| 葡萄糖的添加对富锂锰基正极材料Li1.2Ni0.2Mn0.6O2的影响 |
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| 引用本文： | 王雷,向延鸿,廖启军,田林,吴贤文,吴显明,熊利芝,何则强.葡萄糖的添加对富锂锰基正极材料Li1.2Ni0.2Mn0.6O2的影响[J].吉首大学学报(自然科学版),2019,40(3):47-52. |
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| 作者姓名： | 王雷 向延鸿 廖启军 田林 吴贤文 吴显明 熊利芝 何则强 |
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| 作者单位： | (1.吉首大学 物理与机电工程学院，湖南 吉首 416000；2.锰锌钒产业技术湖南省2011协同中心，湖南 吉首 416000；3.吉首大学 化学化工学院，湖南 吉首 416000；4.吉首大学 生物资源与环境科学学院 湖南 吉首 416000) |
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| 基金项目： | 国家自然科学基金资助项目( 51662010，51364009，51262008，51472107 和 51672104);湖南省教育厅优秀青年项目(16B209和15B190);湘西自治州基础理论研究项目（2018SF5016）吉首大学大学生研究性学习与创新实验计划;吉首大学校级理工科研究项目(JDX17040,JDX16008,JDX16009) |
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| 摘 要： | 采用溶胶凝胶法制备合成富锂锰基正极材料Li1.2Ni0.2Mn0.6O2，在前期配制金属离子溶液时，通过添加不同量的葡萄糖（葡萄糖添加量分别为试剂总质量的0，6%，12%，36%，48%）来分析其对Li1.2Ni0.2Mn0.6O2的结构、形貌、电化学性能以及倍率性能的影响.恒流充放电测试结果显示，少量葡萄糖（6%，12%）加入，可以明显提高材料首次放电比容量.0.05C首次放电比容量由未加入葡萄糖材料的174 mAh/g提升至添加12%葡萄糖材料的265.9 mAh/g.倍率性能测试结果显示，葡萄糖的加入可以明显提高材料倍率性能.其中葡萄糖添加量为48%的材料倍率性能最好，首次放电比容量达到141 mAh/g，经过0.05C，0.1C，0.2C，0.5C，1C循环测试后再进行0.1C循环测试30次，放电比容量为110 mAh/g，容量保持率为78%.
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| 关 键 词： | Li1.2Ni0.2Mn0.6O2 葡萄糖 电化学性能 倍率性能 |
Effect of Glucose on Li_(1.2)Ni_(0.2)Mn_(0.6)O_2 Lithium-Rich Manganese Cathode Materials |
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| WANG Lei,XIANG Yanhong,LIAO Qijun,TIAN Lin,WU Xianwen,WU Xianming,XIONG Lizhi,HE Zeqiang.Effect of Glucose on Li_(1.2)Ni_(0.2)Mn_(0.6)O_2 Lithium-Rich Manganese Cathode Materials[J].Journal of Jishou University(Natural Science Edition),2019,40(3):47-52. |
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| Authors: | WANG Lei XIANG Yanhong LIAO Qijun TIAN Lin WU Xianwen WU Xianming XIONG Lizhi HE Zeqiang |
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| Institution: | (1.School of Physics and Mechanical Engineering,Jishou University,Jishou 416000,Hunan China;2.Hunan 2011 Collaborative Center of Manganese,Zinc and Vanadium Industry Technology,Jishou 416000,Hunan China;3.School of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China;4. School of Biological Resources and Environmental Sciences,Jishou University,Jishou 416000,Hunan China) |
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| Abstract: | The lithium-rich manganese cathode materialLi1.2Ni0.2Mn0.6O2was prepared by sol-gel method.In the early stage of metalion solution preparation，the structure,morphology and electrochemistry ofLi1.2Ni0.2Mn0.6O2were analyzed with addition of x=0,6%,12%,36%,48% glucose(x=glucose quality/metal reagent quality).Addition can significantly increase the material's initial discharge specific capacity.The initial discharge specific capacity of 0.05C increased from 174 mAh/g without added glucose material to 265.9 mAh/g with added glucose x=12%.The rate performance test results show that the addition of glucose can significantly improve the material rate performance.The material with added glucose x=48% has the best rate performance.The initial discharge specific capacity reached 141 mAh/g.After the cycle test of 0.05C,0.1C,0.2C,0.5C,and 1C,the recycling test was performed 30 times for 0.1C,the specific discharge capacity was 110 mAh/g,and the capacity retention rate was 78%. |
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| Keywords: | 1 2Ni0 2Mn0 Li1" target="_blank">6O2')">Li1 2Ni0 2Mn0 6O2 glucose electrochemical performance magnification |
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