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Nickel foam is a sound-absorbing material with excellent performance, which has a high sound-absorption coefficient at high frequencies; its sound-absorbing performance at low frequencies can be improved through the design of the sound-absorbing structure. Nickel foam is also one of the best electrode materials for making cadmium-nickel batteries and hydrogen-nickel batteries. Nickel foam is a sound-absorbing material with excellent performance, which has a high sound absorption coefficient at high frequencies; the sound absorption performance at low frequencies can be improved through the design of the sound-absorbing structure.
Features
1. Mass and light: maximum surface area, specific gravity 0.2-0.3,
1/4, wood 1/3. Aluminum and iron 1/30, 1/10 the mass of water and
light.
2. Sound absorption: The porous structure has a wide frequency
sound absorption characteristic.
3. Electronic wave shield: shielded by a relatively thin electronic
wave with a thickness of about 90 db.
4. Processability: It can be lowered, bent, and easily adhered.
5. High temperature refractory: The stable form is difficult to
burn, high temperature.
6. Recycling: Metal waste can be recycled 100%.
7. Thermal conductivity: The thermal conductivity of porous
materials is strong.
8. Breathable: Uniform three-dimensional network structure, the
function of a filter, super stable gas and fluid flow and
performance.
9. Insulation: With additional processing, high noise shielding can
be obtained, and the sound insulation effect is good.
10. Exquisite appearance, interior and practice: Suitable for
interior decoration through various treatments.
11. The temperature is 1100 degrees, resistant to various acid
corrosion, good permeability, fast and uniform pore structure, and
heating heat.
Production Process
The process of preparing foamed nickel by electrodeposition
technology has been successfully developed through experiments. The
substrate material used is porous open-cell foam plastic, and the
conductive layer can be prepared by three methods: electroless
nickel plating, vacuum nickel plating, and dipping conductive glue
(palladium sol, submicron graphite emulsion, etc.), and can be
pre-plated. Thick nickel is electroplated in the general sulfate
nickel plating electrolyte, and then the three-dimensional network
foam nickel material with excellent performance can be obtained
after burning, reducing and annealing processes.
Application
1. Battery electrode materials
Nickel foam is mainly used for battery electrode materials,
especially for NiMH batteries, which are widely used in laptop
computers, mobile phones, electric scooters, electric bicycles, and
hybrid vehicles.
2. Fuel cells
The usual operating temperature of molten carbonate fuel cells is
between 550-700°C, and nickel foam can be used as an
electrocatalyst for molten carbonate fuel cells.
3. Catalyst material
The unique opening structure, low-pressure input hole, inherent
tensile strength and thermal shock resistance make nickel foam a
catalyst carrier for automotive catalytic converters, catalytic
combustion, and black smoke purifiers for diesel vehicles.
4. Other
Nickel foam can be used as a filter material, a magnetic current
conductor for magnetic particles in fluids. Other applications
include applications in hydrogen storage media, heat exchange
media.