MANUFACTURING METHOD OF ELECTRODE MATERIAL FOR LITHIUM METAL BATTERY ANODES

Stability-enhanced material for lithium metal anode

This technology is about the manufacturing method of the electrode material for the negative electrode of lithium metal secondary battery.

The use of lithium metal as the negative electrode for high-performance next-generation secondary batteries is attracting attention, but it has stability problems such as ignition and explosion due to dendrite metal growth. To solve these problems, this technology proposes a method of synthesizing nitrogen-doped pseudo-capacitance nanocarbon through arc discharge.

This technology proposes a method of synthesizing nitrogen-doped pseudo-capacitance nanocarbon through arc discharge. It is expected to contribute to the development of the secondary battery industry as a groundbreaking lithium metal secondary battery anode electrode that can not only improve the performance of secondary batteries by reducing phase transition resistance and concentration resistance, but also secure high coulombic efficiency and stability even during repeated charge and discharge cycling through secondary battery electrodes with a solid electrolyte interface layer with high ion conductivity.

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Key Features:

• Synthesis of pseudo-capacitance nanocarbon doped with nitrogen through arc discharge on graphite material
• Performing pre-lithiation process based on lithium metal on nanocarbon
• Nanocarbon with doped three-dimensional nano-porous structure
• Formation of lithium-containing inorganic solid electrolyte interfacial layer (L I-SEI) on the surface of nanocarbon

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This technology was developed through the support of the National Research Foundation of Korea's research project to identify the formation mechanism and redox characteristics of highly functional pyropolymers rich in pi electrons.

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