Study on the surface modification of spinel LiNi0.45Cr0.1Mn1.45O4
文献类型：期刊论文
| 作者 | Liu, Guoqiang1,2,8; Sun, Lizhu8; Tong, Zizheng3; Liu, Ru-Shi3,6,7; Wang, Bao4; Xia, Xinde5 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2020-04-25 |
| 卷号 | 821页码:8 |
| ISSN号 | 0925-8388 |
| 关键词 | Spinel LiNi0.45Cr0.1Mn1.45O4 Charge-discharge properties Surface modification Structure characteristics |
| DOI | 10.1016/j.jallcom.2019.153418 |
| 英文摘要 | A amorphous compound Li-Al-Ti-O is coated on the surface of spinel LiNi0.45Cr0.1Mn1.45O4. Different from other coatings, the coating layer and the bulk material are not simply connected. There is a transition region between the coating layer and the bulk material, in which no sudden change of lattice emerges. High-resolution transmission electron microscopy (HRTEM) shows that lattice matching is formed at the contact region between coating layer and bulk material. The Cr Kedge XANES spectra show that the local structure of Cr has not changed before and after coating. According to the electrochemical impedance measurement, the diffusion coefficient of lithium ion has no much changes after coating. Compared with the pristine materials, this coated materials exhibits improved cycle performance. After 700 charging and discharging cycles, the capacity retention rate reaches over 83%, and the Coulomb efficiency of each cycle is 99.5%. This coating structure undoubtedly increases the bonding strength between the coating layer and the bulk material, and also reduces the resistance of lithium ions passing through transition region. This coating lays a good foundation for the practical application of the spinel LiNi0.45Cr0.1Mn1.45O4. (C) 2019 Elsevier B.V. All rights reserved. |
| WOS关键词 | ELECTROCHEMICAL PERFORMANCE ; CATHODE MATERIAL ; LINI0.5MN1.5O4 ; IMPROVEMENT |
| 资助项目 | National Natural Science Foundation of China[51574081] ; Ministry of Science and Technology of Taiwan ; MOST[107-2113-M-002-008-MY3] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000512369200136 |
| 资助机构 | National Natural Science Foundation of China ; Ministry of Science and Technology of Taiwan ; MOST |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/39178]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liu, Guoqiang; Wang, Bao |
| 作者单位 | 1.Nankai Univ, Coll Chem, Key Lab Adv Energy Mat Chem, Minist Educ, Tianjin 300071, Peoples R China 2.Northeastern Univ, Sch Met, Liaoning Key Lab Met Sensor & Technol, Shenyang 110819, Liaoning, Peoples R China 3.Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 5.Guangzhou Great Power Energy & Technol Co Ltd, Guangzhou, Peoples R China 6.Natl Taipei Univ Technol, Grad Inst Mfg Technol, Taipei 106, Taiwan 7.Natl Taipei Univ Technol, Dept Mech Engn, Taipei 106, Taiwan 8.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Guoqiang,Sun, Lizhu,Tong, Zizheng,et al. Study on the surface modification of spinel LiNi0.45Cr0.1Mn1.45O4[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,821:8. |
| APA | Liu, Guoqiang,Sun, Lizhu,Tong, Zizheng,Liu, Ru-Shi,Wang, Bao,&Xia, Xinde.(2020).Study on the surface modification of spinel LiNi0.45Cr0.1Mn1.45O4.JOURNAL OF ALLOYS AND COMPOUNDS,821,8. |
| MLA | Liu, Guoqiang,et al."Study on the surface modification of spinel LiNi0.45Cr0.1Mn1.45O4".JOURNAL OF ALLOYS AND COMPOUNDS 821(2020):8. |
入库方式： OAI收割
来源：过程工程研究所
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