Core-Shell Composite Conductive Functional Powders

With the rapid adoption of 5G/6G communications, new energy vehicles, and smart electronics, electromagnetic compatibility (EMC) has become a mandatory technical requirement, triggering explosive growth in conductive fillers and shielding materials.

UrbanMines offers two coreshell composite conductive powders to cover diverse applications from photovoltaic cost reduction to harshenvironment electromagnetic shielding:

· Silvercoated copper composite powder

· Silvercoated nickel composite powder

Silver-Coated Copper Composite Powder

Produced via advanced electroless plating, a dense and uniform silver layer is coated onto ultrafine copper powder. This greatly reduces material cost without significant loss of conductivity, making it a core solution for HJT cell metallization cost reduction.

We provide silver content from 5% to 30% and particle sizes ranging 1–20 μm, available in flake, spherical, and dendritic morphologies. Suitable for conductive pastes, conductive inks, and EMI shielding coatings.

Silver-Coated Nickel Composite Powder

Solves the oxidation vulnerability of silvercoated copper in hightemperature, highhumidity, and saltspray environments, making it a professional solution for conductive silicone rubber and conductive coatings.

Features uniform particle size, high tap density, and excellent sphericity, delivering stable performance in electronic pastes, conductive films, and hightemperature sealing slurries.

With the rapid penetration of 5G/6G and millimeterwave technologies, UrbanMines supplies EMI shieldinggrade silvercoated nickel powder, supporting customized silver content and bimodal particle size blending. We provide integrated technical guidance from filler to formulation for customers with stringent reliability requirements (outdoor equipment, industrial computers, military electronics), enabling highquality EMC design at lower cost.