Why nano-silicon powder can be used as anode material of lithium battery?
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Author : Lzh
Update time : 2023-02-05 13:30:53
What is nano-silicon powder? Silica powderis a smoky gray super fine powder, and its color changes slightly with its carbon content. The whiteness of silica powder is between 40 and 50, the bulk density is about 200 kg/m3, and its true density is 2.2 g/cm3. Nano-silica powder refers to crystalline silicon particles less than 5 nanometers (1 billionth of a meter). It has the characteristics of high purity, small particle size, uniform distribution, large specific surface area, high surface activity, and low bulk density. It is non-toxic, tasteless, and has good activity; It is a new optoelectronic semiconductor material with wide gap energy and a high-power light source material.
Use of nano-silicon powder Application of silica powder in plastics and modified resins: silica powder is used in plastics, especially in semi-transparent plastic films. After adding ultra-fine silica, its strength, toughness, waterproof performance, energy storage, and thermal insulation are greatly improved. Plastic structural materials can improve their mechanical properties by 1 to 3 times after adding silica powder. Modified resin-based composites can improve the strength, toughness, elongation, wear resistance, finish of the composite materials, anti-aging, and other properties. Application of silica fume in paint and coating: silica fume is used in paint and coating (commonly used in mixed paint, primer, antirust paint, anticorrosive paint, road paint, square paint, marine paint, and other paints and coatings), which can reduce the amount of resin and dispersant used in paint and coating. It can not only play the role of filling, compatibilization, thickening, and extinction but also improve the fineness of paint, leveling performance, film hardness, arc resistance, and insulation. It can also improve water resistance, rust prevention, corrosion prevention, anti-caking, anti-flow column, and thixotropy of paint; the effects of anti-ultraviolet radiation, anti-aging, and improving the storage stability of paint are significant.
Research achievements of nanometer silicon powder (1) The size and density of silicon nanocrystals in silicon oxide can be controlled by changing the amount of silicon-rich, annealing conditions, etc. The literature considers that the critical temperature for silicon nanocrystals is 1000oC, and we have determined that the critical annealing temperature for the occurrence of nanocrystals is 900oC through experiments. The high-resolution electrical image of silicon-rich silicon oxide with the amount of silicon-rich about 30% after annealing at 900oC can clear the silicon nanocrystals (2) Electroluminescence of Au/(Ge/SiO2) superlattice/p-Si structure was observed for the first time. High-resolution electron microscopy of four-period Ge/SiO2 superlattice. The bright line is SiO2, with a thickness of 2.0 nm, and the thickness of the Ge layer is 2.4 nm. (3) Nano-SiO2/Si/SiO2 double barrier (NDB) single well sandwich structure was grown on silicon substrate by magnetron sputtering technology, and the visible electroluminescence of Au/NDB/p-Si structure was realized for the first time. It was found that the peak position and intensity of electroluminescence oscillated synchronously with the change in the thickness (W) of the nano-silicon layer. Further experiments and analysis showed that the oscillation period was equal to the de Broglie wavelength of 1/2 carrier. The electroluminescence model proposed by our group was used for explanation.
Price of nano-silicon powder Nano-silicon powder particle size and purity will affect the product's price, and the purchase volume can also affect the cost of nano-silicon powder. A large amount of large amount will be lower. The price of nano-silicon powder can be found on our company's official website.
Nano-silicon powder supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including nano-silicon powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective nano-silicon powder, you are welcome tocontact us or inquire at any time.
