Ni‐Single Atoms Modification Enabled Kinetics Enhanced and Ultra‐Stable Hard Carbon Anode for Sodium‐Ion Batteries
China Three Gorges University · Peking University · +2 more institutions
Abstract
Abstract Hard carbon with randomly oriented interlayers is the most promising candidate for the anode of commercial sodium‐ion batteries (SIBs). Nevertheless, its sluggish sodium storage kinetics and unsatisfactory cycling stability are bottlenecks to its implementation. Herein, a metal‐single atom modification strategy is proposed to construct a Ni‐single atoms modified N, P co‐doped hard carbon (Ni‐NPC) with a Ni content of ≈5.65 wt%. As an anode for SIBs, Ni‐NPC exhibits far superior initial Coulombic efficiency, reversible specific capacity, rate capability, and cycling stability to N, P co‐doped hard carbon. Combining in situ EIS and ex‐situ XPS,this study reveals that Ni‐single atoms modulate the…
Citation impact
- FWCI
- 28.67
- Percentile
- 100%
- References
- 43
Authors
8- DQDaping Qiu
China Three Gorges University, Peking University, China Energy Engineering Corporation (China), University of Science and Technology Beijing
- WZWanting Zhao
Peking University, University of Science and Technology Beijing
- BZBiao Zhang
Peking University, University of Science and Technology Beijing
- MTMuhammad Tayyab Ahsan
Peking University, University of Science and Technology Beijing
- YWYuehui Wang
China Three Gorges University, China Energy Engineering Corporation (China)
Topics & keywords
- Materials science
- Anode
- Kinetics
- Ion
- Sodium
- Carbon fibers
- Chemical engineering
- Chemical physics