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According to the carbon fiber material , carbon fiber cloth can be divided into: PAN based carbon fiber cloth, rayon based carbon fiber cloth and pitch based carbon fiber cloth, wherein PAN based carbon fiber cloth accounted for more than 90% of the market, so we talk about PAN based carbon fiber cloth mainly. In accordance with the specifications of carbon fiber cloth, it can be divided into: 1K carbon fiber cloth, 3K carbon fiber cloth, 6K carbon fiber cloth, 12K carbon fiber cloth, 24K and above large tow carbon fiber cloth, the number of single carbon fiber tow, 1K=1000 (root), 3K=3000 (root), 6K=6000 (root), 12K=12000 (root). Carbon fiber cloth according to the woven pattern, it can be divided into:…
In the Medium-grain structure graphite is the particle size in 2 a 0.8 mm of special graphite, with high temperature resistance, oxidation resistance, low content of impurities, single large size, low manufacturing cost advantages. It is used for polycrystalline silicon ingot furnace, various graphite components of crystal thermal field. In the early stage, these parts are made of graphite imported from abroad, and even produced in foreign countries. The price is expensive, a small size single crystal furnace thermal field more than 400 thousand yuan. After several years of development, we designed a special medium breaking system, produce their own special vibration equipment, introduced the high pressure impregnation, tunnel type baking furnace and the internal string type graphite furnace is…
All vanadium redox flow battery (VRB battery, VRB) is a new type of green environmental protection battery, has the advantages of high efficiency, long service life, safe and reliable, can be used as a large energy storage device, the wind, hydro, solar and other unstable energy into electrical energy storage to be used as a backup power supply has a wide application prospect. The hydrophilic and electrochemical activity of PAN based (PAN) graphite felt is poor and the graphite felt needs to be modified to be better used in vanadium battery. In order to improve the electrochemical activity of graphite felt, the two cerium oxide was modified on graphite felt by ethanol solution method and sol gel method. Modified graphite…
