Foamed copper is a new type of multifunctional material with a large number of connected and non-connected pores evenly distributed on the copper base. Foamed copper has good electrical conductivity and ductility. Compared with foamed nickel, it has low cost and good electrical conductivity, and can be used to prepare battery negative electrode (carrier) materials, catalyst carriers and electromagnetic shielding materials. In particular, the use of foamed copper as the base material of battery electrodes has obvious advantages, but the corrosion resistance of copper is not as good as that of nickel, which limits its application in some fields.

The main uses of foamed copper are:
1. Monopolar materials.
Because of its good electrical conductivity, copper foam can be widely used in nickel-zinc batteries, electric double layer capacitors and other electrode materials, and copper foam can be widely used as the electrode current collector of electric double layer capacitors. Electrolytic recovery of copper-containing wastewater electrode materials has broad application prospects.
2.  catalysis.
At present, in many organic chemical reactions, there are attempts to directly use foamed copper with large specific surface area instead of punched copper plate as a catalyst for chemical reactions, and foamed copper as a carrier for photocatalytic air purification, the effect is also relatively good.
3. Thermal conduction and heat dissipation materials.
Due to its good thermal conductivity, blister copper has become an excellent flame-retardant and flame-retardant material, and has been widely used in many advanced fire-fighting equipment abroad, especially as a flame heat insulation device, which has better effect; in addition, people It also uses the excellent thermal conductivity and surface permeability of foam copper to make heat-dissipating motors and electrical appliances.
4. silencer shielding equipment.
The sound wave is diffusely reflected on the surface of the copper plate, and the noise reduction effect is achieved through the principles of expansion noise reduction and microporous noise reduction. The shielding performance of copper is close to that of the silver screen, and it is an electromagnetic shielding material with excellent performance.
5. Filter material.
The structural characteristics of the foamed copper product and its harmlessness to the human body have been successfully used as a medical filter material; at the same time, it also has a good application prospect in water treatment equipment.
6. Substances that reduce fluid pressure.
The dispersion and buffering effect of foamed copper on the fluid makes it a decompression protection device for various pressure gauges, and the effect is good.