Enhancing Thermal and High-Voltage Cycling Stability of Ni-Rich Layered Cathodes through a Ti-Doping-Induced Surface-Disordered Structure
文献类型：期刊论文
| 作者 | Zhang, Hong; Wu, Kang; Li, Na; Deng, Xin; Jiao, Jianyue; Zhao, Enyue; Yin, Wen ; Wang, Baotian; Zhao, Jinkui; Xiao, Xiaoling
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| 刊名 | ACS APPLIED ENERGY MATERIALS
 |
| 出版日期 | 2022 |
| 卷号 | 5期号:10页码:12673-12681 |
| 关键词 | Ni-rich layered oxides thermal stability Ti doping surface-disordered structure stable cathode electrolyte interphase |
| ISSN号 | 2574-0962 |
| DOI | 10.1021/acsaem.2c02305 |
| 文献子类 | Article; Early Access |
| 英文摘要 | Due to the high-energy density and potential cost advantage, Ni-rich layered oxide cathodes have attracted attention in electric vehicles. However, the inferior thermal stability and long-term cycling stability in a deeply charged state seriously restrict their large-scale applications. The oxygen topotactic lattice structure degradation caused by the irreversible anionic redox reaction has been considered one of the main reasons that cause the abovementioned electrochemical issues. Herein, we propose a modification strategy by constructing a surface-disordered structure to improve the thermal and high-voltage oxygen lattice structure stability of Ni-rich layered cathodes. Density functional theory calculations indicate that Ti4+ with a d(0) electronic structure can be used as the inducer of surfacedisordered structures. We directly demonstrate the successful design of a surface-disordered structure on the LiNi0.8Mn0.1Co0.1O2 model compound through neutron diffraction and scanning transmission electron microscopy measurements. The constructed surface-disordered structure can enhance the thermal and high-voltage cycling stability of LiNi0.8Mn0.1Co0.1O2. Furthermore, in situ X-ray diffraction and surface structure analyses indicate that this surface-disordered structure can improve the reversibility of bulk structure transition and stability of the formed cathode electrolyte interphase. This facile construction method of the surface-disordered structure provides a reference for industry and other layered oxide cathodes. |
| 电子版国际标准刊号 | 2574-0962 |
| 语种 | 英语 |
| WOS记录号 | WOS:000869784300001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299057]  |
| 专题 | 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Hong,Wu, Kang,Li, Na,et al. Enhancing Thermal and High-Voltage Cycling Stability of Ni-Rich Layered Cathodes through a Ti-Doping-Induced Surface-Disordered Structure[J]. ACS APPLIED ENERGY MATERIALS,2022,5(10):12673-12681. |
| APA | Zhang, Hong.,Wu, Kang.,Li, Na.,Deng, Xin.,Jiao, Jianyue.,...&Xiao, Xiaoling.(2022).Enhancing Thermal and High-Voltage Cycling Stability of Ni-Rich Layered Cathodes through a Ti-Doping-Induced Surface-Disordered Structure.ACS APPLIED ENERGY MATERIALS,5(10),12673-12681. |
| MLA | Zhang, Hong,et al."Enhancing Thermal and High-Voltage Cycling Stability of Ni-Rich Layered Cathodes through a Ti-Doping-Induced Surface-Disordered Structure".ACS APPLIED ENERGY MATERIALS 5.10(2022):12673-12681. |
入库方式： OAI收割
来源：高能物理研究所
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