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| 微波法一步合成锂离子电池正极材料Li_3V_2(PO_4)_3的研究(英文) | |
| 引用本文： | 刘丽英,姜霖琳,吴辉强,张海燕,田彦文.微波法一步合成锂离子电池正极材料Li_3V_2(PO_4)_3的研究(英文)[J].稀有金属材料与工程,2010,39(Z1). |
| 作者姓名： | 刘丽英 姜霖琳 吴辉强 张海燕 田彦文 |
| 作者单位： | 1. 广东工业大学,广东,广州,518006;迈科科技有限公司,广东,东莞,523800 2. 东北大学,辽宁,沈阳,110004 3. 广东工业大学,广东,广州,518006 |
| 基金项目： | Liaoning Science and Technology Fund (2003224005) |
| 摘 要： | 以NH4H2PO4、Li2CO3和V2O5为原料,采用微波法快速合成了锂离子电池正极材料Li3V2(PO4)3。考察了微波功率、加热时间及产品中的理论碳含量对材料物理及电化学性能的影响。添加的乙炔黑具有还原剂、微波吸收体及导电剂的多重作用。XRD测试表明采用该法可以获得单相的Li3V2(PO4)3。电化学测试表明含2%C的Li3V2(PO4)3具有较好的充放电性能,充放电电流密度为7mA·g-1时,首次放电比容量为115.7mAh·g-1,20次循环后容量保持率为87.5%。与传统方法相比,微波法具有工艺简单,效率高,经济性好的优点。 |
| 关 键 词： | 磷酸钒锂 正极材料 锂离子电池 微波法 |
One-Step Synthesis of Li_3V_2 (PO_4)_3 for Li-Ion Battery by Microwave Irradiation |
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| Liu Liying,Jiang Linlin,Wu Huiqiang,Zhang Haiyan,Tian Yanwen.One-Step Synthesis of Li_3V_2 (PO_4)_3 for Li-Ion Battery by Microwave Irradiation[J].Rare Metal Materials and Engineering,2010,39(Z1). | |
| Authors: | Liu Liying Jiang Linlin Wu Huiqiang Zhang Haiyan Tian Yanwen |
| Affiliation: | Liu Liying1,2,Jiang Linlin3,Wu Huiqiang3,Zhang Haiyan2,Tian Yanwen3 (1.Guongdong University of Technology,Guangzhou 518006,China) (2.McNair Technology Co.Ltd,Dongguan 523800,China) (3.Northeastern University,Shenyang 110004,China) |
| Abstract: | This paper reports a microwave irradiation method to rapidly and easily synthesize Li3V2(PO4)3 with NH4H2PO4,V2O5 and Li2CO3 as raw materials.Influences of microwave power,heating time and content of carbon (theoretically in products) on physical and electrochemical properties of Li3V2(PO4)3 were researched.Acetylene black added to raw materials played important roles of reductant,microwave absorber and conductive substance.Single phase Li3V2(PO4)3 was determined by XRD in this experiment.Electrochemical te... |
| Keywords: | Li3V2(PO4)3 cathode material Li-ion batteries microwave irradiation |
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