Journal
CHEMICAL COMMUNICATIONS
Volume 56, Issue 99, Pages 15537-15540Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc06077a
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- Nissan Motor Co., Ltd., Japan
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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 x 10(-8) S cm(-1) with an activation energy of similar to 0.6 eV. The lithicone MLD process provides a pathway to further develop hybrid inorganic-organic Li-ion conducting materials for future battery applications.
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