Carbon anode materials based on copolymers of nitrogen-containing monomerswith DVB

Through the measurement of electrochemical properties of carbon anodes base d on copolymers of 4-VP and AN with crosslinker DVB, it is found that the i ntroduction of crosslinker DVB can favor the enhancement of reversible capa city, and the highest can be up to 600 mAh g(-1). Measurements of Thermal g ravity analysis, elemental analysis, X-ray powder diffraction, scanning ele ctron microscopy and specific surface area indicate that the incorporation of DVB into polymer PAN can not only affect the contents of nitrogen and hy drogen, but also favor the carbonization process. In addition, it can resul t in improvement of the regularity of the obtained carbon structure, i.e. t he formation of graphite structure, and the number of micropores is increas ed. By virtue of all these factors, charge capacity below and above 0.9 V e nhances and charging voltages decrease with the addition amount of DVB. (C) 1999 Kluwer Academic Publishers.