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Metal-Organic Framework-Based Fluorinated Carbon for Li Primary Battery
Hang Xu1, Zhihao Gui1, Runzhe Wang1
1Institute of Advanced Technology and Equipment, Beijing University of Chemical Technology, Beijing 100029, China.
Nanomaterials (Basel, Switzerland)
|February 12, 2026
Summary
Researchers developed a novel fluorinated carbon cathode for lithium batteries using ZIF-8. This material offers high energy density and improved conductivity, overcoming limitations in current energy storage technology.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Lithium/fluorinated carbon (CFx) batteries are promising for energy storage due to high energy density and long life.
- Poor conductivity of CFx cathodes at high fluorination levels hinders their performance.
Purpose of the Study:
- To develop a high-performance CFx cathode material.
- To overcome the conductivity limitations of traditional CFx cathodes.
Main Methods:
- Fabrication of ZIF-8-based fluorinated carbon via gas-phase fluorination and acid treatment.
- Characterization of the material's structure, surface area, and electrochemical properties.
Main Results:
- The synthesized HFG@ZIF-8 exhibited a high F/C ratio (1.62), large surface area (207 m² g⁻¹), and porous structure.
- Achieved a maximum specific capacity of 1143.4 mAh g⁻¹ and energy density of 2614.8 Wh kg⁻¹ at 0.02 C.
- Demonstrated superior Li⁺ transport efficiency, delivering 453.4 mAh g⁻¹ at 5 C with no voltage delay.
Conclusions:
- The ZIF-8-based fluorinated carbon presents an innovative strategy for high-performance CFx cathodes.
- The developed material addresses key limitations in conductivity for advanced energy storage applications.
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