An aluminum electrolytic capacitor, usually simply called an electrolytic capacitor (e-cap), is a capacitor whose anode (+) consists of pure aluminum foil with an etched surface, covered with a uniformly very thin barrier layer of insulating aluminum oxide, which operates as a dielectric. The electrolyte, which covers the rough surface of the oxide layer, operates as the second electrode, the cathode (-).
E-caps have the largest capacitance values per unit volume compared to the two other main conventional capacitor families, ceramic and plastic film capacitors, but articulately smaller capacitance than similar sized supercapacitors.Strong moves in the aluminum electrolytic capacitors markets have greatly modified the competitive landscape.
Although sales of aluminum electrolytic capacitors brought a lot of opportunities, for the new entrants with only advantage in capital without sufficient support in technology and downstream channels, the research group did not recommend taking risk the enter this market.
The global Aluminum Electrolytic Capacitors market is valued at 5870 million US$ in 2018 is expected to reach 6150 million US$ by the end of 2025, growing at a CAGR of 0.6% during 2019-2025