Understanding the Sodium Storage Behavior of Closed Pores/Carbonyl Groups in Hard Carbon
Central South University of Forestry and Technology · Central South University · +1 more institution
Abstract
Hard carbon (HC) is a promising anode material for sodium-ion batteries. However, the intrinsic relationship between the closed pores/surface groups and sodium storage performance has been unclear, leading to difficulties in targeted regulation. In this study, renewable tannin extracts were used as raw materials to prepare HC anodes with abundant tunable closed pores and carbonyl groups through a pyrolytic modulation strategy. Combining ex situ characterizations reveals that closed pores and carbonyl groups are regulated by the pyrolytic process. Further, it is demonstrated that the plateau region is mainly contributed by the closed pores; highly stable fluorine-rich solid electrolyte interphase compositions…
Citation impact
- FWCI
- 28.39
- Percentile
- 100%
- References
- 46
Authors
6- QHQian Hu
Central South University of Forestry and Technology, Central South University
- LXLaiqiang XuCorresponding
Central South University of Forestry and Technology, Central South University, Changsha University of Science and Technology
- GLGonggang Liu
Central South University of Forestry and Technology, Central South University
- JHJinbo HuCorresponding
Central South University of Forestry and Technology, Central South University
- XJXiaobo Ji
Central South University
Topics & keywords
- Materials science
- Carbon fibers
- Chemical engineering
- Sodium
- Nanotechnology
- Organic chemistry
- Chemistry
- Composite material