Graphitic carbon tube obtained by catalytic decomposition of CH4 for anodeof Li ion rechargeable battery

Graphitic carbon nanotubes were prepared by the decomposition of CH4 over t he Ni catalysts and the anodic properties of the obtained tubular graphite for Li-ion rechargeable battery were investigated. The Li intercalation cap acity increased, however, the reversible intercalation capacity was decreas ed with increasing graphitic nanotube surface area. Graphitic tubes prepare d at 973 K exhibited almost the theoretical Li intercalation capacity. In a ddition, it was found that a post annealing treatment of the graphite tube was effective for improving the coulomb efficiency.