Monthly Archives - June 2019

Shanghai silicate institute has made progress in the research of BiVO4 based photoanode materials

Solar photoelectric chemistry (PEC) cracking water is an effective method to convert solar energy into hydrogen energy. Among many semiconductor photoanodes, BiVO4 is an excellent photoanode material due to its suitable conduction band, valence band position and forbidden band width. BiVO4 has a light absorption edge of 515nm and a theoretical maximum photocurrent density (Jmax) of 7.5ma cm-2 under AM1.5 sunlight. However, the actual photodecomposition hydroelectricity current density (JH2O) is much lower than its theoretical value, mainly because BiVO4 [...]

Research on nano aluminum nitride in thermal conductive plastics

1. Heat-conducting silica gel and epoxy resin: Ultra-high thermal conductivity nano-aln composite silica gel has good thermal conductivity, good electrical insulation, wide electrical insulation service temperature (working temperature -60℃- 200℃), lower consistency and good construction performance. Products have reached or exceeded imported products, because can replace similar imported products and widely used in electronic devices heat transfer medium, improve work efficiency. Such as CPU and radiator gap, high-power audion, thyristor element, diode, and the substrate contact with the thin seam [...]

Trillion-yuan battery market: global solid lithium battery research and development process

1. Continuous upgrading of energy and safety performance, outstanding advantages of solid lithium batteries Solid state lithium battery is expected to be an important development direction of the next generation of lithium battery. Countries around the world have formulated research and development goals for lithium batteries with high energy density. The Japanese government takes the lead in proposing the goal of “the energy density of battery cells for pure electric vehicles to reach 250Wh/kg by 2020 and 500Wh/kg by 2030”. [...]

Research and application of aluminum nitride and aluminum nitride ceramics

Aluminum nitride (AlN) is a kind of integrated high performance new ceramic material, has excellent thermal conductivity, a reliable electrical insulation, low dielectric constant and dielectric loss, non-toxic and match the silicon thermal expansion coefficient, and a series of excellent features, is considered to be * * a high degree of the semiconductor substrate and the ideal of the electronics packaging materials, wide attention by the researchers at home and abroad. In theory, the thermal conductivity of AlN is [...]