PROJECT TITLE :
A Life Model for Supercapacitors
ABSTRACT:
Supercapacitors offer high-power energy storage for electrical systems. The expected useful lifetime of a supercapacitor is related to the oxidation of purposeful groups on the graphite electrode surface throughout usage, and it is highly hooked in to operational voltage and temperature. In this paper, a life model is developed for business supercapacitors. The model incorporates a replacement voltage multiplier to explain the combined effects of temperature and voltage on supercapacitor life. Accelerated testing was conducted to get the time to failure of supercapacitors over a range of voltage and temperature conditions, validate the life model, and compare the model with two previously established capacitor life models. Failure was outlined by a thirty% decrease in capacitance or a 100% increase in equivalent series resistance.
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