| 摘要 |
A wet electrolytic capacitor that includes a plurality of anodes which have a thickness of 1500 micrometers or less formed from a powder such as tantalum or niobium, a cathode and working electrolyte that is disposed in electrical contact with the anodes and current collector. Any number of anodes may generally be employed, such as from 2 to 40, in some embodiments from 3 to 30, and in some embodiments, from 4 to 20. The anodes are thin and typically have a thickness of 1000 micrometers or less or between 50 to 500 micrometers. By employing a plurality of anodes that are relatively thin in nature, the resulting wet electrolytic capacitor is able to achieve excellent electrical properties. For example, the equivalent series resistance ("ESR") - the extent that the capacitor acts like a resistor when charging and discharging in an electronic circuit - may be less than about 1500 milliohms, in some embodiments less than about 1000 milliohms, and in some embodiments, less than about 500 milliohms, measured with a 2-volt bias and 1-volt signal at a frequency of 1000 Hz. |
