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Open AccessArticle

Methods of Assessing Degradation of Supercapacitors by Using Various Measurement Techniques

1
Departments of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, ul. G. Narutowicza 11/12, 80-288 Gdansk, Poland
2
Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznan, Poland
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(11), 2311; https://doi.org/10.3390/app9112311
Received: 6 May 2019 / Revised: 27 May 2019 / Accepted: 30 May 2019 / Published: 5 June 2019
This article presents the qualitative analyses of the construction of supercapacitor samples. The analyses are based on the suggested thermographic measurements as well as the technique of testing the inherent noise of the investigated element. The indicated assessment methods have been referred to the currently used parameters for the qualitative evaluation of supercapacitors. The approach described in this paper, which introduces additional parameters assessing worn out of supercapacitors, can be included in the so-called non-invasive measurement methods, which allow the assessment of the condition of the sample under test. This article presents the applied measurement stands and verifies of the applicability of measurement methods in relation to the currently used parameters allowing for the qualitative assessment of supercapacitors. The measurement method presented in this article was used to study prototypes of supercapacitors. The measurement results allow for more accurate characterization of the observed element. Conducted tests revealed, at the same time, that one of the proposed evaluation methods, based on measurements of inherent noise of tested supercapacitors, is a method predicting their degradation. View Full-Text
Keywords: supercapacitor; thermovision; noise; quality supercapacitor; thermovision; noise; quality
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MDPI and ACS Style

Galla, S.; Szewczyk, A.; Smulko, J.; Przygocki, P. Methods of Assessing Degradation of Supercapacitors by Using Various Measurement Techniques. Appl. Sci. 2019, 9, 2311.

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