| LiNi_(0.5)Co_(0.2)Mn_(0.3)O_2的制备及其性能研究 |
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| 引用本文： | 李伟伟,李丽,杨理.LiNi_(0.5)Co_(0.2)Mn_(0.3)O_2的制备及其性能研究[J].有色金属(冶炼部分),2014(7):53-55. |
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| 作者姓名： | 李伟伟 李丽 杨理 |
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| 作者单位： | 新乡学院 化学与化工学院,新乡学院 化学与化工学院,河南科技学院 实验中心 |
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| 基金项目： | 国家自然科学基金资助项目(51304064) |
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| 摘 要： | 采用二次高温煅烧法制备了三元复合正极材料LiNi0.5Co0.2Mn0.3O2,用SEM、XRD和蓝电测试仪等对其结构和物理化学性能进行表征和测定。结果表明,材料具有较好的层状结构,在2.75~4.25V下0.2C放电容量达到151mAh/g,经50次充放电循环后,放电容量仍为初始放电容量的93%,放电容量保持率较高,是一种电化学性能优良的三元正极复合材料。
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| 关 键 词： | LiNi0.5Co0.2Mn0.3O2 制备 层状结构 电化学性能 |
| 收稿时间： | 2013/12/3 0:00:00 |
| 修稿时间： | 2013/12/7 0:00:00 |
Study of Preparation and Characterization of LiNi0.5Co0.2Mn0.3O2 |
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| LI Wei-wei,Li Li and Yang Li.Study of Preparation and Characterization of LiNi0.5Co0.2Mn0.3O2[J].Nonferrous Metals(Extractive Metallurgy),2014(7):53-55. |
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| Authors: | LI Wei-wei Li Li and Yang Li |
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| Affiliation: | College of Chemistry and Chemical Engineering,Xinxiang University,Xinxiang Henan,, |
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| Abstract: | The ternary cathode materials, LiNi0.5Co0.2Mn0.3O2, were synthesized by twice high-temperature solid-phase sintering and characterized by SEM, XRD and Land Testing. The results indicate that the layered crystal structure and its morphology is well distributed. The discharge capacity is 151 mAh/g in 2.75~4.25 V at 0.2 C, and the coulombic efficiency is about 93%. This material is an excellent ternary cathode material with high discharge specific capacity. |
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| Keywords: | LiNi0 5Co0 2Mn0 3O2 preparation layered structure electrochemical properties |
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