Nonmetallic Se/N Co‐Doped Amorphous Carbon Anode Collaborates to Realize Ultra‐High Capacity and Fast Potassium Storage for Potassium Dual‐Ion Batteries
Guilin University of Aerospace Technology · Guilin University of Technology · +5 more institutions
Abstract
Abstract Heteroatom doping in carbon‐based anode materials is crucial to improve their capacity and promoting the practical application of low‐cost potassium‐ion batteries (KIBs). Herein, the selenium/nitrogen co‐doped amorphous carbon nanocluster (SeN‐ACN) anodes exhibit an ultra‐high reversible capacity of 621 mAh g −1 at 0.75 C (225 mA g −1 ) and a capacity retention of 93% after 2000 cycles at 5 C, which represent a remarkable achievement in potassium storage in nonmetallic doped carbon materials. This is attributed to the synergistic effects of Se/N co‐doping and their anchoring effects on potassium ions. As a proof of concept, a potassium‐based dual‐ion battery (K‐DIB), which consists of a SeN‐ACN anode…
Citation impact
- FWCI
- 20.26
- Percentile
- 100%
- References
- 57
Authors
8- SGShuhua Guan
Guilin University of Aerospace Technology, Guilin University of Technology, Shenzhen Institutes of Advanced Technology, Guilin University of Electronic Technology
- JZJiwei Zhou
University of Science and Technology of China, Shenzhen Institutes of Advanced Technology, Wuhan Engineering Science & Technology Institute
- SSShuling Sun
University of Science and Technology of China, Shenzhen Institutes of Advanced Technology, Wuhan Engineering Science & Technology Institute
- QPQiaoling Peng
University of Science and Technology of China, Shenzhen Institutes of Advanced Technology, Wuhan Engineering Science & Technology Institute
- XGXiuli Guo
Shenzhen Institutes of Advanced Technology
Topics & keywords
- Anode
- Materials science
- Potassium
- Heteroatom
- Carbon fibers
- Cathode
- Doping
- Battery (electricity)