Realizing High-Performance Cathodes with Cationic and Anionic Redox Reactions in High-Sodium-Content P2-Type Oxides for Sodium-Ion Batteries

Liu, Qiong1; Zheng, Wei2; Liu, Guiyu2; Hu, Jing2; Zhang, Xuan1; Han, Ning1; Wang, Zhenyu2; Lu, Zhouguang2; Fransaer, Jan1; Luo, Jiangshui3

2023-02-01

10.1021/acsami.2c20642

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

P2-type layered transition-metal oxides with anionic redox reactions are promising cathodes for sodium-ion batteries. In this work, a high-sodium content P2-type Na7/9Li1/9Mg1/9Cu1/9Mn2/3O2 (NLMC) cathode material is prepared by substituting Li/Mg/Cu for Mn sites in Na2/3MnO2. The Li/Mg ions trigger the anionic redox reaction, while the Cu ions enhance the structure stability during electrochemical cycling. As a result, the oxide has a high reversible capacity of 225 mAh g-1 originating from both cationic and anionic redox activities with a capacity retention of 77% after 100 cycles. The migration energy barrier and Na ion diffusion kinetics are studied using density functional theory (DFT) calculations and the galvanostatic intermittent titration technique. Furthermore, X-ray diffraction, DFT, scanning electron microscopy, and transmission electron microscopy are applied to reveal the structural evolution and charge compensation of NLMC, providing a thorough understanding of the structural and morphology evolution of Na-deficient oxides during cycling. The results are inspiring for the design of a high-Na content P2-type layered oxide cathode for sodium-ion batteries.

sodium-ion batteries cathode materials anionic redox reaction Na-deficient oxides phase transition

SCI

英语

通讯

F.R.S.-FNRS under the Excellence of Science (EOS) programme-ECOBAT[40007515] ; Sichuan Science and Technology Program["2022ZYD0016","2023JDRC0013"] ; National Natural Science Foundation of China["21875097","U22A20439","21776120"] ; Sichuan University[YJ202089] ; Basic Research Project of the Science and Technology Innovation Commission of Shenzhen[JCYJ20220818100418040] ; Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials[ZDSYS20200421111401738] ; Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies[EEST2021-1] ; China Scholarship Council[201808410368]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000929845600001

AMER CHEMICAL SOC

Web of Science

1.Katholieke Univ Leuven, Dept Mat Engn, B-3001 Leuven, Belgium
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shen Zhen 518055, Peoples R China
3.Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610065, Peoples R China

Liu, Qiong,Zheng, Wei,Liu, Guiyu,et al. Realizing High-Performance Cathodes with Cationic and Anionic Redox Reactions in High-Sodium-Content P2-Type Oxides for Sodium-Ion Batteries[J]. ACS Applied Materials & Interfaces,2023.

Liu, Qiong.,Zheng, Wei.,Liu, Guiyu.,Hu, Jing.,Zhang, Xuan.,...&Luo, Jiangshui.(2023).Realizing High-Performance Cathodes with Cationic and Anionic Redox Reactions in High-Sodium-Content P2-Type Oxides for Sodium-Ion Batteries.ACS Applied Materials & Interfaces.

Liu, Qiong,et al."Realizing High-Performance Cathodes with Cationic and Anionic Redox Reactions in High-Sodium-Content P2-Type Oxides for Sodium-Ion Batteries".ACS Applied Materials & Interfaces (2023).