What material does foam copper belong to?

Foamed copper is a new type of multifunctional material, which has many connected and disconnected pores evenly distributed in the copper matrix. Foamed copper has good electrical conductivity and ductility, and the preparation cost is lower than that of foamed nickel, and the electrical conductivity is good, and can be used for the preparation of battery negative electrode (carrier) materials, catalyst carriers and electromagnetic shielding materials. In particular, as the matrix material of battery electrodes, copper foam has some obvious advantages, but the corrosion resistance of copper is not as good as that of nickel, which limits its application in some fields.

1. Is foam copper pure copper?

The purity of high-quality foam copper produced by large manufacturers is >99%, so some people say that foam copper is pure copper material and pure metal material.

As we all know, copper, as a non-ferrous metal closely related to human beings, is widely used in electric power, light industry, machinery, construction, national defense and other industries. It is second only to aluminum in the consumption of non-ferrous metal materials in China. As a red metal, copper is also a green metal. It is called a green metal mainly because of its low melting point and easy remelting and remelting, so the recycling cost is quite low. In ancient times, it was mainly used to make utensils, handicrafts and weapons. The more famous utensils and works of art such as Houmuwu Ding and Siyang Fangzun.

2. Is copper foam a new material?

As a metal material, the purity is as high as 99% copper, why is copper foam a new material?

New materials refer to new structural materials with excellent properties and functional materials with special properties.

Structural materials mainly use their mechanical properties such as strength, toughness, hardness, and elasticity. For example, new ceramic materials, amorphous alloys (metallic glass), etc.

Functional materials mainly use their physical effects such as electricity, light, sound, magnetism, and heat. In recent years, the new materials researched and developed at home and abroad mainly include new metal materials, fine ceramics, optical fibers, etc.

Because of its special three-dimensional porous structure, foam copper is quite different from pure copper material in application.

Copper foam can be used to prepare negative electrode carrier materials for batteries, electrode substrates for lithium ion batteries or fuels, battery catalyst carriers, and electromagnetic shielding materials. Among them, copper foam has obvious advantages as the matrix material of battery electrodes.