An Electrical Circuit for Modeling the Dynamic Response of Li-Ion Polymer Batteries

Moss, Pedro L.; Au, G.; Plichta, Edward J.; Zheng, Jieyun

doi:10.1149/1.2999375

Cited by 98 publications

(80 citation statements)

References 36 publications

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“…The circuit-based models are simple and practical because they allow for the complex electrochemical process to be replaced by a simple electrical circuit. The correlation with battery dy-86 F. Saidani et al: Lithium-ion battery models: a comparative study and a model-based powerline communication namics is therefore preserved, without compromising much of the accuracy (Moss et al, 2008).…”

Section: Abstract Modelsmentioning

confidence: 99%

“…3.3.2) but increases simultaneously its complexity (Huria et al, 2012;Moss et al, 2008). Hu et al (2012) present a comparative overview of circuit models, with no or up to 3 RC-elements with consideration of self-correction and hysteresis effect (the discrepancy between the charging and discharging process).…”

Section: Simple Circuits As Li-ion Battery Modelsmentioning

confidence: 99%

“…6) is associated with the diffusion behavior as introduced in Sect. 3.1 and is represented by the Solid-State Warburg Impedance (Moss et al, 2008;Keil and Jossen, 2012). The second arc at slightly higher frequencies (arc (ii) in Fig.…”

Section: Models Based On the Impedance Spectrummentioning

confidence: 99%

“…Fig. 6) represents the interlayer effects at the solid electrolyte interface (Keil and Jossen, 2012;Moss et al, 2008). The intersection with the horizontal axis (Z = 0, point (iv) in Fig.…”

Section: Models Based On the Impedance Spectrummentioning

confidence: 99%

“…The equivalent circuit modeling of the impedance response is introduced by Moss et al (2008) as in Fig. 7, wherein C dl is the electrochemical double layer capacitance, R CT is the faradaic charge transfer resistance, C int is the intercalation capacitance corresponding to the accumulation of the Lithium ions within the electrode matrix, and Z(ω) is the Warburg solid-state impedance.…”

Section: Models Based On the Impedance Spectrummentioning

confidence: 99%

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Lithium-ion battery models: a comparative study and a model-based powerline communication

et al. 2017

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Abstract. In this work, various Lithium-ion (Li-ion) battery models are evaluated according to their accuracy, complexity and physical interpretability. An initial classification into physical, empirical and abstract models is introduced. Also known as "white", "black" and "grey" boxes, respectively, the nature and characteristics of these model types are compared. Since the Li-ion battery cell is a thermo-electrochemical system, the models are either in the thermal or in the electrochemical state-space. Physical models attempt to capture key features of the physical process inside the cell. Empirical models describe the system with empirical parameters offering poor analytical, whereas abstract models provide an alternative representation.In addition, a model selection guideline is proposed based on applications and design requirements. A complex model with a detailed analytical insight is of use for battery designers but impractical for real-time applications and in situ diagnosis. In automotive applications, an abstract model reproducing the battery behavior in an equivalent but more practical form, mainly as an equivalent circuit diagram, is recommended for the purpose of battery management. As a general rule, a trade-off should be reached between the high fidelity and the computational feasibility. Especially if the model is embedded in a real-time monitoring unit such as a microprocessor or a FPGA, the calculation time and memory requirements rise dramatically with a higher number of parameters.Moreover, examples of equivalent circuit models of Lithium-ion batteries are covered. Equivalent circuit topologies are introduced and compared according to the previously introduced criteria. An experimental sequence to model a 20 Ah cell is presented and the results are used for the purposes of powerline communication.

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Section: Abstract Modelsmentioning

confidence: 99%

Section: Simple Circuits As Li-ion Battery Modelsmentioning

confidence: 99%

Section: Models Based On the Impedance Spectrummentioning

confidence: 99%

“…Fig. 6) represents the interlayer effects at the solid electrolyte interface (Keil and Jossen, 2012;Moss et al, 2008). The intersection with the horizontal axis (Z = 0, point (iv) in Fig.…”

Section: Models Based On the Impedance Spectrummentioning

confidence: 99%

Section: Models Based On the Impedance Spectrummentioning

confidence: 99%

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Lithium-ion battery models: a comparative study and a model-based powerline communication

et al. 2017

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Simultaneous model selection and parameter estimation for lithium‐ion batteries: A sequential MINLP solution approach

Shen

2015

AIChE Journal

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Equivalent circuit model (ECM) is a practical and commonly used tool not only in state of charge (SOC) estimation but also in state of health (SOH) monitoring for lithium-ion batteries (LIBs). The functional forms of circuit parameters with respect to SOC in ECM are usually empirical determined, which cannot guarantee to obtain a compact and simple model. A systematical solution framework for simultaneous functional form selection and parameter estimation is proposed. A bi-objective mixed-integer nonlinear programming (MINLP) model is first constructed. Two solution approaches, namely the explicit and implicit methods, are then developed to balance model accuracy and model complexity. The former explicitly treats the model complexity as a constraint and the latter implicitly embeds the model complexity into the objective as a penalty. Both approaches require sequential solution of the transformed MINLP model and an ideal and nadir ideal solutions-based criterion is utilized to terminate the solution procedure for determining the optimal functional forms, in which ideal solution and nadir ideal solution represent the best and worst of each objective, respectively. Both explicit and implicit approaches are thoroughly evaluated and compared through experimental pulse current discharge test and hybrid pulse power characterization test of a commercial LIB. The fitting and prediction results illustrate that the proposed methods can effectively construct an optimal ECM with minimum complexity and prescribed precision requirement. It is thus indicated that the proposed MINLP-based solution framework, which could automatically guide the optimal ECM construction procedure, can be greatly helpful to both SOC estimation and SOH monitoring for LIBs.

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Double layer capacitance for different thicknesses of carbon overlay and types of electrolytes: a circuit analogue approach

Singh

Supriya

Rakib

et al. 2016

Asia-Pacific J Chem Eng

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Electrochemical double layer capacitor (EDLC) complements batteries in addressing the intermittency problems in non-renewable energy sources. Here, the charge is stored in double layer in porous materials that offer high internal surface area. At the time of charging or discharging the capacitor, the transport of ions through the pore network involves resistance that influences the effectiveness of storage. This article presents the impedance spectroscopy data to analyse the resistance inside the pore. The equivalent circuits were fitted here to explain the complex impedance curve. The resistive and capacitive elements and their arrangement were studied for different thicknesses of the activated carbon overlay. The effect of binder on the internal surface area of activated carbon powder was evaluated through BET analysis and scanning electron microscopy. The results were compared for two electrolytes. Aqueous solution of potassium chloride as an aqueous electrolyte, and tetra ethyl ammonium tetra fluoroborate in acetonitrile as an organic electrolyte were used in this study.

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An Electrical Circuit for Modeling the Dynamic Response of Li-Ion Polymer Batteries

Cited by 98 publications

References 36 publications

Lithium-ion battery models: a comparative study and a model-based powerline communication

Lithium-ion battery models: a comparative study and a model-based powerline communication

Simultaneous model selection and parameter estimation for lithium‐ion batteries: A sequential MINLP solution approach

Double layer capacitance for different thicknesses of carbon overlay and types of electrolytes: a circuit analogue approach

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