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Mechanics of Silicon Electrodes in Lithium Ion Batteries


Abstract As one of the most promising materials for high capacity electrode in next generation of lithium ion batteries, silicon has attracted a great deal of attention in recent years. Advanced characterization techniques and atomic simulations helped to depict that the lithiation/delithiation of silicon electrode involves processes including large volume change (anisotropic for the initial lithiation of crystal silicon), plastic flow or softening of material dependent on composition, electrochemically driven phase transformation between solid states, anisotropic or isotropic migration of atomic sharp interface, and mass diffusion of lithium atoms. Motivated by the promising prospect of the application and underlying interesting physics, mechanics ... (more)
Created Date 2014
Contributor An, Yonghao (Author) / Jiang, Hanqing (Advisor) / Chawla, Nikhilesh (Committee member) / Phelan, Patrick (Committee member) / Wang, Yinmin (Committee member) / Yu, Hongyu (Committee member) / Arizona State University (Publisher)
Subject Mechanical engineering / Mechanics / coupling / diffusion / Lithium Ion Battery / Mechanics / phase change / Si
Type Doctoral Dissertation
Extent 149 pages
Language English
Copyright
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Note Ph.D. Mechanical Engineering 2014
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis