Let Baowu take you on a journey to find out.

First of all, the so-called copper cathode is actually electrolytic copper.

A thick plate of copper (containing 99% copper) is made in advance as the anode, and a thin sheet of pure copper is made as the cathode, and a mixture of sulfuric acid and copper sulfate is used as the electrolyte. After being energized, copper dissolves into copper ions (Cu) from the anode and moves to the cathode where it gains electrons and precipitates pure copper at the cathode, i.e., electrolytic copper.

Impurities that are less active than copper, such as gold and silver, are deposited at the bottom of the electrolyzer. The resulting copper sheet is called "electrolytic copper" and is of such high quality that it can be used to make electrical products.

So what is copper cathode, or electrolytic copper, used for?

Electrolytic copper has a wide range of uses.

Electrolytic copper is a non-ferrous metal that is closely related to human beings and is widely used in electrical, light industry, machinery manufacturing, construction industry, defense industry, etc. It is second only to aluminum in the consumption of non-ferrous metal materials in China.

In the manufacture of machinery and transportation vehicles, it is used in the manufacture of industrial valves and fittings, instruments, sliding bearings, molds, heat exchangers and pumps, etc.

In the chemical industry it is widely used in the manufacture of vacuums, distillation pots, brewing pots, etc.

In the defense industry, it is used to make bullets, shells, gun parts, etc. For every 1 million rounds of bullets produced, 13 - 14 tons of copper are needed.

In the construction industry, it is used to make various pipes, pipe fittings, decorative devices, etc.