Reduction of the irreversible capacity of a graphite anode by the CVD process Original Research Article

The irreversible capacity of a graphite anode was reduced by CVD coating of carbon from a 5% ethylene in Ar gas at temperatures from 700 to 1000°C. The amount of carbon coated on the graphite powder, surface area of the resultant powder and its electrochemical characteristics depend on deposition parameters. The surface area was reduced by ∼10% and coulombic efficiency increased by 5 to 92% for the graphite powders coated with carbon at 800°C. The influence of the deposition temperature on the electrode performance has been discussed based on the physical and electrochemical analysis.