采用水热法制备LiNi1/3Co1/3Mn1/3O2,研究了在合成过程中添加不同表面活性剂对锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2电化学性能的影响.利用XRD和SEM对其结构和形貌进行表征,并采用循环伏安、交流阻抗、恒流充放电测试其电化学性能.结果表明,均合成了LiNi1/3Co1/3Mn1/3O2,其中用十二烷基苯磺酸钠合成的样品电化学性能较好,在C/2倍率的放电条件下,首次比容量达到143.8 mAh/g,经过100次循环后,比容量保持为106.8mAh/g,容量保持率为74.3％.
参考文献
| [1] | 王健,钟胜奎,刘乐通.锂离子电池正极材料LiNi1/3 Co1/3 Mn1/3O2的研究进展[J].化工新型材料,2009(09):18-20,29. |
| [2] | 叶永清,肖新颜,万彩霞.锂离子电池正极材料LiNi1/3Co1/3Mn1/3O2研究进展[J].化工进展,2009(07):1192-1197. |
| [3] | Ki-Soo Lee;Seung-Taek Myung;Yang-Kook Sun .Microwave Synthesis of Spherical Li[Ni_(0.4)Co_(0.2)Mn_(0.4)]O_2 Powders as a Positive Electrode Material for Lithium Batteries[J].Chemistry of Materials: A Publication of the American Chemistry Society,2007(11):2727-2729. |
| [4] | Shin HS;Park SH;Bae YC;Sun YK .Synthesis of Li[Ni0.475Co0.05Mn0.475]O-2 cathode materials via a carbonate process[J].Solid state ionics,2005(35/36):2577-2581. |
| [5] | Deng C et al.Effect of synthesis condition on the structure and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 prepared by hydroxide co-precipitation method[J].Electrochimica Acta,2008,53(05):2441. |
| [6] | Kim J M;Chung H T .The first cycle characteristics of LiNi1/3Co1/3Mn1/3O2 charged up to 4.7 V[J].Electrochimica Acta,2004,49(06):937. |
| [7] | Wen JW;Liu HJ;Wu H;Chen CH .Synthesis and electrochemical characterization of LiCo1/3Ni1/3Mn1/3O2 by radiated polymer gel method[J].Journal of Materials Science,2007(18):7696-7701. |
| [8] | Kim J M;Kumagai N;Chung H T .Improved electrochemical properties and structural stability of overlithiated Li1+x(Niv3Co1/3Mn1/3)1-x O2 prepared by spray-drying method[J].Electrochemical and Solid-State Letters,2006,9(11):A494. |
| [9] | Cho T H;Park S M;Hideshima Y et al.Effect of synthesis condition on the structure and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 prepared by carbon co-precipitation method[J].Journal of Power Sources,2005,142:306. |
| [10] | 张晓雨,江卫军,朱晓沛,其鲁.湿化学法合成LiNi1/3Mn1/3Co1/3O2及其表征[J].物理化学学报,2010(06):1507-1514. |
| [11] | 王振伟,田彦文,康晓雪.前驱体制备条件对LiNi1/3Co1/3Mn1/3O2的影响[J].电池,2008(03):169-171. |
| [12] | Ding C X et al.Synthesis,structure,and electrochemical characteri2ation of LiNi1/3Co1/3Mn1/3O2 prepared by thermal polymerization[J].Materials Research Bulletin,2009,44(03):492. |
| [13] | Ding, C.X.;Bai, Y.C.;Feng, X.Y.;Chen, C.H. .Improvement of electrochemical properties of layered LiNi _(1/3)Co_(1/3)Mn_(1/3)O_2 positive electrode material by zirconium doping[J].Solid state ionics,2011(1):69-73. |
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