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Vanadium redox flow battery is one of the most development prospect of technology because of the long cycle life, high capacity, flexible design, safe and reliable. Among many carbon materials,the carbon/graphite felt has the most application prospect. Campared with the metal material,the graphite felt has many advantage such like: large specific surface area,good flexibility,easy to machine and install and the price is low,so it’s more suitable to be as electrode material in the vanadium redox flow battery. Now the problem is how to improve the electrochemical activity of graphite felt.The research and development mainly bifurcated graphite felt modification and the preparation of Graphite felt composite electrode. 1) the modification of graphite felt is to improve the property through modify the…
Graphite is formed at high temperatures, is the most widespread graphite metamorphic deposit，By rich in organic matter or carbonaceous sink Indicates the regional metamorphism Graphite and graphite products in industry application is very wide, used for smelting. The high temperature of crucible, mechanical industrial lubricants, making the electrodes and pencil lead Graphite and graphite products are widely used in High-grade refractory material and coating of metallurgy industry, military industry, fire engineering materials stabilizer, light industry of pencil lead,The carbon brush of electrical industry, battery industry electrode catalyst, chemical fertilizer industry, etc.Flake graphite after deep processing,But also produce graphite,Graphite sealing material and composite material,，Graphite products,Graphite antifriction additives etc New technology of graphite products, graphite or graphite products become important nonmetallic mineral…
The property of graphite felt used in redox flow battery has a significance to the widely use of redox flow battery.and the Pan base material is the first choice to make the graphite/carbon felt because of the competitive price and good conductivity, chemical stability etc. The electrode material is core component of the redox flow battery,the stability of the electrode material can decide the service time of the battery.now the PAN graphite/carbon felt is widely used as a commercial. The PAN graphite/carbon felt still has a disadvantage,the chemical activity and hydrophilia is not enough,so it need a chemical modification before used in the battery. The main way to modify the graphite/carbon felt as below: 1、Oxidation style And it devides into…
