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    Exact diffusion-induced elastic fields of a spherical core-shell nano-electrode li-ion battery via spectral theory

    , Article Journal of the Electrochemical Society ; Volume 167, Issue 13 , 2020 Shodja, H. M ; Shahryari, B ; Azizi, P ; Roumi, F ; Sharif University of Technology
    IOP Publishing Ltd  2020
    Abstract
    In Li-ion batteries the interface between the nano-size spherical core graphite and its surrounding solid electrolyte interphase (SEI) layer, just inside SEI is susceptible to damage. Thus, accurate determination of the associated elastic fields is one of the challenges in optimizing the lifetime and capacity of Li-ion batteries. The required precision is achieved by considering the core graphite which belongs to the crystal class D6h as homogeneous spherically isotropic and SEI layer as functionally graded (FG) isotropic material. Moreover, to account for the surface/interface effects appropriately the core-shell nano-structure subjected to the diffusion-induced time-dependent nonuniform...