Carbon Powders Prepared IN RF Thermal Plasma and Their Application to Anode of Lithium Secondary Battery

摘要

Carbon powders prepared by the RF thermal plasma treatment of phenolic resin were examined for the anode materials of lithium secodry battery. modification of these carbon powders in chemical composition, crystal structure and surface morphology was characteristics of the thermal plasma treatment. The treated powders showed the uniqaue microstructure. TEM observation showed the non-uniform distribution of graphitized and amorphous areas in the aprticles. The electrochemical measurements as an anode for lithium secondary battery were examined in 1M LicClO_4 in a 50:50 mixture of ethylene carbonate and diethyl carbonate .While the electrochemical extraction of lithium ion from plasma-prepared carbon powders proceeded in three stages, the electrochemical insertion looked to proceed in two stages. These electrochemical features can be associated with the uncommon microstructure characteristics.