Electrical double-layer capacitors: Evaluation of ageing phenomena during cycle life testing

N. Omar; H. Gualous; Justin Salminen; G. Mulder; A. Samba; Y. Firouz; M.A. Monem; P. Van den Bossche; J. Van Mierlo

doi:10.1007/s10800-013-0640-4

Electrical double-layer capacitors: Evaluation of ageing phenomena during cycle life testing

N. Omar (Corresponding Author), H. Gualous, Justin Salminen, G. Mulder, A. Samba, Y. Firouz, M.A. Monem, P. Van den Bossche, J. Van Mierlo

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

29 Citations (Scopus)

Abstract

This paper represents an assessment of the main ageing phenomena in electrical double-layer capacitors (EDLCs). In this study the cycle life of the EDLC cells with a rated capacitance of 1,600 F has been investigated at different ambient temperatures and current rates. From the experimental results we can observe that the impact of the high ambient temperature is significant on the cycle life of the cells. Moreover, the results also show the negative impact of the current rate. The internal resistance tests showed that the increase of the resistance is much higher than the decrease of the capacitance. Thus, the ageing of the EDLC during cycling was clearly non-linear. Further the EIS measurements indicated the higher increase of the imaginary part of the impedance at low frequencies during cycling, which indicates the capacitance fade.

Original language	English
Pages (from-to)	509-522
Number of pages	13
Journal	Journal of Applied Electrochemistry
Volume	44
Issue number	4
DOIs	https://doi.org/10.1007/s10800-013-0640-4
Publication status	Published - 2014
MoE publication type	A1 Journal article-refereed

Keywords

ageing
capacitance fade
EIS
electrical double-layer capacitors
internal resistance increase
lifetime model

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10.1007/s10800-013-0640-4

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title = "Electrical double-layer capacitors: Evaluation of ageing phenomena during cycle life testing",

abstract = "This paper represents an assessment of the main ageing phenomena in electrical double-layer capacitors (EDLCs). In this study the cycle life of the EDLC cells with a rated capacitance of 1,600 F has been investigated at different ambient temperatures and current rates. From the experimental results we can observe that the impact of the high ambient temperature is significant on the cycle life of the cells. Moreover, the results also show the negative impact of the current rate. The internal resistance tests showed that the increase of the resistance is much higher than the decrease of the capacitance. Thus, the ageing of the EDLC during cycling was clearly non-linear. Further the EIS measurements indicated the higher increase of the imaginary part of the impedance at low frequencies during cycling, which indicates the capacitance fade.",

keywords = "ageing, capacitance fade, EIS, electrical double-layer capacitors, internal resistance increase, lifetime model",

author = "N. Omar and H. Gualous and Justin Salminen and G. Mulder and A. Samba and Y. Firouz and M.A. Monem and {Van den Bossche}, P. and {Van Mierlo}, J.",

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T1 - Electrical double-layer capacitors

T2 - Evaluation of ageing phenomena during cycle life testing

AU - Omar, N.

AU - Gualous, H.

AU - Salminen, Justin

AU - Mulder, G.

AU - Samba, A.

AU - Firouz, Y.

AU - Monem, M.A.

AU - Van den Bossche, P.

AU - Van Mierlo, J.

PY - 2014

Y1 - 2014

N2 - This paper represents an assessment of the main ageing phenomena in electrical double-layer capacitors (EDLCs). In this study the cycle life of the EDLC cells with a rated capacitance of 1,600 F has been investigated at different ambient temperatures and current rates. From the experimental results we can observe that the impact of the high ambient temperature is significant on the cycle life of the cells. Moreover, the results also show the negative impact of the current rate. The internal resistance tests showed that the increase of the resistance is much higher than the decrease of the capacitance. Thus, the ageing of the EDLC during cycling was clearly non-linear. Further the EIS measurements indicated the higher increase of the imaginary part of the impedance at low frequencies during cycling, which indicates the capacitance fade.

AB - This paper represents an assessment of the main ageing phenomena in electrical double-layer capacitors (EDLCs). In this study the cycle life of the EDLC cells with a rated capacitance of 1,600 F has been investigated at different ambient temperatures and current rates. From the experimental results we can observe that the impact of the high ambient temperature is significant on the cycle life of the cells. Moreover, the results also show the negative impact of the current rate. The internal resistance tests showed that the increase of the resistance is much higher than the decrease of the capacitance. Thus, the ageing of the EDLC during cycling was clearly non-linear. Further the EIS measurements indicated the higher increase of the imaginary part of the impedance at low frequencies during cycling, which indicates the capacitance fade.

KW - ageing

KW - capacitance fade

KW - EIS

KW - electrical double-layer capacitors

KW - internal resistance increase

KW - lifetime model

U2 - 10.1007/s10800-013-0640-4

DO - 10.1007/s10800-013-0640-4

M3 - Article

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VL - 44

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EP - 522

JO - Journal of Applied Electrochemistry

JF - Journal of Applied Electrochemistry

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ER -

Electrical double-layer capacitors: Evaluation of ageing phenomena during cycle life testing

Abstract

Keywords

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