Recent Advances in Developing High-Performance Anode for Potassium-Ion Batteries based on Nitrogen-Doped Carbon...

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Carbon-based materials are promising anodes for potassium-ion batteries (PIBs) due to their low potential, stability, and sustainability.
• Current carbon anodes face limitations in high-rate performance and capacity owing to sluggish kinetics.
• Nitrogen doping is an effective strategy to overcome these limitations in carbon anodes.

Purpose of the Study:

• To systematically review the types, functions, and applications of nitrogen doping in carbon materials for PIBs.
• To provide a fundamental understanding of how different nitrogen doping types impact anode performance.
• To summarize recent advances in synthesis, properties, and applications of nitrogen-doped carbon anodes.

Main Methods:

• Literature review and synthesis of existing research on nitrogen-doped carbon materials for PIBs.
• Analysis of the impact of various nitrogen doping configurations on electrochemical performance.
• Overview of synthesis methods and application-specific performance data.

Main Results:

• Nitrogen doping significantly improves the rate capability and specific capacity of carbon anodes for PIBs.
• Different types of nitrogen doping (e.g., pyridinic, pyrrolic, graphitic) exhibit distinct effects on electrochemical properties.
• Nitrogen-doped carbons serve effectively as both active electrode materials and performance-enhancing modifications.

Conclusions:

• Nitrogen doping is a crucial strategy for developing high-performance carbon anodes for potassium-ion batteries.
• Understanding the specific roles of different nitrogen dopants is key to optimizing anode design.
• Further research should focus on advanced synthesis techniques and exploring novel applications of N-doped carbons in PIBs.