Influence of Plasma Modification of Glassy Carbon Powder on Its Electrochemical properties

Abstract

Abstract Spherical glassy carbon powders were treated in Ar-H2, Ar-N2 and Ar-H2-CO2 induction thermal plasmas under a pressure of 53 kPa. Electrochemical measurements were performed to elucidate the function as an anode of lithium secondary battery. Pseudo equilibrium potential profiles in the intermittent charge/discharge data indicated that the plasma-treated powders had higher capacity than the untreated sample, which would be due to the induced modification by the plasma treatment on chemical composition and morphology on the surface, as well as the graphitization in the bulk of powders.