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Proceedings ArticleDOI
01 Nov 2011
21 Citations
Also discussed are other unique capabilities of Li-ion capacitors, including long lifetime, high reliability, zero maintenance, and very low energy leakage, which allow energy storage for many years without power input.
Hence occasional catastrophic failures are typical for Ta capacitors.
In addition, all these capacitors show good heat endurance at 950 degrees C for 30 min.
These properties are highly desirable for high power and long cycle life electrochemical capacitors.
To address this, frequent replacement of capacitors are required, which may lead to increased cost.
Our results show the high specific capacitance and long-term reliability of performance of the on-chip decoupling capacitors.
Using this scheme, electrolytic capacitors can be replaced by film or ceramic capacitors leading to longer life-time and higher reliability.
In doing so, film capacitors can be adopted instead of electrolytic capacitors to achieve a long power suppliespsila lifetime.
The lifetime and reliability of PV-inverters can be increased by replacing electrolytic capacitors by film-capacitors.
Fourth, the expected life of aluminum electrolytic capacitors is extremely sensitive to operating temperature.
The prediction method proposed in this paper can be widely used to prediction the lifetime of power capacitors.
The obtained results may provide a helpful guidance for improving the reliability and performance of ferroelectric capacitors.
Open accessProceedings ArticleDOI
29 Mar 2011
This preliminary remaining life prediction algorithm serves as a demonstration of how prognostics methodologies could be used for electrolytic capacitors.
These findings have important implications in the development and improvement of dielectric polymer capacitors.
This can eventually lead to the reduction of the lifetime of the capacitors.
The obtained results may explain the degradation of real capacitors made of fine Ta powders.
The findings provide a route to increase the energy density of polymer capacitors.

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