The electrochemical property of natural graphite was improved by heat treatment . The treated natural graphite(average particle size of 20 μm) showed reversible specific capacitance of 335 mA·h/g and charge disc...The electrochemical property of natural graphite was improved by heat treatment . The treated natural graphite(average particle size of 20 μm) showed reversible specific capacitance of 335 mA·h/g and charge discharge efficiency of 84 3% in the first cycle. The cause of the improvement has been explained in terms of formation of more stable solid electrolyte interface.展开更多
文摘The electrochemical property of natural graphite was improved by heat treatment . The treated natural graphite(average particle size of 20 μm) showed reversible specific capacitance of 335 mA·h/g and charge discharge efficiency of 84 3% in the first cycle. The cause of the improvement has been explained in terms of formation of more stable solid electrolyte interface.