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
来源：Journal of Nanoparticle Research
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.