Lithium Organic Battery and Manufacturing Method Thereof

Lithium Organic Battery with Peptide-Bonded Naphthoquinone Derivatives

This technology involves immobilizing the amine group of a naphthoquinone derivative (e.g., DANQ) onto the carboxyl group of a gas diffusion layer (GDL) via peptide bonding. This suppresses the dissolution of the organic active material into the electrolyte and facilitates rapid electron and lithium-ion transport through a low bandgap (approximately 2.7 eV).

Conventional quinone-based organic cathode materials have faced practical limitations due to rapid capacity degradation caused by high solubility in liquid electrolytes, low electrical conductivity, and slow redox kinetics.

By synthesizing 2,3-diamino-1,4-naphthoquinone (DANQ) and immobilizing it onto the surface of a carboxyl-modified porous gas diffusion layer (GDL-COOH) via peptide bonding, this technology maximizes structural stability and electrochemical reversibility, thereby enhancing material competitiveness in the secondary battery electrolyte sector.

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Key Features:

• A cathode for a secondary battery characterized by including a functional group represented by a specific chemical formula
• Configuration for immobilizing the amine group of a naphthoquinone derivative to the carboxyl group on the surface of a gas diffusion layer via peptide bonding
• A method for manufacturing a cathode for a secondary battery that immobilizes a naphthoquinone derivative onto a substrate to suppress the dissolution of the organic active material into the electrolyte
• Configuration of a lithium organic battery that achieves rapid electron and lithium-ion transport through a low bandgap

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