes is above 200 m2/g. The larger the specific surface area is, the worse the dispersion performance of the product is, the agglomeration of conductive agents is more likely to occur. In lithium ion batteries, the larger the specific surface area is, the greater the gas production of lithium ion batteries will be in the long-term cycle process, smaller specific surface area is conducive to improving the cycle performance of lithium ion batteries and reducing the gas production of batteries in the later cycle process.
The utilization rate of active materials in lead-acid battery is low, the energy density is small, and the circulation performance is poor. Adding carbon whisker nanotubes to the negative pole of lead-acid battery can greatly improve the conductivity of the polar plate, the consistency of lead-acid battery can be improved well. Because it is a linear conductive agent, it can still maintain the conductive network in a long cycle, so the cycle characteristics of the battery can be improved. Moreover, due to the addition of whisker carbon nanotubes, the charging and discharging depth of lead-acid battery can be appropriately improved, and the energy improvement can be improved. KELAIWEI and Y Company have conducted in-depth cooperation in the field of lead-acid.
Henan KELAIWEI carbon nanomaterials Co., Ltd. cooperates with many colleges and universities professor Sun Xiaogang of Nanchang University joins our company, Professor Wang Lizhen of Zhengzhou University of light industry is our technical consultant, professor Zhang Meiyun's team of Shaanxi University of Science and Technology provides technical support...... At the same time, our company also works closely with many domestic industry associations. Our company has provided high-end nanomaterials products for many domestic and foreign enterprises, one of which is called carbon nanotechnology.
Good news of patent achievements! Henan KELAIWEI Nano Carbon Material Co., Ltd. successfully obtained two technical patent numbers. It is expected that the technology center won another patent this time, because KELAIWEI company has invested a lot in technology research and development, and Professor Sun's research and development achievements for more than 20 years are also supported, we believe that riverKELAIWEI Nano Carbon Material Co., Ltd. will harvest more technical inventions and release more technical monographs in the future.
Silicon-based devices are large-scale commercial electronic devices, but the pursuit of science is endless, and the pursuit of manufacturing materials with stronger performance and smaller size is always pursued. However, carbon nanotubes have super high conductivity, whose strength is 100 times higher than that of steel, and their thermal conductivity is very strong, which is 10% better than that of carbon black, therefore, carbon nanotubes will become important materials to replace silicon-based devices.
There is a kind of carbon nanotechnology, "the mainstay of technology, high product performance and satisfactory service" is the business philosophy that the technicians of Henan KELAIWEI Nano Carbon Material Co., Ltd insist on implementing in the development of more than 20 years. The R & D team of KELAIWEI, led by Professor Sun Xiaogang, the top domestic nanomaterials research expert, has applied for more than 100 patents and has 9 national property rights patents. KELAIWEI pursues promoting the leapfrog development of nanomaterials with technological progress.
The whisker carbon nanotubes independently developed by KELAIWEI nano-carbon materials company have better performance than traditional carbon nanotubes, because the purity of whisker carbon nanotubes is higher and almost no metal impurities. Whisker carbon nanotubes do not block ion transfer, so their conductivity is stronger, which is very suitable for being used as additive raw materials in lithium battery manufacturing, and can effectively improve the performance and service life of lithium battery.
How were carbon nanotubes discovered? Carbon nanotubes were discovered in the laboratory in 1991 by Japanese physicist Yoshiko Hiroshima. As usual, Yoshima Yoshino, who works in the NEC laboratory of Tsukuba in Japan, was observing the carbon fiber made by the arc method by using the transmission electron microscope, and unexpectedly found "carbon nanotubes". Carbon nanotubes are a kind of "tubular" carbon molecules, whose skeleton is honeycomb-shaped structure.
KELAIWEI has made important achievements in the lean improvement work: complete the company-Level 5S bronze medal certification, which is the inevitable result of the company's concerted efforts, earnest study and practice, in the form of lean work Trainer Training, internal and external communication and learning, the group company rapidly promotes lean management and has achieved gratifying results. There is a kind of technology called carbon nanotechnology.
