Electrode foil: the industry concentration is high, and the leading advantage is outstanding

Electrode foil: the industry concentration is high, and the leading advantage is outstanding

Electrode foil is divided into corrosion foil and forming foil, both upstream products are made of high-purity aluminum through a series of calendering, cleaning and cutting processes processed electronic aluminum foil, electronic aluminum foil by surface corrosion treatment to form corrosion foil, corrosion foil after reoxidation treatment to form foil. 1 ton of electronic aluminum foil can produce about 3400 square meters of formed foil. From the perspective of the new aluminum electronic material industry chain, the industry concentration of high-purity aluminum, electronic aluminum foil and electrode foil basically shows a phenomenon of decreasing in turn. High-purity aluminum and electronic aluminum foil need large-scale production to have production benefits, and technical barriers and capital barriers are high, and the industry concentration is high.

There are many manufacturers in the global foil industry, except for more than a dozen large-scale enterprises, the rest are small and medium-sized enterprises, and the market competition is fierce, among which the Japanese JCC company is relatively leading in technology. According to the journal "Nonferrous Metal Processing" article "Development Status and Market Forecast of Electrode Foil for Aluminum Electrolytic Capacitors", the output of electrode foil in China has shown a year-by-year growth trend in recent years, of which the growth rate was faster in 2017. Due to the strengthening of environmental protection and rectification, 30% of unqualified electrode foil enterprises in sewage treatment were shut down, and China's electrode foil production declined in 2018, with electrode foil production of about 55,000 tons and about 59,000 tons in 2019. With the breakthrough of electrode foil technical barriers, it is expected that China's electronic aluminum foil production will reach more than 70,000 tons in 2025.

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