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11 février 2021
- handle: 10670/1.3w6wg5
- 35229
- 21929963
Ce document est lié à :
Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie
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T1-995Sujets proches
Description Description, geography Work, Method of Industry (Psychology) Method of work Size of particles Pattern Model Gases--Diffusion Liquids--Diffusion Cells, Lithium ion Li-ion batteries Electrochemical cells, Lithium ion LIBs (Lithium ion batteries) Lithium ion electrochemical cells Lithium ion cells broadcastingCiter ce document
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Résumé
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.