The Effects of Internal Stress and Lithium Transport on Fracture in Storage Materials in Lithium-Ion Batteries

• Tác giả: Markus Klinsmann
• Ngôn ngữ: eng
• ISBN-13: 978-3731504559
• ISBN: KSP/1000050956
• Ký hiệu phân loại: 620 Engineering and allied operations
• Thông tin xuất bản: Karlsruhe : KIT Scientific Publishing, 2016
• Mô tả vật lý: 1 electronic resource (IX, 216 p. p.)
• Bộ sưu tập: Tài liệu truy cập mở
• ID: 231185

Tóm tắt

Fracture of storage particles is considered to be one of the major reasons for capacity fade and increasing power loss in Li-ion batteries. In this work, we tackle the problem by merging a coupled model of mechanical stress and diffusion of Li-ions with a phase field description of an evolving crack. The novel approach allows us to study the evolution of the Li concentration together with the initiation and growth of a crack in an arbitrary geometry and without presuming a specific crack path.