※ Specifications, concentration, and MOQ can be adjusted through consultation according to the user's processing and application.
CQD: a next-generation functional material made of ultrafine carbon particles
CQDs (Carbon Quantum Dots) are ultrafine, carbon-based nanoparticles roughly one hundred-thousandth the width of a human hair. Drawing on the diverse functional properties that emerge at this ultrafine scale, they are a next-generation carbon nanomaterial applied across a wide range of industries.
CQDs are an eco-friendly carbon material that uses no hazardous heavy metals such as cadmium (Cd), offering high stability and cost-effectiveness.
In particular, they combine electrical conductivity capable of providing anti-static performance with the ability to absorb the full UVA, UVB, and UVC spectrum — making them useful across diverse fields such as battery separator coatings, functional cosmetics, and conductive coatings.
Battery Applications
Battery separator coating solution
A functional coating technology using CQDs that helps enhance the performance and stability of the separator.
Enhanced conductivity and interfacial properties
Leveraging excellent electrical conductivity, it improves the electrode–separator interface, contributing to better electrochemical performance.
Reinforced separator stability
It increases the structural stability of the separator, helping maintain reliable performance through repeated charge and discharge cycles.
Improved fast charge/discharge performance
By creating a smooth ion-transport environment, it raises charge/discharge efficiency and suppresses lithium dendrite formation, contributing to greater battery safety and longer service life.
Cosmetic Applications
Full-spectrum UV protection
It effectively absorbs ultraviolet light across the full UVA, UVB, and UVC spectrum, protecting the skin from UV exposure.
Antioxidant function
It effectively scavenges reactive oxygen species (ROS), protecting the skin from oxidative stress and helping maintain a healthy skin environment.
A safe carbon-based material
As a carbon-based material free of hazardous heavy metals, it offers excellent biosafety and stability.
Skin-cooling effect
It lowers skin-surface temperature to ease the heat sensation from UV exposure and provide a pleasant feel.