The lithium ion is freely inserted and interpolated between the layers of graphite to form graphite interlayer compound and can be used as anode material of lithium ion two battery. Natural graphite used as anode material has the characteristics of stable discharge performance, high capacity and low price, which can replace the expensive MCMB. Natural graphite can improve the irreversible capacity of natural microcrystalline graphite through proper purification, particle size control, shape control of micro-powder and surface modification. The study of natural microcrystalline graphite as anode material has been close to pilot product.
Flexible graphite can be used as sealing material because of its unique sealing property and chemical stability. However, it has good conductivity, heat conduction and corrosion resistance, and can be directly pressed into a proton exchange membrane fuel cell with a specific flow field bipolar plate. By improving the process of preparing materials, the conductive property, thermal conductivity and strength of bipolar plates are improved. The present study shows that the preparation of the bipolar plate for proton exchange membrane fuel cell with flexible graphite is a promising prospect.
Porous activated carbon material is the carrier of the double layer of supercapacitors. Porous activated carbon materials used as supercapacitors require high surface area, high chemical stability, and low resistance. At the same time, it is necessary to control the pore size distribution of porous activated carbon materials to improve the efficiency of punching discharge, and to reduce the resistance of forming double layers in deep pores.