Weakly Solvating Few-Layer-Carbon Interface toward High Initial Coulombic Efficiency and Cyclability Hard Carbon Anodes
Peking University · Beijing National Laboratory for Molecular Sciences · +2 more institutions
Abstract
The carbonaceous anodes in sodium ion batteries suffer from low initial Coulombic efficiency (ICE) and poor cyclability due to rampant solid electrolyte interface (SEI) growth. The concept of the weakly solvating electrolyte (WSE) has been popularized for SEI regulation on the anode by adjusting the cation solvation structure. Nevertheless, the effects on the solvation sheath from the electrode/electrolyte interface are ignored in most WSE applications. In this work, we extend the WSE from the bulk electrolyte to the electrolyte/carbon interface. By recycling asphalt wastes into sp2 C enriched few-layer carbon on hard carbon, a weakly solvating interface is fabricated with lower adsorption energy to…
Citation impact
- FWCI
- 22.55
- Percentile
- 100%
- References
- 59
Authors
2- SZSiwei Zhao
Peking University, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Application
- FHFuqiang HuangCorresponding
Shanghai Jiao Tong University, Peking University, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Application
Topics & keywords
- Faraday efficiency
- Electrolyte
- Anode
- Solvation
- Carbon fibers
- Chemical engineering
- Battery (electricity)
- Materials science