کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
797336 1467078 2014 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A computational homogenization approach for Li-ion battery cells: Part 1 – formulation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
A computational homogenization approach for Li-ion battery cells: Part 1 – formulation
چکیده انگلیسی

Very large mechanical stresses and huge volume changes emerge during intercalation and extraction of Lithium in battery electrodes. Mechanical failure is responsible for poor cyclic behavior and quick fading of electrical performance, especially in energy storage materials for the next generation of Li-ion batteries. A multi scale modeling of the phenomena that lead to mechanical degradation and failure in electrodes is the concern of the present publication. The computational homogenization technique is tailored to model the multi physics events that coexist during batteries charging and discharging cycles. At the macroscale, diffusion–advection equations model the coupling between electrochemistry and mechanics in the whole cell. The multi-component porous electrode, migration, diffusion, and intercalation of Lithium in the active particles, the swelling of the latter are modeled at the micro-scale. A rigorous thermodynamics setting is stated and scale transitions are formulated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanics and Physics of Solids - Volume 65, April 2014, Pages 114–137
نویسندگان
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