Cover Image

Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries

Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied to understand phase changes and stress evolution. Furthermore, we study the part...

Full description

Saved in:
Main Author: Zhang, Tao
Format: Online
Language:English
Published: KIT Scientific Publishing 2021
Subjects:
Phasenfeldansatz
Phasentrennung
Nichtlokalität
Endliche Verformungselastizität
Sekundärbatterien
Phase-field approach
Phase segregation
Nonlocality
Finite deformation elasticity
Secondary batteries
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
Online Access:ONIX_20211013_9783731510024_43
Tags: Add Tag
No Tags, Be the first to tag this record!
Summary:Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied to understand phase changes and stress evolution. Furthermore, we study the particle size and SOC dependent miscibility gap of the nanoscale insertion materials. Finally, we introduce the nonlocal species concentration theory, and show how the nonlocality influences the results.

Similar Items