کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
279226 1430317 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cohesive modeling of crack nucleation under diffusion induced stresses in a thin strip: Implications on the critical size for flaw tolerant battery electrodes
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Cohesive modeling of crack nucleation under diffusion induced stresses in a thin strip: Implications on the critical size for flaw tolerant battery electrodes
چکیده انگلیسی

Recent advances in lithium-ion battery electrodes with huge volume changes during intercalation–deintercalation cycles are calling for studies on crack nucleation under diffusion induced stresses. Here we develop a cohesive model of crack nucleation in an initially crack-free strip electrode under galvanostatic intercalation and deintercalation processes. The analysis identifies a critical characteristic dimension below which crack nucleation becomes impossible. The critical size and other predictions of the model are compared to recent experiments on silicon nanowire electrodes. The results suggest nanostructured electrodes are highly promising for applications in high capacity batteries.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 47, Issue 10, 15 May 2010, Pages 1424–1434
نویسندگان
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