Enhancing the cycling stability of Co-free high-Ni layered cathodes through MgO surface engineering
A magnesium oxide (MgO) coating strategy is proposed for improving the cobalt-free high-nickel LiNi<sub>0.9</sub>Mn<sub>0.1</sub>O<sub>2</sub> cathode. It is revealed that a MgO coating can stabilize reversible Ni<sup>3+</sup>/Ni<sup>4+</sup> redox and suppress structural degradation. The MgO coated LiNi<sub>0.9</sub>Mn<sub>0.1</sub>O<sub>2</sub> exhibits a promising capacity retention of 66.67% after 1000 cycles at 1C rate in a wide voltage range of 2.8-4.4 V.
Authors
- Huan Ni
- Kai Wu (ORCID: https://orcid.org/0000-0003-4321-7819)
- Rui-Jie Luo
- Chong‐Yu Du
- C.Y. Tam
- Yong‐Ning Zhou (ORCID: https://orcid.org/0000-0002-9791-3468)
- Zhe Qian
- Cheng Zhang (ORCID: https://orcid.org/0000-0002-9882-1952)
- Hang Wang (ORCID: https://orcid.org/0000-0003-0881-0553)
- Shiyong Li (ORCID: https://orcid.org/0000-0002-3215-7278)
- Zhe Mei
- Mingxuan Yang (ORCID: https://orcid.org/0000-0001-5141-6290)
- Jie Zeng (ORCID: https://orcid.org/0000-0001-8596-2644)
- Zi-Ting Zhou
- Xiang Yin (ORCID: https://orcid.org/0009-0002-9911-347X)
- Yue Gu
- Liu Na (ORCID: https://orcid.org/0000-0003-0751-500X)
Institutions
- Fudan University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc03625a
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Key Research and Development Program of China