Enhancing Robustness and Charge Transfer Kinetics of Sodium-Ion Batteries through Introduction of Anionic Anchoring Separators
Donghua University · Division of Materials Science and Engineering · +3 more institutions
Abstract
Ionic transport critically dictates the performance of the batteries. Here, we proposed an anion anchoring strategy for enhancing Na+ transport kinetics that was based on introducing a separator with a positive surface potential. Besides, we developed a nuclear magnetic resonance-assisted Hittorf approach to address the limitation of the traditional Bruce–Vincent approach itself in order to accurately quantify the migration dynamics of anions on the time scale. Results indicate that this strategy effectively anchors free anions and increases the proportion of solvent-separated ion pairs in the bulk, reduces the cation transfer energy barrier at the anode, and mitigates parasitic reactions at the cathode. The…
Citation impact
- FWCI
- 28.64
- Percentile
- 100%
- References
- 61
Authors
9- XLXiao Li
Donghua University, Division of Materials Science and Engineering
- TZTao Zhang
Donghua University, Division of Materials Science and Engineering
- YZYilin Zhao
Donghua University, Division of Materials Science and Engineering
- XZXiao‐Qing Zhu
Donghua University, Division of Materials Science and Engineering
- AGAimin Ge
Donghua University, Division of Materials Science and Engineering
Topics & keywords
- Chemistry
- Kinetics
- Ion
- Anchoring
- Charge (physics)
- Robustness (evolution)
- Sodium
- Organic chemistry
- Affordable and clean energy