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

Download or read book The Effects of Internal Stress and Lithium Transport on Fracture in Storage Materials in Lithium-Ion Batteries written by Klinsmann, Markus and published by KIT Scientific Publishing. This book was released on 2016-03-08 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.