New Advances in Studies on Flexible and Miniaturized Supercapacitors of Dalian Institute of Chemical Physics, Chinese Academy of Sciences

Recently, the team of Wu Zhongshu, a researcher from DNZ21T3 group, Institute of Advanced 2D Materials and Energy Devices, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, has made new progresses in the research of flexible and miniaturized graphene based supercapacitors and successfully obtained 2D Thiophene nanosheets and graphene laminated composite films, and applied to high performance, flexible, miniaturized supercapacitors. Relevant research results published in the "Advanced Materials" magazine (DOI: 10.1002 / adma.201602960).

In recent years, with the highly integrated, lightweight portable, wearable, implantable and other new concepts, especially the concept of flexible electronic products constantly put forward, there is an urgent need to develop highly compatible with its high energy density, Flexible, functional integration of micro-energy storage devices. To achieve this goal, the team successfully synthesized graphene based high power planar micro supercapacitors by combining methane plasma reduction and photolithographic micromachining in a previous study (DOI: 10.1038 / ncomms3487). The graphene films doped with nitrogen and boron co-doped by layer-by-layer self-assembled graphene oxide and polylysine with intercalation of boric acid were applied to micro-supercapacitors (Acv. Mater. 2014, DOI: 10.1002 / adma.201401228); high density, high conductivity polymer / graphene, activated graphene / graphene thin film materials are prepared by alternate stacking method, Micro Flexible Supercapacitor (Adv. Mater. 2015, DOI: 10.1002 / adma.201501643); Graphene conductive polymer film is prepared by spray coating method, which is used in ultra-thin, printable and ultra- Capacitors (Adv. Mater. 2015, DOI: 10.1002 / adma.201501208). These flexible, miniaturized supercapacitors represent important applications for future electronics (Natl Sci. Rev. 2014, DOI: 10.1093 / nsr / nwt003).

This work has been funded by the National Youth Thousand Talents Program, the National Key Research and Development Program, the National Natural Science Foundation of China and the Liaoning Provincial Natural Science Foundation.

Low Sodium Silica Sol

Low sodium Silica Sol is a mixed solution formed by adding low molecular weight sodium to nano-sized silica particles in water or solvent.



Moisture resistance, brush resistance and pollution resistance; Cohesiveness, refractoriness and stability of products.



SiO2:% Wt%29-31

Na2O: % Wt % 0.50 or less

PH: 25 ℃ 9.0 to 10.5

Viscosity: 25 ℃, mpa. S acuities were 7

Density: 25 ℃, g/cm31.19-1.21

Size: nm7-10

Appearance: slightly milky translucent liquid

Insulation resistance 8 x 108 ω



1. Should prevent knock damage, pay attention to leakage; To prevent exposure and freezing,

2. The temperature should be between 5 ℃ and 30℃; Strictly prevent dust and other impurities from entering


Because of sodium ion is easy to moisture absorption, low melting point, strong polarity, etc, to conform to the requirements of the coating and other industries use, the company on the basis of the type of Alkaline Sodium Silica Sol developed low alkaline silica sol sodium products, its main characteristic is to reduce the content of sodium oxide, make it applied in paint industry, has better get damp resistance, scrubbing resistance and resistant to pollution; When used in other industries, it shows better cohesiveness, refractories and product stability.

1, the company generally uses 25KG, 250Kg, 1000Kg polyethylene plastic drum packaging, and 16-20 tons of container liquid bags, users can choose according to their own needs;



2. In the process of storage and transportation, knock damage and leakage should be prevented; Avoid freezing and direct sunlight, strictly prohibit insolation, the best temperature 5-30℃; Pay attention to the entry of dust and other impurities; The normal (5-30℃) warranty period of the product is one year. Long-term high or low temperature will cause structural damage and shorten the stability period. It is recommended to use the product within six months to avoid expiration and failure.

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