Characterization of the 3-dimensional microstructure of a graphite negative electrode from a Li-ion battery

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A continuum of physics-based lithium-ion battery models reviewed (2022, background): “from tomography imaging [77, 112, 113]) which is also a complex task, especially when one considers that the extremely convoluted binder structure should be properly resolved.”
Tortuosity in electrochemical devices: a review of calculation approaches (2018, methodology): “112, 113], the distance propagation method [114], as well as or other shortest path search methods [115, 116] achieve this by being executed on the voxel domain of the analysed phase.”
Validity of the Bruggeman relation for porous electrodes (2013, methodology): “Shearing and Harris used x-ray tomography to analyze tortuosity homogeneity [20, 33], and found that microstructural variations across the electrode can locally increase the tortuosity by a factor of three.”