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Cation/Anion Codoped and Cobalt-Free Li-Rich Layered Cathode for High-Performance Li-Ion Batteries | |
2021-10-13 | |
发表期刊 | NANO LETTERS |
ISSN | 1530-6984 |
EISSN | 1530-6992 |
卷号 | 21期号:19页码:8370−8377 |
发表状态 | 已发表 |
DOI | 10.1021/acs.nanolett.1c02923 |
摘要 | Lithium-rich layered oxides have received great attention due to their high energy density as cathode material. However, the progressive structural transformation from layered to spinet phase triggered by transition-metal migration and the irreversible release of lattice oxygen leads to voltage fade and capacity decay. Her; we report a Fe, Cl codoped and Co-free Li-rich layered cathode with significantly improved structural stability. It is revealed that the Fe and Cl codoping can facilitate the Li-ion diffusion and improve the rate performance of the materials. Moreover, the calculations show that the structural stability is enhanced by Fe and Cl codoping. As a result, the Fe and Cl codopant reduces the irreversible release of lattice oxygen, mitigates voltage fade, and improves the first-cycle Coulombic efficiency. This work provides a low-cost, environmentally friendly, practical strategy for high-performance cathode materials. |
关键词 | lithium-rich layered oxides Fe codoping stability low cost |
收录类别 | SCIE ; EI |
语种 | 英语 |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
WOS记录号 | WOS:000709549100061 |
出版者 | AMER CHEMICAL SOC |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/128161 |
专题 | 物质科学与技术学院_博士生 物质科学与技术学院_PI研究组_于奕组 物质科学与技术学院_PI研究组_刘巍组 物质科学与技术学院_PI研究组_Franklin Jongmyung Kim组 物质科学与技术学院_硕士生 |
通讯作者 | Wei Liu |
作者单位 | ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院 |
第一作者的第一单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Nie Lu,Zeyu Wang,Xiaowen Zhao,et al. Cation/Anion Codoped and Cobalt-Free Li-Rich Layered Cathode for High-Performance Li-Ion Batteries[J]. NANO LETTERS,2021,21(19):8370−8377. |
APA | Nie Lu.,Zeyu Wang.,Xiaowen Zhao.,Shaojie Chen.,Yingjie He.,...&Wei Liu.(2021).Cation/Anion Codoped and Cobalt-Free Li-Rich Layered Cathode for High-Performance Li-Ion Batteries.NANO LETTERS,21(19),8370−8377. |
MLA | Nie Lu,et al."Cation/Anion Codoped and Cobalt-Free Li-Rich Layered Cathode for High-Performance Li-Ion Batteries".NANO LETTERS 21.19(2021):8370−8377. |
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