| 锂离子电池正极材料LiNi0.5Co0.4Al0.1O2的合成与性能 |
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| 引用本文： | 张钰,粟智,潘会.锂离子电池正极材料LiNi0.5Co0.4Al0.1O2的合成与性能[J].无机化学学报,2013,29(18). |
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| 作者姓名： | 张钰 粟智 潘会 |
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| 作者单位： | 新疆师范大学化学化工学院, 乌鲁木齐 830054,新疆师范大学化学化工学院, 乌鲁木齐 830054,新疆师范大学化学化工学院, 乌鲁木齐 830054 |
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| 基金项目： | 国家自然科学基金(No.21061015)资助项目。 |
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| 摘 要： | 采用高温固相法制备了锂离子电池正极材料LiNi0.5Co0.4Al0.1O2,采用X射线衍射(XRD)、傅里叶红外光谱(FTIR)、扫描电子显微镜(SEM)对材料的结构及表观形貌进行分析。通过恒电流充放电以及循环伏安法进行了电化学性能测试。测试结果表明,充放电电压在3~4.5V之间,在0.2C倍率下首次放电比容量达到159.9mAh·g-1,经50次循环充放电后放电容量为142.6mAh·g-1,表现出良好的电化学性能。
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| 关 键 词： | 高温固相法 锂离子电池 正极材料 电化学性能 |
Synthesis and Performance of LiNi0.5Co0.4Al0.1O2 Composite Material for Lithium Ion Batteries |
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| ZHANG Yu,SU Zhi and PAN Hui.Synthesis and Performance of LiNi0.5Co0.4Al0.1O2 Composite Material for Lithium Ion Batteries[J].Chinese Journal of Inorganic Chemistry,2013,29(18). |
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| Authors: | ZHANG Yu SU Zhi and PAN Hui |
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| Institution: | College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumiqi 830054, China,College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumiqi 830054, China and College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumiqi 830054, China |
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| Abstract: | LiNi0.5Co0.4Al0.1O2 compositions were synthesized by high temperature solid-state method. The crystal structures and surface morphology of LiNi0.5Co0.4Al0.1O2 powders were characterized by X-ray diffractometry(XRD), fourier transform infrared spectrometer(FTIR) and scanning electron microscopy(SEM). The electrochemical properties of LiNi0.5Co0.4Al0.1O2 were examined by charge-discharge tests and cyclic voltammetry. The results showed that thematerial delivered the initial discharge capacity of 159.9 mAh·g-1 with the voltage range 3~4.5 V and 0.2C rate, and it retained 142.6 mAh·g-1 discharge capacity after 50 cycles. |
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| Keywords: | high temperature solid-state method lithium ion batteries composite material electrochemical properties |
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