采用高温固相法合成了LiMn0.8Fe0.2PO4/C、LiMn0.8V0.2PO4/C和LiMn0.6Fe0.2V0.2PO4/C 3种复合正极材料,XRD测试表明LiMn0.6Fe0.2V0.2PO4具有较大的晶胞体积,扫描电镜测试表明其颗粒尺寸细小均匀,最大颗粒不超过3μm.充放电测试表明其放电倍率为0.1C时的首次放电比容量是118mAh/g,另外,容量衰减率和循环伏安测试同时表明复合掺杂两种离子的LiMn0.6Fe0.2V0.2PO4电极材料循环稳定性能较好.
参考文献
| [1] | Guo X F;Zhan H;Zhou Y H .[J].Solid State Ionics,2008,11:6-11. |
| [2] | Cho Y D;Fey G T K;Kao H M .[J].Journal of Power Sources,2009,189:256-262. |
| [3] | Liu J L;Jiang R R;Wang X Y et al.[J].Journal of Power Sources,2009,194:536-540. |
| [4] | Wolfenstine J;Allen J .[J].Journal of Power Sources,2004,136:150-153. |
| [5] | Wolfenstine J;Allen J .[J].Journal of Power Sources,2005,142:389-390. |
| [6] | Bramnik N;Nikolowski K;Trots D M et al.[J].Electrochemical and Solid-State Letters,2008,11(06):A89-A93. |
| [7] | Marth S K;Markovsky B;Grinblat J et al.[J].Journal of the Electrochemical Society,2009,156:A541-A552. |
| [8] | Yamada A;Hosoya M;Chung S C et al.[J].Journal of Power Sources,2003,119-121:232-238. |
| [9] | Wang L;Zhou F;Ceder G et al.[J].Electrochemical and Solid-State Letters,2008,11(06):A94-A96. |
| [10] | Kwon N H;Drezen T;Exnar I et al.[J].Electrochemical and Solid State Letters,2006,6:A277-A280. |
| [11] | Natalia N;Ehrenberg H .[J].Journal of Alloys and Compounds,2008,464:259-264. |
| [12] | Fang HS;Li LP;Yang Y;Yan GF;Li GS .Carbonate anions controlled morphological evolution of LiMnPO4 crystals[J].Chemical communications,2008(9):1118-1120. |
| [13] | Zhang Y;Sun C S;Zhou Z .[J].Electrochemistry Communications,2009,11:1183-1186. |
| [14] | Nam K W;Wang X J;Yoon W S et al.[J].Electrochemistry Communications,2009,11:913-916. |
| [15] | Shiratsuchi T;Okada S;Doi T et al.[J].Electrochimica Acta,2009,54:3145-3151. |
| [16] | Sasaki T;Abe T;Iriyama Y et al.[J].Journal of Power Sources,2005,150:208-215. |
| [17] | Molenda J;Ojczyk W;Marzec J .[J].Journal of Power Sources,2007,174:689-691. |
| [18] | Chang C X;Xiang J F;Shi X X et al.[J].Electrochimica Acta,2008,54:623-627. |
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