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Silicon monoxide

Silicon monoxide

-45μm

-45μm

20 ~ 70mm

20 ~ 70mm


Granules

Granules


In 1961, we became the first in Japan to successfully manufacture silicon monoxide (SiO). Since then, in close link with SiO users, we have been keeping efforts to improve quality and to reduce prices.
Membranes which are vapor-deposited with silicon monoxide (SiO) exhibit excellent barrier properties preventing the permeation of water vapor and oxygen. It is on this basis that SiO is used for making gas barrier packaging films. Our high-quality SiO already has a proven track record as a barrier material for food packaging and commands the largest share of the industry market. The range of uses of SiO is also expanding to other business area than packing. The range of uses of SiO is expanding, such as in solar cell back sheets, where even greater barrier properties are required, and as industrial packaging.
Dramatic growth is also expected in its use in negative electrodes of lithium-ion rechargeable batteries, which have high levels of energy density and are widely used as power sources for mobile phones and laptop computers. The advancing functionality of these devices demands higher battery capacity, which in turn requires development of a next-generation negative electrode material with a greater electricity storage capacity than those of conventional materials. We have positioned SiO as the most important material for next-generation negative electrode materials. In order to commercialize SiO, we are undergoing assessments by our customers (battery manufacturers) and conducting research and development.

Silicon monoxide properties

The most outstanding feature of our silicon monoxide is its high purity. Semiconductor silicon grade high purity silicon is used as the raw material, and the vacuum technology from titanium sponge manufacture is leveraged to ensure a reliable supply of high quality products that other manufacturers cannot come close to matching.

Applications

SiO (Barrier Film)

  1. Deposition material for gas barrier films for food packaging
  2. Optical applications, antireflective coatings, absorptive coatings, protective coatings
  3. Deposition material for gas barrier films for solar cell
  4. Deposition material for display
  5. Negative electrodes of lithium-ion rechargeable batteries
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