Impedance spectroscopy characterisation of automotive NMC/graphite Li-ion cells aged with realistic PHEV load profile

Olofsson, Ylva; Groot, Jens; Katrašnik, Tomaž; Tavčar, Gregor

doi:10.1109/ievc.2014.7056095

Cited by 22 publications

(22 citation statements)

References 4 publications

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“…This is also in accordance with previous studies that suggest that the loss of lithium and subsequent SEI-growth can be modelled as proportional to the square root of time [16]. The EIS characteristics undergo different changes for the studied cases, but a general trend is that the width of the semi-circle, often described as caused by the charge transfer impedance, is either constant or slightly decreased for most tests, possibly indicating a larger accessible electrode surface area [33].…”

Section: Discussionsupporting

confidence: 76%

On the complex ageing characteristics of high-power LiFePO4/graphite battery cells cycled with high charge and discharge currents

Groot

Świerczyński

Stan

et al. 2015

Journal of Power Sources

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123

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Section: Discussionsupporting

confidence: 76%

On the complex ageing characteristics of high-power LiFePO4/graphite battery cells cycled with high charge and discharge currents

Groot

Świerczyński

Stan

et al. 2015

Journal of Power Sources

Self Cite

123

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“…Several models derived of this technique can be found in the literature [74][75][76][77]. Impedance models can be very useful in Li-Ion cell diagnosis.…”

Section: Impedance Modelsmentioning

confidence: 99%

Analysis of the Current Electric Battery Models for Electric Vehicle Simulation

et al. 2019

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Electric vehicles (EVs) are a promising technology to reduce emissions, but its development enormously depends on the technology used in batteries. Nowadays, batteries based on lithium-ion (Li-Ion) seems to be the most suitable for traction, especially nickel-manganese-cobalt (NMC) and nickel-cobalt-aluminum (NCA). An appropriate model of these batteries is fundamental for the simulation of several processes inside an EV, such as the state of charge (SoC) estimation, capacity and power fade analysis, lifetime calculus, or for developing control and optimization strategies. There are different models in the current literature, among which the electric equivalent circuits stand out, being the most appropriate model when performing real-time simulations. However, impedance models for battery diagnosis are considered very attractive. In this context, this paper compares and contrasts the different electrical equivalent circuit models, impedance models, and runtime models for battery-based EV applications, addressing their characteristics, advantages, disadvantages, and usual applications in the field of electromobility. In this sense, this paper serves as a reference for the scientific community focused on the development of control and optimization strategies in the field of electric vehicles, since it facilitates the choice of the model that best suits the needs required.

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“…The Constant Phase Element (CPE) is a particular equivalent circuit passive element, which improves the match between the fit and the experimental battery EIS measurement in broadband. Usually it is used to describe the electrical properties of double layer capacitors [13] between the battery electrode and the electrolyte [14]. Its transfer function in frequency domain is defined as follows:…”

Section: A Analysis In Frequency-domainmentioning

confidence: 99%

“…Last consideration is the following: usually in the battery the slope of the straight line at the LF is equal to α=0.5. This particular CPE is the so-called Warburg impedance and this is usually used to describe the diffusion of lithium ions in the porous active material of the electrodes [14].…”

Section: A Analysis In Frequency-domainmentioning

confidence: 99%

See 1 more Smart Citation

Modeling and simulation of Constant Phase Element for battery Electrochemical Impedance Spectroscopy

Locorotondc

Pugi

Berzi

et al. 2019

2019 IEEE 5th International Forum on Research and Technology for Society and Industry (RTSI)

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This paper presents a set of time-domain electrical equivalent circuit models for battery voltage prediction under arbitrary current profiles. The circuit model is composed by passive electrical components like resistance, inductance and capacitance. The constant phase elements are introduced in the model, which are usually used in electrochemical impedance spectroscopy analysis to describe the electrical property of double layer capacitors between electrode and electrolyte. The aim of the paper is the modeling in the time-domain of the constant phase elements. Two models are proposed. Model's accuracy and run speed are evaluated by comparing experimental results obtained by an appropriate testbed and simulation results obtained by the implementation and the execution of the model using Matlab software.

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Impedance spectroscopy characterisation of automotive NMC/graphite Li-ion cells aged with realistic PHEV load profile

Cited by 22 publications

References 4 publications

On the complex ageing characteristics of high-power LiFePO4/graphite battery cells cycled with high charge and discharge currents

On the complex ageing characteristics of high-power LiFePO4/graphite battery cells cycled with high charge and discharge currents

Analysis of the Current Electric Battery Models for Electric Vehicle Simulation

Modeling and simulation of Constant Phase Element for battery Electrochemical Impedance Spectroscopy

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