Application and development of aluminum electrolytic capacitors

At present, the global aluminum electrolytic capacitor supply market is becoming more and more mature, mainly in Japan, China, Taiwan, and South Korea. Judging from the overall competition pattern of the industry in recent years, the production of electrolytic capacitors in Japan has gradually shrunk, replaced by Korean companies, Taiwanese companies, and mainland Chinese companies. Aluminum electrolytic capacitors were considered high-tech products in mainland China before 1978. After more than 30 years of development, aluminum electrolytic capacitors are no longer high-tech products for domestic aluminum electrolytic capacitor manufacturers. Product. From a technical point of view, capacitors produced by some well-known domestic brands can completely replace foreign capacitors.
        According to the "2013-2017 China Aluminum Electrolytic Capacitor Industry Development Prospects and Investment Forecast Analysis Report" data show that the global output value in 2010 was 5.2 billion U.S. dollars, and the average growth rate in the past 7 years was 4%-5%. It is expected to reach The market size of 5.5 billion U.S. dollars will reach about 6 billion U.S. dollars by 2015. From the perspective of global aluminum electrolytic capacitor delivery time, there has been a significant extension since 2010, which to a large extent implies that the industry is entering a rapid growth channel.
        Affected by upward pressure on costs and the shift of downstream demand to China, in recent years, well-known overseas aluminum electrolytic capacitor manufacturers have come to China to invest and build factories. While aluminum electrolytic capacitors are growing steadily in the field of traditional consumer electronics, their application areas have been expanded in many emerging fields such as energy-saving lamps, inverters, and new energy along with structural transformation and technological progress. The national "Twelfth Five-Year Plan" clearly stated: to promote the integrated construction and network development of infrastructure such as transportation, communications, power supply, water supply and drainage in large, medium and small cities. The development of these emerging fields will expand the demand space for new material products, and China's aluminum electrolytic capacitor industry, which is a national key development industry, will also gain huge development space.
        The basic functions of aluminum electrolytic capacitors in electronic circuits are generally summarized as: pass AC and block DC, have the functions of filtering, bypass, coupling and fast charging and discharging, and have the characteristics of small size, large stored power, and high cost performance. With the advancement of modern technology and the continuous improvement of capacitor performance, aluminum electrolytic capacitors have been widely used in consumer electronics, communication products, computers and peripheral products, new energy, automation control, automotive industry, optoelectronic products, high-speed railways and aviation and military Equipment etc.
Aluminum electrolytic capacitors can be divided into liquid aluminum electrolytic capacitors and solid aluminum electrolytic capacitors according to different electrolyte forms; according to the different extraction methods, they can be divided into five types: lead type, solder pin type, solder chip type, bolt type, and patch type. According to different application areas, aluminum electrolytic capacitors are divided into consumer, industrial and special application aluminum electrolytic capacitors. Consumer aluminum electrolytic capacitors are mainly used in consumer markets such as energy-saving lighting, televisions, monitors, computers and air conditioners; industrial aluminum electrolytic capacitors Capacitors are mainly used in industrial and communication power supplies, professional frequency converters, numerical control and servo systems, wind power generation and automobiles, and other industrial fields; special aluminum electrolytic capacitors are mainly used in military, aerospace and other special fields.