The carbon/graphite felt have the characteristics of light weight, high tensile, abrasion resistance and excellent eletctrical and are widely used in semiconductor, energy , machinery and other inductrial fields as thermal insulation material.. Since these furnaces work at extremely high temperatures, it is necessary to have insulation material that can withstand such high temperatures. Moreover, for energy conserving purposes, quality heat insulation material is the best choice. We pride ourselves in the ability to offer first class technical backup to our customer base. we produce all of our own carbon and graphite thermal insulation materials under the strictest quality standards.Flat, board and cylindrical shapes of products are available, it’swidley used in high vacuum and furnace f inert gas..

　　The rayon based rigid graphite felt and pan based rigid graphite felt are processed for inert or vacuum furnaces up to 2500 D.C. Graphite foil or paint can be covered on surfaces to reduce dusting,out gassing,or applied as heat reflection.

　　The graphite felt is normally classified into asphaltic based graphite felt, PAN based graphite felt &rayon-based graphite felt. The mainly application is electric conduction in the photovoltaic industry, as the heat retaining material, thermal insulation material for the smelting furnace and vacuum furnace, and in chemical industry it could be the filtration material, it can be used for Vacuum Furnace, High Temperature Sintering Furnace, Solar Silicon Furnace, crystal growth furnace, inert atmosphere furnaces, semiconductor furnace, multicrystalline DSS, Directional Solidification System(DSS) furnaces.

　　Graphite rigid felt is a shaped machined insulating material made of graphite fiber or felt and carbon binding.It is new material based on PAN-Carbon and graphite felt and bonded with special binding agent. With properties of rigid, smooth surface, low specific gravity,good anti-bending and compression strength, it can be used in vacuum furnace for heat insulation,in order to prevent fluffing, the felt can be surface-treated by special coating, graphite paper/cloth liner,etc.

　　The bipolar plate used therein are required to achieve higher electrical conductivity due to the requirements for redox flow batteries have become more and more stringent in recent years.and thus A bipolar plate composed of an electrically conductive composite achieves a higher electrical conductivity by increasing the conductive filler content in the material.

　　Graphite was used as one of the main bipolar plate material in redox flow batteries due to its high electrical conductivity ,low weight and good chemical stability in the past.Graphite blocks were produced by sintering process and plates were machined to desired sizes.The main limitation of this method was the porosity of produced graphite plates.

　　At present, our company provides a bipolar plate for a redox flow battery , the bipolar late including an electrically conductive composite prepared by mixing a thermoplastic resin ,a carbonaceous material selected from graphite and carbon black ,and a carbon nano-tube.

　　Our current business is extended from the overall solution of the material to the manufacture of bipolar plates, and thus provides the following three VRB assembly services:

　　1).The bipolar plate (we can provide punch service. The thickness of the bipolar plate now can be processed are 0.6/0.8/1.0 /1.2/1.3mm.

　　2).The composite of the bipolar plate and the electrode, the advantage is that the electrode felt is fully combined with the felt in the plate, it greatly reduces the theoretical value of the contact resistance to the felt.

　　3).The bipolar plate ,the electrode and outline border. Three in one frame after embedding flow

　　box (precision injection), it’s the way which improve the reliability greatly compared with the above 1 and 2.

　　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 felt, in the battery testing of the highest coulomb efficiency can reach 95%, energy efficiency is also close to 90%. Surface deposition method on the surface of graphite felt with catalytic activity of metal, is another kind of modified graphite felt. Battery test results show that the coulomb efficiency can reach 90%.

　　Polyacrylonitrile (PAN) graphite felt is a great ratio of carbon fiber surface area, can provide a larger electrochemical reaction for the electrochemical reaction, while the graphite felt has strong oxidation and corrosion resistance, and in addition to the conductive properties of itself, because the graphite felt electrode can be compressed, as the battery assembly, the contact resistance and the bipolar plate is small, compared with the metal electrode, the cost is relatively low, is a kind of ideal electrode material. But to be used as electrode materials for vanadium battery, large scale application in the actual production, life, but also to solve the problem of poor Shi Mozhan hydrophilic and electrochemical activity.