| 煅烧温度对锂离子正极材料Li[Ni0.475 Mn0.475 Co0.05]O2结构和电化学性能的影响 |
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| 引用本文： | 王丽琴,焦丽芳,袁华堂,王永梅.煅烧温度对锂离子正极材料Li[Ni0.475 Mn0.475 Co0.05]O2结构和电化学性能的影响[J].电化学,2006,12(3):275-278. |
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| 作者姓名： | 王丽琴 焦丽芳 袁华堂 王永梅 |
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| 作者单位： | 南开大学新能源材料化学研究所,天津,300071;南开大学新能源材料化学研究所,天津,300071;南开大学新能源材料化学研究所,天津,300071;南开大学新能源材料化学研究所,天津,300071 |
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| 摘 要： | 应用高温固相合成法制备L iN i0.475Mn0.475Co0.05]O2.XRD,SEM,循环伏安及充放电容量测试表明,在800℃下煅烧合成的样品具有较高的嵌锂容量和良好的循环稳定性,如在20 mA/g和2.3~4.6 V的电压范围内,其首次放电比容量为178.8 mAh/g,循环30周后放电比容量仍能达到150.2 mAh/g,容量损失16.0%.
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| 关 键 词： | 锂电池 正极材料 Li[Ni0.475Mn0.475Co0.05]O2 高温固相法 |
| 文章编号： | 1006-3471（2006）03-0275-004 |
| 收稿时间： | 2006-01-13 |
| 修稿时间： | 2006-03-28 |
Calcined Temperatures Influence on Synthesis and Electrochemistry Charactarization of Li[Ni0.475Mn0.475Co0.05]O2 for Li-ion Batteries |
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| WANG Li-qin,JIAO Li-fang,YUAN Hua-tang,WANG Yong-mei.Calcined Temperatures Influence on Synthesis and Electrochemistry Charactarization of Li[Ni0.475Mn0.475Co0.05]O2 for Li-ion Batteries[J].Electrochemistry,2006,12(3):275-278. |
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| Authors: | WANG Li-qin JIAO Li-fang YUAN Hua-tang WANG Yong-mei |
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| Institution: | Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China |
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| Abstract: | Layered LiNi_(0.475)Mn_(0.475)Co_(0.05)]O_(2) materials have been prepared by a solid-state pyrolysis method.Experiments of XRD,SEM,cyclic voltammetry and charge/discharge cycling were carried out.It can be learned that when calclined at 800 ℃,the sample showed the highest first discharge capacity of 178.8 mAh·g~(-1) at a current density of 20 mA/g in the voltage range 2.3~4.6 V. |
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| Keywords: | Li battery Cathode material Li[Ni_(0 475)Mn_(0 475)Co_(0 05)]O_(2) Solid-state pyrolysis |
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