Improved electrochemical property of Ni-rich LiNi0.6Co0.2Mn0.2O2 cathode via in-situ ZrO2 coating for high energy density lithium ion batteries
文献类型：期刊论文
| 作者 | Yao, L; Liang, FQ; Jin, J; Chowdari, BVR; Yang, JH; Wen, ZY |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020-06-01 |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2020.124403 |
| 文献子类 | Article |
| 英文摘要 | Surface coating is an effective routine to improve the cycling stability and reversible capacity of nickel-rich LiNi0.6Co0.2Mn0.2O2 (NCM622) cathode in lithium ion batteries (LIBs), especially at high voltage. Herein, an amorphous Zirconium dioxide (ZrO2) coating modified NCM622 cathode materials are successfully prepared by in-situ method based on UiO-66. As the cathode material for LIBs, the in-situ ZrO2 coated NCM622 retains 82.5% capacity retentions over 2.8-4.5 V after 100 cycles, higher than those for the pristine NCM622, which are only 52.4%. Such significant improvements are mainly attributed that the homogeneous ZrO2 coating effectively stabilized the cathode/electrolyte interface. It is confirmed that the uniform ZrO2 coating layer suppressed the structural degradation induced by detrimental side reactions with electrolyte. Meanwhile, the unique porous framework of UiO-66 also provides massive active sites on the NCM622 surface, keeping the lithium diffusion even at a high level upon cycling. The in-situ synthesized method provides an available and simple modifying strategy for high performance ZrO2-coated cathode materials at high voltage. |
| WOS关键词 | CYCLING PERFORMANCE ; VOLTAGE ; ELECTROLYTE ; STABILITY ; LAYER ; UIO-66 ; OXIDES ; CHARGE |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28036]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Yao, L,Liang, FQ,Jin, J,et al. Improved electrochemical property of Ni-rich LiNi0.6Co0.2Mn0.2O2 cathode via in-situ ZrO2 coating for high energy density lithium ion batteries[J]. CHEMICAL ENGINEERING JOURNAL,2020. |
| APA | Yao, L,Liang, FQ,Jin, J,Chowdari, BVR,Yang, JH,&Wen, ZY.(2020).Improved electrochemical property of Ni-rich LiNi0.6Co0.2Mn0.2O2 cathode via in-situ ZrO2 coating for high energy density lithium ion batteries.CHEMICAL ENGINEERING JOURNAL. |
| MLA | Yao, L,et al."Improved electrochemical property of Ni-rich LiNi0.6Co0.2Mn0.2O2 cathode via in-situ ZrO2 coating for high energy density lithium ion batteries".CHEMICAL ENGINEERING JOURNAL (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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