Measurement of lithium diffusion coefficient in thin metallic multilayer by neutron depth profiling. (23rd June 2020)

• Record Type: Journal Article
• Authors: Ceccio, Giovanni; Vacik, Jiri; Horák, Pavel; Cannavò, Antonino; Hnatowicz, Vladimir
• Other Names: Oswald Steffen guestEditor.; Watts John F. guestEditor.; Abel Marie‐Laure guestEditor.
• Is Part Of: Surface and interface analysis. Volume 52:Number 12(2020)
• Page Start: 939
• Page End: 942
• Publication Date: 2020-06-23
• Subjects: copper -- lead -- lithium -- lithium‐ion batteries -- multilayers -- thermal neutrons; Surfaces (Physics) -- Periodicals; Surface chemistry -- Periodicals; Thin films -- Periodicals; 541.33
• DOI: 10.1002/sia.6826
• Languages: English
• ISSNs: 0142-2421

Abstract

Abstract : Diffusion of Li ions in thin sandwich films with copper or lead encompassing layers (obtained by ion beam sputtering deposition technique) has been studied. These metals are promising candidates for electrodes in lithium‐ion batteries. It is because they exhibit an ability to store and release Li ions during charging and discharging processes. Lithium diffusion was induced in samples by thermal annealing cycles. The lithium depth profile was measured using a nondestructive neutron depth profiling technique after each thermal annealing step. The analysis of experimental data allowed to evaluate the lithium depth profiles and directly calculate the diffusion coefficients.