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Mathematical Modeling of Energy-Dense NMC Electrodes: I. Determination of Input Parameters

Abstract : Physics-based models of the Li-ion battery promise to aid in deciphering and quantifying electrode limitations, thereby providing valuable insights for choosing the optimal electrode design for a specific application. However, to obtain relevant results from the models, a reliable set of input parameters is required. This work presents a combined experimental/modeling approach relying on the Newman pseudo-2D model for a complete characterization of a set of LiNi0.5Mn0.3Co0.2O2 electrodes. Intrinsic properties of the active materials are determined and validated using low loading electrodes having negligible porous-electrode limitations. Then, high-energy-density electrode properties are characterized using appropriate experimental methods, which are widely reported in the literature. In a second part of this series of papers, parameters obtained from this part serve as input parameters in Newman pseudo-2D model as well as in an extension of Newman model in order to simulate the rate capability during discharge of the aforementioned set of high-energy-density electrodes.
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https://hal.archives-ouvertes.fr/hal-03638931
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Submitted on : Friday, April 29, 2022 - 11:26:08 AM
Last modification on : Friday, August 5, 2022 - 2:44:08 PM
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Tuan Tu Nguyen, Bruno Delobel, Maxime Berthe, Benoît Fleutot, Arnaud Demortière, et al.. Mathematical Modeling of Energy-Dense NMC Electrodes: I. Determination of Input Parameters. Journal of The Electrochemical Society, Electrochemical Society, 2022, 169 (4), pp.040546. ⟨10.1149/1945-7111/ac653a⟩. ⟨hal-03638931⟩

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