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The small capacity of the battery has been successfully applied in human life, further research and development of new environmentally friendly battery suitable for large-scale energy storage, development and utilization of new energy sources, will have great social and economic significance. All vanadium redox flow battery can be regarded as the representative of the new energy storage battery, compared with other batteries and it has a unique advantage, and therefore by researchers at home and abroad. At present, the vanadium battery has been abroad applied to wind power plant, power station power peaking and solar photovoltaic demonstration operation. But the development of vanadium battery is still limited, the electrode material is a very important factor. The electrode material is mainly…
The superfine graphite powder used in lubricating greaser is the graphite powder which is specially used for production of lubricating grease, this superfine graphite powder is a very good lubrication graphite powder, its particle size is micron, therefore, the superfine graphite powder used in lubricating greaser has the advantages of good lubrication,good performance of high temperature resistance and the corrosion resistance, the superfine graphite powder lubrication grease have a very good application in lubricating grease production areas . The use of the superfine graphite powder in lubricating grease can improve the service life of lubricating grease effectively. it uses natural graphite flake as raw materials and made by special processing, the has inherited the superior lubricating properties of the natural…
Electrode material is one of the key materials for all vanadium redox flow battery. Graphite felt material due to the large real surface area, good stability and occupy the leading position. But the graphite felt material is poor in hydrophilicity, and the electrochemical activity is not good enough. This paper on the graphite felt electrode respectively chromic acid oxidation method, mixed acid electrochemical oxidation method and hydrothermal ammoniation method for processing vanadium redox flow battery to improve its activity. The chromic acid oxidation, hydrophilicity and electrochemical activity of graphite felt electrode significantly enhanced, The increase of oxygen functional groups on the carbon fiber and the surface gully increased, the former increased the carbon fiber surface to participate in the VO2+/VO2+…
