✦ LIBER ✦

Cohesive modeling of crack nucleation in a cylindrical electrode under axisymmetric diffusion induced stresses

✍ Scribed by Tanmay K. Bhandakkar; Huajian Gao

Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 683 KB
Volume: 48
Category: Article
ISSN: 0020-7683
DOI: 10.1016/j.ijsolstr.2011.04.005

No coin nor oath required. For personal study only.

✦ Synopsis

We have recently modeled crack nucleation in a 2D strip electrode as localization of a periodic array of cohesive zones subject to diffusion induced stresses in an initially crack-free thin strip under galvanostatic solute insertion and extraction. Here we generalize this model to crack nucleation in a cylindrical electrode under axisymmetric diffusion induced stresses, focusing on the effect of the cylindrical geometry on the crack nucleation condition. Similar to our previous findings for the 2D strip geometry, the present analysis identifies a critical electrode size, typically in the nanometer range, to avoid crack nucleation.

📜 SIMILAR VOLUMES

Cohesive modeling of crack nucleation un

Cohesive modeling of crack nucleation under diffusion induced stresses in a thin strip: Implications on the critical size for flaw tolerant battery electrodes

✍ Tanmay K. Bhandakkar; Huajian Gao 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 631 KB

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 g