Solvothermal-Derived S-Doped Graphene as an Anode Material for Sodium-Ion Batteries
- Yanbian Univ., Yanji (China)
- Seoul National Univ. (Korea)
- Cornell Univ., Ithaca, NY (United States)
Sodium–ion batteries (SIBs) have attracted enormous attention in recent years due to the high abundance and low cost of sodium. However, in contrast to lithium–ion batteries, conventional graphite is unsuitable for SIB anodes because it is much more difficult to intercolate the larger Na ions into graphite layers. Therefore, it is critical to develop new anode materials for SIBs for practical use. Here, heteroatom–doped graphene with high doping levels and disordered structures is prepared using a simple and economical thermal process. The solvothermal–derived graphene shows excellent performance as an anode material for SIBs. It exhibits a high reversible capacity of 380 mAh g–1 after 300 cycles at 100 mA g–1, excellent rate performance 217 mAh g–1 at 3200 mA g–1, and superior cycling performance at 2.0 A g–1 during 1000 cycles with negligible capacity fade.
- Research Organization:
- Cornell Univ., Ithaca, NY (United States); Energy Frontier Research Centers (EFRC) (United States)
- Sponsoring Organization:
- Inst. for Basic Science (IBS) in Korea; Jilin Provincial Science and Technology Department; National Science Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-05CH11231; SC0001086
- OSTI ID:
- 1566324
- Journal Information:
- Advanced Science, Journal Name: Advanced Science Journal Issue: 5 Vol. 5; ISSN 2198-3844
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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