The poor hydrophilicity and electrochemical activity of PAN based graphite felt can be better used in vanadium battery after modification.
VRB is a new type of green environmental protection battery, has the advantages of high efficiency, long life, safe and reliable, can be as a large storage device, wind, hydro, solar and other unstable energy is converted into electrical energy storage, can also be as a standby power and so on. It has widely applied prospect.
With the development of industrialization, the early development of a large number of the use of coal, oil and other fossil fuels . Now, the reduction of these non renewable resources as well as environmental pollution caused by the use of the process and thus caused , The climate change, which threatens the normal production and life of human beings, is a common challenge for human beings.
The vanadium battery is mainly composed of an electrode reaction electrode, a conductive bipolar plate, and a positive electrode and a negative electrode.And the diaphragm of the inner loop of the conducting cell and the electrolyte.
Graphite felt is a great than the surface area of the carbon fiber material can provide large electrochemical reaction area for electrochemical reactions, also graphite felt has strong oxidation resistance and corrosion resistance, and in addition to the conductivity, due to graphite felt able to compress and as an electrode for battery assembly, and the contact resistance of the bipolar plate, compared with metal electrodes, the cost is low. It is an ideal electrode material.
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