Supercapacitor Degradation Assesment by Power Cycling and Calendar Life Tests

• Autorzy: Sedlakova V. , Sikula J. , Majzner J. , Sedlak P. , Kuparowitz T. , Buergler B. , Vasina P.

Identyfikatory

DOI

10.1515/mms-2016-0038

• Języki publikacji: EN

Abstrakty

EN

Degradation of Supercapacitors (SC) is quantified by accelerated ageing tests. Energy cycling tests and calendar life tests are used since they address the real operating modes. The periodic characterization is used to analyse evolution of the SC parameters as a whole, and its Helmholtz and diffusion capacitances. These parameters are determined before the ageing tests and during 3 × 10⁵ cycles of both 75% and 100% energy cycling, respectively. Precise evaluation of the capacitance and Equivalent Series Resistance (ESR) is based on fitting the experimental data by an exponential function of voltage vs. time. The ESR increases linearly with the number (No) of cycles for both 75% and 100% energy cycling, whereas a super-linear increase of ESR vs. time of cycling is observed for the 100% energy cycling. A decrease of capacitance in time had been evaluated for 2000 hours of ageing of SC. A relative change of capacitance is ΔC/C₀ = 16% for the 75% energy cycling test and ΔC/C₀ = 20% for the 100% energy cycling test at temperature 25°C, while ΔC/C₀ = 6% for the calendar test at temperature 22°C for a voltage bias V = 1.0 Vop. The energy cycling causes a greater decrease of capacitance in comparison with the calendar test; such results may be a consequence of increasing the temperature due to the Joule heat created in the SC structure. The charge/discharge current value is the same for both 75% and 100% energy cycling tests, so it is the Joule heat created on both the equivalent series resistance and time-dependent diffuse resistance that should be the source of degradation of the SC structure. The diffuse resistance reaches a value of up to 30Ω within each 75% energy cycle and up to about 43Ω within each 100% energy cycle.

Słowa kluczowe

EN

supercapacitor equivalent circuit; supercapacitor parameter evaluation; supercapacitor reliability; power cycling life test; calendar life test

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2016
• Tom: Vol. 23, nr 3
• Strony: 345--358
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr., wzory

Twórcy

autor

Sedlakova V.

• Brno University of Technology, Central European Institute of Technology, Technicka 10, CZ-61600 Brno, Czech Republic

autor

Sikula J.

• Brno University of Technology, Central European Institute of Technology, Technicka 10, CZ-61600 Brno, Czech Republic

autor

Majzner J.

• Brno University of Technology, Central European Institute of Technology, Technicka 10, CZ-61600 Brno, Czech Republic

autor

Sedlak P.

• Brno University of Technology, Central European Institute of Technology, Technicka 10, CZ-61600 Brno, Czech Republic

autor

Kuparowitz T.

• Brno University of Technology, Central European Institute of Technology, Technicka 10, CZ-61600 Brno, Czech Republic

autor

Buergler B.

• European Space Agency, ESTEC, Keplerlaan 1, 2200 AG Noordwijk, The Netherlands

autor

Vasina P.

• EGGO Space s.r.o., Dvorakova 328, 563 01 Lanskroun, Czech Republic

Bibliografia

• [1] Sedlakova, V., Sikula, J., Majzner, J., Sedlak, P., Kuparowitz, T., Buergler, B., Vasina, P. (2015). Supercapacitor equivalent electrical circuit model based on charges redistribution by diffusion. J. Power Sources, 286 58-65.
• [2] Kuparowitz, T., Sedlakova, V., Szewczyk, A., Hasse, L., Smulko, J. (2014). Charge Redistribution and Restoring voltage of Supercapacitors Electroscope. 1-7.
• [3] Sedlakova, V., Sikula, J., Valsa, J., Majzner, J., Dvorak, P. (2013). Supercapacitor Charge and Self-discharge Analysis. Proc. Passive Space Component Days, ESA/ESTEC, Noordwijk, The Netherlands, (Sep. 24−26), 1−6.
• [4] Zubieta, L., Bonert, R. (2000). Characterization of double-layer capacitors for power electronics applications. IEEE Trans. Ind. Appl., 36 199-205.
• [5] Graydon. J.W., Panjehshahi, M., Kirk, D.W. (2014). Charge redistribution and ionic mobility in the micropores of supercapacitors. J. Power Sources., 245, 822-9.
• [6] Faranda, R. (2010). A new parameters identification procedure for simplified double layer capacitor twobranch model. Electr. Power Syst. Res., 80, 363-71.
• [7] Kaus, M., Kowal, J., Sauer, D.U. (2010). Modelling the effects of charge redistribution during self-discharge of supercapacitors. Electrochimica Acta, 55, 7516-23.
• [8] Sikula, J., Sedlakova, V. (2014). Technical note 10, (WP500 Super-Capacitor Electrical Characteristics Modeling, R6. Equivalent Electrical Circuit Model, ESA project No. 4000105661/12/NL/NR − Evaluation of Supercapacitors and Impact at System Level. (Mar. 14), 1-90.

Uwagi

EN

This research was performed under the ARTES 5.1 program element funded by the European Space Agency (Evaluation of Supercapacitors and Impact at System Level (4000105661/12/NL/NR CCN2). The view expressed here in can in no way be taken to reflect the official opinion of the European Space Agency. This research was also supported by the project CEITEC 2020 (LQ1601) with the financial support from the Ministry of Education, Youth and Sports of the Czech Republic under the National Sustainability Programme II.

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).