Effect of state of charge on impedance spectrum of sealed cells Part I: Ni-Cd cells

Viswanathan, Vilayanur V.; Salkind, Alvin J.; Kelley, J. J.; Ockerman, J. B.

doi:10.1007/bf00648627

Cited by 25 publications

(9 citation statements)

References 10 publications

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“…where, in [36], R 0 represents the ohmic resistance, R 1 the charge transfer resistance, fC 1 ; a 1 g the double-layer capacitance, and fC 2 ; a 2 g the Warburg element (a CPE with a ¼ 0:5). This model was used to fit experimental data collected from approximately 2 mHz-250 Hz.…”

Section: Battery Modelsmentioning

confidence: 99%

“…-Modeling the impedance of lead-acid [32], nickel/metal hydride [33], and lithium-ion batteries [34,35] in finite frequency bands; -Determining the relationship between fractional-order model parameters and state-of-charge of nickel-cadmium [36], lithium-ion [37][38][39], alkaline [40], leadacid [41] batteries; -Designing high-power batteries based on the fractional contribution of the elements to total polarization [42]; -State-of-health estimations based on parameters measured during the cranking function of lead-acid batteries in vehicles [43,44].…”

Section: Battery Modelsmentioning

confidence: 99%

“…The model given in Fig. 4b was used in [36] to determine the dependence of the state-of-charge of sealed nickel-cadmium cells on model parameters and has also Real Impedance ( ) −Imaginary Impedance ( ) Fig. 3 Simulated Nyquist plot of (5) using extracted fractional parameters from [20] been used in [34] to study lithium-ion batteries.…”

Section: Battery Modelsmentioning

confidence: 99%

See 2 more Smart Citations

Fractional-order models of supercapacitors, batteries and fuel cells: a survey

Freeborn

Maundy

Elwakil

2015

Mater Renew Sustain Energy

167

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This paper surveys fractional-order electric circuit models that have been reported in the literature to best fit experimentally collected impedance data from energy storage and generation elements, including super-capacitors, batteries, and fuel cells. In all surveyed models, the employment of fractional-order capacitors, also known as constant phase elements, is imperative not only to the accuracy of the model but to reflect the physical electrochemical properties of the device.

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Section: Battery Modelsmentioning

confidence: 99%

Section: Battery Modelsmentioning

confidence: 99%

See 1 more Smart Citation

Fractional-order models of supercapacitors, batteries and fuel cells: a survey

Freeborn

Maundy

Elwakil

2015

Mater Renew Sustain Energy

167

View full text Add to dashboard Cite

show abstract

“…It shows that Ohmic resistance R 1 is in series with the parallel connection of a constant phase element Q 1 and a charge transfer resistance R 2 . The impedance of the constant phase element (Z CPE ) is given by Z CPE = 1/Y(jω) n , where ω is the angular frequency in rad s −1 , Y and n are adjustable parameters of CPE [66][67][68]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Influence of TiO 2 on the electrochemical performance of pasted type β -nickel hydroxide electrode in alkaline electrolyte

Shruthi¹,

Madhu²,

Raju³

2016

Journal of Energy Chemistry

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“…EIS measurements were carried out in the NiMH battery pack using a Solartron 1280C Frequency Response Analyser (FRA). EIS measurements were carried out at open circuit voltage (OCV) and zero DC current to ensure steady state conditions [6,39,40,41]. The NiMH battery was initially fully charged and then it was discharged at a constant current of 3.3 A until a voltage of 9.18 Volts was measured.…”

Section: Experimental Validationmentioning

confidence: 99%

An Impedance Model for EIS Analysis of Nickel Metal Hydride Batteries

Cruz-Manzo

Greenwood²,

Chen

2017

J. Electrochem. Soc.

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Based on fundamental electrochemical theory, an impedance model for analysis of electrochemical impedance spectroscopy (EIS) of Nickel-Metal Hydride (NiMH) batteries is presented in this study. The resulting analytical expression is analogous to the impedance response of the Randles electrical circuit used for EIS analysis on NiMH batteries. The impedance model is validated against EIS measurements carried out whilst decreasing the state of charge (SOC) of a NiMH battery pack. The diffusion mechanisms during the discharge of the NiMH battery is modelled through a Warburg element derived from diffusion theory considering reflective boundary conditions. ZView® Scribner Associates Inc. software allowed the estimation of electrochemical and diffusion parameters from EIS measurements of the NiMH battery. The effect of diffusion mechanisms on EIS measurements is discussed. The results demonstrate that ion transport is the rate-limiting process during the discharge of the NiMH battery. This EIS-modelling study has provided an insight into the interpretation of battery electrochemical mechanisms represented in the Nyquist plot from EIS. It can assist to further EIS-modelling to study and correlate State of Health (SOH) in NiMH batteries for different applications.

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Effect of state of charge on impedance spectrum of sealed cells Part I: Ni-Cd cells

Cited by 25 publications

References 10 publications

Fractional-order models of supercapacitors, batteries and fuel cells: a survey

Fractional-order models of supercapacitors, batteries and fuel cells: a survey

Influence of TiO 2 on the electrochemical performance of pasted type β -nickel hydroxide electrode in alkaline electrolyte

An Impedance Model for EIS Analysis of Nickel Metal Hydride Batteries

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