The material of composition BC6N with high crystallinity has been synthesized by CVD reaction of BCl3 with acrylonitrile at 1500-2000 degrees C. BC6N electrode has shown opposite electrochemical behavior to graphite electrode in the several electrolyte. Comparison of the open circuit potentials at the initial stage for the intercalation of lithium suggests that the conduction band of BC6N could be more antibonding than that of graphite. On the other hand, the electrochemical intercalation of perchlorate suggests that the highest levels of the valence bands are not so different for both BC6N and graphite The band gap of BC6N could be estimated to be 1.7eV by this electrochemical method.