| 熔融盐法合成高密度锂离子电池正极材料LiNi_(0.8)Co_(0.15) Ti_(0.05)O_2 |
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| 引用本文： | 汤宏伟,赵付双,常照荣. 熔融盐法合成高密度锂离子电池正极材料LiNi_(0.8)Co_(0.15) Ti_(0.05)O_2[J]. 功能材料, 2009, 40(2) |
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| 作者姓名： | 汤宏伟 赵付双 常照荣 |
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| 作者单位： | 河南师范大学,化学与环境科学学院,河南,新乡,453007;河南师范大学,化学与环境科学学院,河南,新乡,453007;北京理工大学,化工与环境学院,北京,100080 |
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| 摘 要： | 利用低共熔组成的0.38LiOH-0.62 LiNO3混合锂盐体系,与高密度前驱体掺杂Co的Ni(OH)2、TiO2粉末在低温下自混合,无需前期研磨和后续洗涤,直接制备出振实密度达3.17g/cm2的高密度锂离子电池正极材料LiNi0.8Co0.15Ti0.05O2.X射线衍射分析表明合成的LiNi0.8Co0.15Ti0.05O2具有规整的层状α-NaFeO2结构.扫描电镜显示产物颗粒均匀,电性能测试表明,在0.2C放电倍率和3.0～4.3V的电压范围内,LiNi0.8Co0.15Ti0.05O2良好首次放电比容量达169mAh/g,且具有良好的循环性能.
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| 关 键 词： | 熔融盐法 高密度 LiNi_(0.8)Co_(0.15) Ti_(0.05)O_2 Co-Ti共掺杂 |
Preparation of high density LiNi_(0.8)Co_(0.15)Ti_(0.05)O_2 as cathode material for lithium ion battery by a molten salt method |
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| TANG Hong-wei,ZHAO Fu-shuang,CHANG Zhao-rong. Preparation of high density LiNi_(0.8)Co_(0.15)Ti_(0.05)O_2 as cathode material for lithium ion battery by a molten salt method[J]. Journal of Functional Materials, 2009, 40(2) |
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| Authors: | TANG Hong-wei ZHAO Fu-shuang CHANG Zhao-rong |
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| Affiliation: | 1.College of Chemistry and Environmental Science;Henan Normal University;Xinxiang 453007;China;2.School Chemical Engineering and the Environment;Beijing Institute of Technology;Beijing 100080;China |
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| Abstract: | Co-Ti co-doped cathode material LiNi0.8Co0.15Ti0.05O2 was synthesized directly without artificial grinding and washing by a eutectic molten-salt mixture(0.38LiOH-0.62LiNO3) method.According to this method,the eutectic molten-salt mixture was self-mixed with high tap density precursor Co added Ni(OH)2 and TiO2 thoroughly at low temperature and then sintered at a certain temperature.The tap-density of LiNi0.8Co0.15Ti0.05O2 obtained 3.17g/cm3.According to X-ray diffraction analysis(XRD) and scanning electron m... |
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| Keywords: | LiNi0.8Co0.15Ti0.05O2 |
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