Enlarging the redox energy level gap to improve the structural stability in wide-voltage layered sodium cathodes

Zixin Liang; Ziheng Zhang; Jiangtao Yu; Cheng Yang; Huimin Zhang; Zhiwei Yu; Na Jiang; Mingzhe Chen; Kai Zhang; Limin Zhou

doi:10.1039/D5CC04809E

Enlarging the redox energy level gap to improve the structural stability in wide-voltage layered sodium cathodes

Zixin Liang,†^a Ziheng Zhang,†^b Jiangtao Yu,†^b Cheng Yang,^a Huimin Zhang,^b Zhiwei Yu,^b Na Jiang,^b Mingzhe Chen,

*^a Kai Zhang

*^b and Limin Zhou

*^a

Author affiliations

* Corresponding authors

^a School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
E-mail: chenmingzhe@njust.edu.cn, lmzhou@njust.edu.cn

^b State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Academy of Advanced Interdisciplinary Studies, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
E-mail: zhangkai_nk@nankai.edu.cn

Abstract

Extending the voltage window is beneficial for increasing the energy density, but it also imposes more complex structural evolution in P2-type layered oxides. This study enables reversible redox chemistry in a wide voltage range by enlarging the energy level gap between Fe and Mn 3d orbitals, which provides an essential reference for optimizing sodium-ion battery cathodes.

Chemical Communications

Enlarging the redox energy level gap to improve the structural stability in wide-voltage layered sodium cathodes

Abstract

Supplementary files

Article information

Download Citation

Permissions

Enlarging the redox energy level gap to improve the structural stability in wide-voltage layered sodium cathodes

Social activity

Search articles by author

Spotlight

Advertisements