Modeling mechanical interaction between Li dendrite growth and the solid-electrolyte interphase

doi:10.1016/j.est.2025.117587

Modeling mechanical interaction between Li dendrite growth and the solid-electrolyte interphase

2025-07-04

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DOI：10.1016/j.est.2025.117587

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• Main mechanism of SEI stress and deformation is interfacial velocity difference which is generated by non-uniform Li growth. • Mechanical interaction between the SEI and Li dendrite shows a concentration of local stress at the dendrite tip (~90MPa). • Self-consistently capturing electro-chem-mech degrees of freedom including SEI moving, stress, overpotential, and morphology, • Developing a general continuum mechano-electro-chemical phase-field Li dendrite-SEI model. • For ideal uniform Li deposition, the Li growth velocity mainly contributes to SEI moving.

Modeling mechanical interaction between Li dendrite growth and the solid-electrolyte interphase

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