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Modeling the Electrical Conductive Paths within All-Solid-State Battery Electrodes
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DOI：10.1002/ceat.201900501.png)
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Abstract
En 中文
All-solid-state batteries constitute a very promising energy storage device. Two very important properties of these battery cells are the ionic and the electrical conductivity, which describe the ion and the electron transport through the electrodes, respectively. In this work, a numerical method is presented to model the electrical conductivity, considering the outcome of discrete-element method simulations and the intrinsic conductivities of both the active material particles and the conductive additive particles. The results are calibrated and validated with the help of experimental data of real manufactured electrodes. The tortuosity, which strongly influences the ionic conductivity, is also presented for the analyzed electrodes, taking their microstructure into account.
Keywords:
All-solid-state battery electrodes
DEM simulations
Electrical conductivity
microstructure
Tortuosity
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