研制了新型储能器件超级电容电池用石墨和活性炭复合负极材料,应用恒流充放电法,考察了这种复合负极材料的电化学性能.结果表明这种碳复合负极材料兼具良好的电容特性和电池特性,在基本保持电池特性的同时,能将电容器电位窗口从2.5V提高至3.5V vs Li/Li+,能量密度从21.7Wh/kg提高至40.3wh/kg,增大近两倍;有很好的倍率性能,电流密度从0.1A/g增加到1A/g时,比容量仅下降了1.3F/g;同时能保持良好的循环性能,10次容量保持率即使在3.5V高压下仍有96.7%.
参考文献
| [1] | Pasquier A D;Plitz l;Gural J .[J].Journal of Power Sources,2004,136:160. |
| [2] | Wang H;Yoshio M;Thapa A K .[J].Journal of Power Sources,2007,169:375. |
| [3] | 松井恒平;高富里(关);安东信雄 等.锂离子电容器[P].CN:1954397,2007 |
| [4] | Aurbach D;Teller H;Koltypin M .[J].Journal of Power Sources,2003,119:2. |
| [5] | Li F Q;Lai Y Q;Zhang Z A et al.[J].J Acta Phys Chim Sin,2008,24:1. |
| [6] | Gambya J;Tabernaa P L;Simon P .[J].Journal of Power Sources,2001,101:109. |
| [7] | Yang J;Liu Y F;Chen X M et al.[J].Acta Physico-Chimica Sinica,2008,24(01):13. |
| [8] | Khomenko V;Raymundo-Pinero E;Bēguin F .[J].Journal of Power Sources,2008,177:643. |
| [9] | Wang H;Yoshio M .[J].Elcctrochem Commun,2006,8:1481. |
| [10] | Hatozaki O.Lithium Ion Capacitor(LIC)[A].,2006:241. |
| [11] | Andrew B .[J].Journal of Power Sources,2000,91:37. |
| [12] | Kotz R;Hahn M;Gallay R .[J].Journal of Power Sources,2006,154:550. |
| [13] | Lewandowski L;Galinski M .[J].Journal of Power Sources,2007,173:822. |
| [14] | Leroy S;Martinez H;Dcdryvēre R et al.[J].Applied Surface Science,2007,253:4895. |
| [15] | Conway B E.Eletrochemical Supercapacitors:Scientific Fundamentals and Technological Applications[M].New York:Kluwer Academic Pubishers/Plenum Press,1999 |
| [16] | Bryngelsson H;Stjerndahl M;Gustafsson T .[J].J Pow-er Sources,2007,174:970. |
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