Journal of Jishou University(Natural Sciences Edition)

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Effect of Glucose on Li1.2Ni0.2Mn0.6O2 Lithium-Rich Manganese Cathode Materials

WANG Lei,XIANG Yanhong,LIAO Qijun,TIAN Lin,WU Xianwen,WU Xianming,XIONG Lizhi,HE Zeqiang   

  1. (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)
  • Online:2019-05-25 Published:2019-06-04


The lithium-rich manganese cathode material Li1.2Ni0.2Mn0.6O2was prepared by sol-gel method.In the early stage of metalion solution preparation,the structure,morphology and electrochemistry of Li1.2Ni0.2Mn0.6O2were 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%.

Key words: Li1.2Ni0.2Mn0.6O2, glucose, electrochemical performance, magnification

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