Foam nickel catalyst carrier battery extremely porous foam metal filter material

Foam Nickel: A Multifunctional Porous Metallic Material for Catalysts, Batteries, and Filtration

Structural & Functional Overview

Nickel foam, an innovative porous metallic material, is engineered through advanced processing into a three-dimensional fully interconnected mesh structure. Key properties include:

Ultralight Density: 0.2–0.3 g/cm³ (1/4 water, 1/3 wood, 1/10 aluminum, 1/30 iron)

High Porosity: 96–98% void volume with broadband acoustic absorption (NRC 0.8–1.0)

Thermal Conductivity: 90–120 W/m·K

Mechanical Flexibility: Machinable via cutting, bending, and adhesive bonding

The metallurgically bonded hollow skeleton retains nickel's intrinsic properties (corrosion resistance, electrical conductivity) while offering a specific surface area of 2,500–5,000 m²/m³. This unique architecture enables exceptional gas/fluid flow stability and filtration efficiency.

Core Applications

1. Electrochemical Power Systems

Battery Electrodes:

Doubles energy density in NiMH/NiCd batteries

Carbon-nickel foam composites for Li-ion anodes (2,500 mAh/g capacity)

Fuel Cells: Catalyst substrates for PEMFCs and SOFCs

End Products: EVs (e-scooters, hybrids), consumer electronics, power tools

2. Chemical Engineering

Catalysis: High-surface-area carriers for reactions (TOF↑30%)

Separation & Filtration:

Oil/water separators (>99% efficiency)

Automotive exhaust scrubbers (NOx conversion >90%)

Air purifiers (PM2.5 filtration)

3. Electrochemical Processes

Water Electrolysis: Electrodes achieving 85% efficiency at 2 A/cm²

Electrometallurgy: Anodes for metal refining (Cu, Zn)

4. Thermal Management

Heat Pipes: Phase-change composite wicks (heat flux >200 W/cm²)

Thermal Interfaces: Bonding layers for high-power electronics

5. Functional Materials

Acoustic Engineering: Broadband sound absorption (500–4,000 Hz)

EMI Shielding: 60–80 dB attenuation (1 MHz–10 GHz)

Advanced Uses:

Vibration damping in aerospace

Radar-absorbent stealth coatings

Flame-retardant insulation (UL94 V-0)

Technical Highlights