Thermal-Electrochemical Modeling of Battery Systems

Gu, Wenbin; Wang, C. Y.

doi:10.1149/1.1393625

Cited by 634 publications

(353 citation statements)

References 44 publications

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“…The complete set of equations can either be used to simulate the transport within cells using a spatial representation of the electrodes, which resolves the microstructure of the porous electrodes or as a starting point to obtain a porous media representation of the electrodes as in [15]. In the microscopic approach active particles and electrolyte are treated as separate media.…”

Section: Discussionmentioning

confidence: 99%

“…Most modeling approaches for the thermal behavior of batteries are concentrating on overall thermal balance equations for a whole cell [9,10,11] [12, 13,14] by combining phenomenologically thermodynamic considerations on entropy or enthalpy changes within a cell with reasonable assumptions on out of equilibrium processes like Joule heating, heat of mixing, Peltier effect and Soret effect. An approach based on local continuity equations for the temperature was presented in [15], extending previous work on species and charge transport in batteries [16]. These authors focused on deriving macroscopic equations for the heat transport in porous electrodes using the volume averaging technique.…”

Section: Introductionmentioning

confidence: 97%

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Thermodynamic consistent transport theory of Li-ion batteries

Latz

Zausch

2011

Journal of Power Sources

188

220

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Most Li ion insertion batteries consist of a porous cathode, a separator filled with electrolyte and an anode, which very often also has some porous structure. The solid part especially in the cathode is usually produced by mixing a powder of the actual active particles, in which Li ions will be intercalated, binder and carbon black to enhance the electronic conductivity of the electrode. As a result the porous structure of the electrodes is very complex, leading to complex potential, ion and temperature distributions within the electrodes. The intercalation and deintercalation of ions cannot be expected to be homogeneously distributed over the electrode due to the different transport properties of electrolyte and active particles in the electrode and the complex three-dimensional pore structure of the electrode. The influence of the final microstructure on the distribution of temperature, electric potential and ions within the electrodes is not known in detail, but may influence strongly the onset of degradation mechanisms. For being able to numerically simulate the transport phenomena, the equations and interface conditions for ion, charge and heat transport within the complex structure of the electrodes and through the electrolyte filled separator are needed. We will present a rigorous derivation of these equations based exclusively on general principles of nonequilibrium thermodynamics. The theory is thermodynamically consistent i.e. it guarantees strictly positive entropy production. The irreversible and reversible sources of heat are derived within the theory. Especially the various contribution to the Peltier heat due to the intercalation of ions are obtained as a result of the theory

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Thermodynamic consistent transport theory of Li-ion batteries

Latz

Zausch

2011

Journal of Power Sources

188

220

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“…Doyle et al [18] developed a one-dimensional model for a LIB derived from a porous electrode and concentrated solution theory. Others [19][20][21][22] used or modified the model of Doyle et al [18]. Kwon et al [23] presented a different approach from the rigorous porous electrode model [6][7][8][9][10] to predict the discharge behavior of a LIB cell.…”

Section: Introductionmentioning

confidence: 99%

Modeling the Effects of the Cathode Composition of a Lithium Iron Phosphate Battery on the Discharge Behavior

Lee

Shin

et al. 2013

Energies

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This paper reports a modeling methodology to predict the effects on the discharge behavior of the cathode composition of a lithium iron phosphate (LFP) battery cell comprising a LFP cathode, a lithium metal anode, and an organic electrolyte. A one-dimensional model based on a finite element method is presented to calculate the cell voltage change of a LFP battery cell during galvanostatic discharge. To test the validity of the modeling approach, the modeling results for the variations of the cell voltage of the LFP battery as a function of time are compared with the experimental measurements during galvanostatic discharge at various discharge rates of 0.1C, 0.5C, 1.0C, and 2.0C for three different compositions of the LFP cathode. The discharge curves obtained from the model are in good agreement with the experimental measurements. On the basis of the validated modeling approach, the effects of the cathode composition on the discharge behavior of a LFP battery cell are estimated. The modeling results exhibit highly nonlinear dependencies of the discharge behavior of a LFP battery cell on the discharge C-rate and cathode composition.

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“…Each cell was characterised in terms of capacity and physical parameters such as electrode and separator nature, thicknesses and electrolyte concentration to provide related parameters for the simulation and try to duplicate exactly the runs with the model. However, other microscopic geometrical parameters were selected according to the literature [13,22]. Under this hypothesis, nickel oxide electrode consists of composite cylindrical needles with a substrate inside.…”

Section: Methodsmentioning

confidence: 99%

Advances in Electrochemical Models for Predicting the Cycling Performance of Traction Batteries: Experimental Study on Ni-MH and Simulation

Bernard

Sciarretta

Touzani

et al. 2009

Oil & Gas Science and Technology

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Résumé -Développement de modèles électrochimiques de batteries de traction pour la prédiction de performances : étude expérimentale de batteries NiMH et simulations -Des modèles électrochimiques fins permettant de simuler le comportement de batteries ont été développés avec succès et reportés dans la littérature. Ils constituent une alternative aux méthodes classiques pour estimer l'état de charge (SoC pour State of Charge) des batteries, cette variable étant ici un paramètre interne du modèle physique. Cependant, pour les applications embarquées, il est nécessaire de développer des modèles simplifiés sur la base de ces modèles physiques afin de diminuer le temps de calcul nécessaire à la résolution des équations. Ici, nous présenterons à titre d'exemple un modèle électrochimique 0D avancé d'un accumulateur NiMH et sa validation. Ce modèle à paramètres concentrés sera utilisé pour réaliser un filtre de Kalman qui permettra la prédiction de l'état de charge d'un pack complet. Une étude expérimentale d'accumulateurs NiMH permettra de mieux comprendre les mécanismes physico-chimiques ayant lieu à chaque électrode et ainsi d'alimenter le modèle physique en informations. La dernière partie de cet article sera consacrée à la validation du modèle par comparaison à des données expérimentales obtenues sur cellule individuelle mais également sur un pack batterie NiMH commercial complet. Abstract -Advances in Electrochemical Models for Predicting the Cycling Performance of Traction Batteries: Experimental Study on Ni-MH and Simulation

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Thermal-Electrochemical Modeling of Battery Systems

Cited by 634 publications

References 44 publications

Thermodynamic consistent transport theory of Li-ion batteries

Thermodynamic consistent transport theory of Li-ion batteries

Modeling the Effects of the Cathode Composition of a Lithium Iron Phosphate Battery on the Discharge Behavior

Advances in Electrochemical Models for Predicting the Cycling Performance of Traction Batteries: Experimental Study on Ni-MH and Simulation

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