Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries

• Published in: Engineering fracture mechanics Vol. 253; p. 107866
• Main Authors: Chen, Yaoxing, Sang, Mengsha, Jiang, Wenjuan, Wang, Yan, Zou, Youlan, Lu, Chunsheng, Ma, Zengsheng
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 01.08.2021; Elsevier BV
• Subjects: Concentration gradient; Deformation; Diffusion effects; Diffusion-induced stress; Dislocation density; Elastoplasticity; Electrode materials; Finite element model; Interfacial damage; Li-ion battery; Lithium-ion batteries; Plastic properties; Rechargeable batteries; Size effects; Strain; Strain gradient plasticity; Substrates; Thickness; Diffusion-induced stress; Finite element model; Strain gradient plasticity; Interfacial damage; Li-ion battery

Schematic of a film electrode on a rigid substrate subject to Li+ insertion [Display omitted] •A model coupling the electrochemical reaction with strain gradient plasticity is developed.•The evolution and distributions of electrochemical-reaction dislocations are analyzed.•High-density dislocations...