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.
Umfang: IX, 216 S.
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Klinsmann, M. 2016. The Effects of Internal Stress and Lithium Transport on Fracture in Storage Materials in Lithium-Ion Batteries. Karlsruhe: KIT Scientific Publishing. DOI: https://doi.org/10.5445/KSP/1000050956
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Veröffentlicht am 8. März 2016
Englisch
246
Paperback | 978-3-7315-0455-9 |