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

• Главный автор: Zhang, Tao (auth)
• Формат: Электронный ресурс Глава книги
• Язык: английский
• Опубликовано: Karlsruhe KIT Scientific Publishing 2021
• Серии: Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie 87
• Предметы: Mechanical engineering & materials; Phasenfeldansatz; Phasentrennung; Nichtlokalität; Endliche Verformungselastizität; Sekundärbatterien; Phase-field approach; Phase segregation; Nonlocality; Finite deformation elasticity; Secondary batteries
• Online-ссылка: OAPEN Library: download the publication; OAPEN Library: description of the publication

Итог

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.

Объем

1 electronic resource (224 p.)

ISBN

KSP/1000100537
9783731510024

Доступ

Open Access