Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries
Zhang, Tao
Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries - Karlsruhe KIT Scientific Publishing 2021 - 1 electronic resource (224 p.)
Open Access
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.
Creative Commons
English
KSP/1000100537 9783731510024
10.5445/KSP/1000100537 doi
Mechanical engineering & materials
Phasenfeldansatz Phasentrennung Nichtlokalität Endliche Verformungselastizität Sekundärbatterien Phase-field approach Phase segregation Nonlocality Finite deformation elasticity Secondary batteries
Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries - Karlsruhe KIT Scientific Publishing 2021 - 1 electronic resource (224 p.)
Open Access
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.
Creative Commons
English
KSP/1000100537 9783731510024
10.5445/KSP/1000100537 doi
Mechanical engineering & materials
Phasenfeldansatz Phasentrennung Nichtlokalität Endliche Verformungselastizität Sekundärbatterien Phase-field approach Phase segregation Nonlocality Finite deformation elasticity Secondary batteries