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Investigation on the effect of Na doping on structure and Li-ion kinetics of layered LiNi0.6Co0.2Mn0.2O2 cathode material
文献类型：期刊论文
| 作者 | Huang, ZJ (Huang, Zhenjun); Wang, ZX (Wang, Zhixing); Jing, Q (Jing, Qun); Guo, HJ (Guo, Huajun); Li, XH (Li, Xinhai); Yang, ZH (Yang, Zhihua)
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| 刊名 | ELECTROCHIMICA ACTA
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| 出版日期 | 2016 |
| 卷号 | 192期号:2页码:120-126 |
| 关键词 | Lithium-ion Batteries Na-doping Rate capabilty Li-ion diffusion coefficient First-principle calculation |
| 英文摘要 | Introducing the Na ion into the Ni-rich LiNi0.6Co0.2Mn0.2O2, Li1-xNaxNi0.6Co0.2Mn0.2O2 (x = 0, 0.01, 0.03) has been synthesized by high-temperature solid method. The effect of Na dopants on the structure, morphology, electrochemical properties, Li ion diffusion coefficient and the activation barriers has been extensively studied. Rietveld refinement results reveal that Na doping suppress cation mixing degree effectively and enlarge Li slab space. Electrochemical testing shows that Na-doped electrodes exhibit higher initial coulombic efficiency, good capacity retention and superior rate capability. Using experiments combined with first-principles calculations, we confirmed that the Na doping has enlarged Li slab space and then made the activation barrier of Li migration be reduced resulting higher Li+ diffusion coefficients. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000371143600015 |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/4681]  |
| 专题 | 新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室 新疆理化技术研究所_材料物理与化学研究室 |
| 作者单位 | 1.Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China 2.Shihezi Univ, Coll Sci, Dept Phys, Shihezi 832000, Peoples R China 3.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, 40-1 South Beijing Rd, Urumqi 830011, Peoples R China 4.Xinjiang Key Lab Elect Informat Mat & Devices, 40-1 South Beijing Rd, Urumqi 830011, Peoples R China 5.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, 40-1 South Beijing Rd, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, ZJ ,Wang, ZX ,Jing, Q ,et al. Investigation on the effect of Na doping on structure and Li-ion kinetics of layered LiNi0.6Co0.2Mn0.2O2 cathode material[J]. ELECTROCHIMICA ACTA,2016,192(2):120-126. |
| APA | Huang, ZJ ,Wang, ZX ,Jing, Q ,Guo, HJ ,Li, XH ,&Yang, ZH .(2016).Investigation on the effect of Na doping on structure and Li-ion kinetics of layered LiNi0.6Co0.2Mn0.2O2 cathode material.ELECTROCHIMICA ACTA,192(2),120-126. |
| MLA | Huang, ZJ ,et al."Investigation on the effect of Na doping on structure and Li-ion kinetics of layered LiNi0.6Co0.2Mn0.2O2 cathode material".ELECTROCHIMICA ACTA 192.2(2016):120-126. |
入库方式： OAI收割
来源：新疆理化技术研究所
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