标题:Polymerization-pyrolysis-assisted nanofabrication of solid solution Li1.2Ni0.13Co0.13Mn0.54O2for lithium-ion battery cathodes
作者:Zhao, Chenhao ;Kang, Wenpei ;Xue, Qingbin ;Shen, Qiang
作者机构:[Zhao, Chenhao ;Kang, Wenpei ;Xue, Qingbin ;Shen, Qiang ] Key Laboratory for Colloid and Interface Chemistry of Education Ministry, School of Chemistr 更多
通讯作者:Xue, Q
来源:Journal of Nanoparticle Research
出版年:2012
卷:14
期:12
DOI:10.1007/s11051-012-1240-7
摘要:Solid solution Li1.2Ni0.13Co0.13Mn0.54O2can be referred to as the homogeneous crystal phase composed of Li2MnO3and LiNi1/3Co1/3Mn1/3O2in equal portions. In this paper, a combination of the primary polymerization of acrylic acid (AA)monomers, the subsequent pyrolysis of PAApolymer gel at 450 °C, and the final high-temperature crystallization are used to prepare Li1.2Ni0.13Co0.13Mn0.54O2nanoparticles for their potential application as lithium-ion battery cathodes. The obtained results show that the powdered nanoparticles have an average particle size of 173.2 ± 66.2 nm and are composed of solvent and solute single-crystalline nanodomains with a superlattice ordering. As lithium-ion battery cathodes, these nanoparticles can possess a high initial discharge capacity of 290.7 mAh g-1and first cycle coulombic efficiency of 78.3 %at 0.08C, remain a reversible value of 182.7 mAh g-1at 0.4C over 60 charge-discharge cycles and reach a capacity of 122.5 mAh g-1at a high current rate of 4C. Furthermore, the charging-discharging cutoff voltage is also varied to discuss the ever-observed high electrochemical properties of the nanosized lithium-rich manganese-based solid solutions. © Springer Science+Business Media Dordrecht 2012.
收录类别:EI
资源类型:期刊论文
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