通过浸渍等方法制得改性石墨材料,提高了复合材料的可逆嵌锂容量,改善了其大电流性能及循环使用寿命.应用电子扫描显微镜(SEM)及恒电流充放电技术研究改性石墨材料的表面物理形态及在不同电流密度下的充放电性能特征,认为改性后的石墨更加适合作为石墨/炭非对称电化学电容的负极材料.
参考文献
[1] | Andrew Burke .Ultracapacitors:why,how,and where is the technology[J].Journal of Power Sources,2000,91:37. |
[2] | Gamby J;Taberna P L;Simon P et al.Studies and characterizations of various activated carbons used for carbon/carbon supercapacitors[J].Journal of Power Sources,2001,101:109. |
[3] | Qu Deyang .Studies of the activated carbons used in doublelayer supercapacitors[J].Journal of Power Sources,2002,109:403. |
[4] | Beliakov A I.Asymmetric type electrochemical capacitors[A].Pennington,NJ:Electrochemical Soc,2002:121. |
[5] | Morimoto T;Tsushima M;Che Y.Hybrid capacitors using organic electrolytes[A].Pennington,NJ:Electrochemical Soc,2002:161. |
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