Issue 99, 2020

Molecular layer deposition of Li-ion conducting “Lithicone” solid electrolytes

Abstract

We demonstrate the fabrication of Li-containing (“lithicone”) thin films prepared via molecular layer deposition (MLD) using lithium tert-butoxide and ethylene glycol. X-ray photoelectron spectroscopy reveals that the stoichiometry of the lithicone is Li1.5C2O1.8 (H omitted), with C–O–Li moieties present in the film. The bonding environment of lithicone is distinct from that of lithium carbonate or MLD alucone films. Electrochemical impedance spectroscopy measurements show that annealed lithicone films exhibit room temperature ionic conductivity of 3.6–5 × 10−8 S cm−1 with an activation energy of ∼0.6 eV. The lithicone MLD process provides a pathway to further develop hybrid inorganic–organic Li-ion conducting materials for future battery applications.

Graphical abstract: Molecular layer deposition of Li-ion conducting “Lithicone” solid electrolytes

Supplementary files

Article information

Article type
Communication
Submitted
09 sen 2020
Accepted
23 noy 2020
First published
08 dek 2020

Chem. Commun., 2020,56, 15537-15540

Molecular layer deposition of Li-ion conducting “Lithicone” solid electrolytes

E. Kazyak, M. Shin, W. S. LePage, T. H. Cho and N. P. Dasgupta, Chem. Commun., 2020, 56, 15537 DOI: 10.1039/D0CC06077A

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