Structure and Anode Performances of Various Types of Graphitized and B-doped Materials

Recently, heteroatom-doped carbon materials BCx, BCxN and CxN have been suggested the potential applications as anode materials in Li ion batteries, because these compounds consist of layered structure [1-3]. In particular, boron-doped carbon materials have been experimentally and theoretically investigated from different points of view, not only from fundamental scientific aspects, such as electronic properties, but also potential applications, such as the high temperature oxidation protector for carbon/carbon (C/C)composite and an anode material for Li ion batteries. Because boron-doping is inducing the creation of electron acceptor level, the enhanced capacity has been expected. The purpose of this study is not only to investigate the electrochemical properties, such as the charge/discharge capacity, voltage profile, and irreversible capacity loss, but also to estimate the boron doping effect in highly ordered carbon materials for use as anode materials in lithium ion secondary batteries.