| Improving the cathode properties of Ni-rich LiNi0.6Co0.2Mn0.2O2 at high voltages under 5 C by Li2SiO3 coating and Si4+ doping | |
Peng, Zhengjun ; Yang, Guowei; Li, Faqiang; Zhu, Zenghu; Liu, Zeyu
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| 2018-09-25 | |
| 发表期刊 | JOURNAL OF ALLOYS AND COMPOUNDS
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| ISSN | 0925-8388 |
| 卷号 | 762页码:827-834 |
| 摘要 | Cathode materials based on zLi(2)SiO(3)@LiNi0.6Co0.2Mn0.2O2 (z = 0, 0.03, 0.05, 0.08) (where @ denotes coated on the surface of) have been successfully prepared via a syn-lithiation strategy. The cycling performance of LiNi0.6Co0.2Mn0.2O2 has been effectively enhanced by coating a Li2SiO3 thin film. Compared to the 81 mAh/g discharge capacity of the pristine materials, the 5 mol% Li2SiO3-coated LiNi0.6Co0.2Mn0.2O2 electrode exhibits 31% higher discharge capacity between 2.5 V and 4.5 Vat a rate of 5 C. The reason for the improved cycling performance of LiNi0.6Co0.2Mn0.2O2 is Li2SiO3 coating and Si4+ doping, which stabilizes the structure, suppresses the direct contact between the active materials and electrolytes, enhances lithium ion diffusion at the electrode/electrolyte interface, and prevents the pulverization of active materials during repeated charging/discharging. (C) 2018 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.jallcom.2018.05.226 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34486 |
| 专题 | 盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Peng, Zhengjun,Yang, Guowei,Li, Faqiang,et al. Improving the cathode properties of Ni-rich LiNi0.6Co0.2Mn0.2O2 at high voltages under 5 C by Li2SiO3 coating and Si4+ doping[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,762:827-834. |
| APA | Peng, Zhengjun,Yang, Guowei,Li, Faqiang,Zhu, Zenghu,&Liu, Zeyu.(2018).Improving the cathode properties of Ni-rich LiNi0.6Co0.2Mn0.2O2 at high voltages under 5 C by Li2SiO3 coating and Si4+ doping.JOURNAL OF ALLOYS AND COMPOUNDS,762,827-834. |
| MLA | Peng, Zhengjun,et al."Improving the cathode properties of Ni-rich LiNi0.6Co0.2Mn0.2O2 at high voltages under 5 C by Li2SiO3 coating and Si4+ doping".JOURNAL OF ALLOYS AND COMPOUNDS 762(2018):827-834. |
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| Improving the cathod（5076KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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