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Measurement of lithium diffusion coefficient in thin metallic multilayer by neutron depth profiling
Author(s) -
Ceccio Giovanni,
Vacik Jiri,
Horák Pavel,
Cannavò Antonino,
Hnatowicz Vladimir
Publication year - 2020
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6826
Subject(s) - annealing (glass) , sputtering , ion , analytical chemistry (journal) , thin film , materials science , copper , lithium (medication) , diffusion , metal , neutron temperature , neutron , chemistry , composite material , nanotechnology , metallurgy , nuclear physics , thermodynamics , medicine , physics , chromatography , endocrinology , organic chemistry
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.