A Universal Strategy toward Air‐Stable and High‐Rate O3 Layered Oxide Cathodes for Na‐Ion Batteries
Fujian Normal University · Chinese Academy of Sciences · +2 more institutions
Abstract
Abstract As one of the fascinating high capacity cathodes, O3‐type layered oxides usually suffer from their intrinsic air sensitivity and sluggish kinetics originating from the spontaneous lattice Na extraction during air exposure and high tetrahedral site energy of Na + diffusion transition state. What is worse, the improvement on the two handicaps is hard to simultaneously realize because of the contradiction between Na containment suggested in air stability mechanism and enhanced Na diffusion mentioned in kinetics strategy. Herein, it is shown that a simple strategy of introducing proper Na vacancies into lattice can simultaneously realize a dual performance improvement. Na vacancies decrease the charge…
Citation impact
- FWCI
- 19.57
- Percentile
- 100%
- References
- 55
Authors
11- XYXinguang Yuan
Fujian Normal University, Chinese Academy of Sciences, Institute of Chemistry
- YGYu‐Jie Guo
Chinese Academy of Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
- LGLu Gan
Fujian Normal University
- XYXinan Yang
University of Chinese Academy of Sciences
- WHWei‐Huan He
Chinese Academy of Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
Topics & keywords
- Materials science
- Cathode
- Lattice (music)
- Ion
- Oxide
- Diffusion barrier
- Kinetics
- Chemical physics
- Affordable and clean energy