Detailed analysis of the self-discharge of supercapacitors
2009; Elsevier BV; Volume: 196; Issue: 1 Linguagem: Inglês
10.1016/j.jpowsour.2009.12.028
ISSN1873-2755
AutoresJulia Kowal, Esin Avaroglu, Fahmi Chamekh, Armands Šenfelds, Tjark Thien, Dhanny Wijaya, Dirk Uwe Sauer,
Tópico(s)Advanced Battery Technologies Research
ResumoSelf-discharge is an important performance factor when using supercapacitors. Voltage losses in the range of 5–60% occur over two weeks. Experiments show a dependency of the self-discharge rate on various parameters such as temperature, charge duration and short-term history. In this paper, self-discharge of three commercially available supercapacitors was measured under various conditions. Based on different measurements, the impact of the influence factors is identified. A simple model to explain parts of the voltage decay is presented.
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