Lithium ionic intercalation and conduction performance of flexible-lithiated-iron oxides films synthesized by low temperature-atmospheric pressure-plasma polymerization

The lithium ionic intercalation and conduction performance of flexible-organo-lithiated iron oxide (Li x FeO y C z ) films enhanced by addition of organo-lithium oxides (LiO y C z ) into organo-iron oxide (FeO y C z ) films by an atmospheric pressure plasma jet (APPJ) at various mixed concentrations...

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Bibliographic Details
Published in:Ionics 2019-04, Vol.25 (4), p.1577-1593
Main Authors: Lin, Y.-S., Lin, S.-W., Liao, M.-C., Lai, Y.-H., Gu, Z.-W.
Format: Article
Language:English
Subjects:
Atmospheric pressure
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemical impedance spectroscopy
Electrochemistry
Energy Storage
Indium tin oxides
Intercalation
Ion currents
Iron oxides
Lithium
Lithium oxides
Lithium t-butoxide
Low temperature
Optical and Electronic Materials
Original Paper
Plasma jets
Polyethylene terephthalate
Polymerization
Precursors
Propylene
Renewable and Green Energy
Substrates
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Summary:The lithium ionic intercalation and conduction performance of flexible-organo-lithiated iron oxide (Li x FeO y C z ) films enhanced by addition of organo-lithium oxides (LiO y C z ) into organo-iron oxide (FeO y C z ) films by an atmospheric pressure plasma jet (APPJ) at various mixed concentrations of ferrocene [Fe(C 5 H 5 ) 2 ] and lithium tert-butoxide [(CH 3 ) 3 COLi] precursors are investigated. A rapid deposition of Li x FeO y C z films onto 40 Ω/square flexible polyethylene terephthalate (PET)/indium tin oxide (ITO) substrates at short exposed durations of 37–38 s with an APPJ has been reported. The APPJ-polymerized Li x FeO y C z films possess outstanding Li + ionic intercalation performance in a 1 M LiClO 4 -propylene carbonate electrolyte as characterized both by potential sweep and potential step in situ Li + ionic intercalation. The Li + ionic intercalated (deintercalated) charge of 7.73 (6.28) mC/cm 2 for FeO y C z films is advanced to 11.59 (11.22) mC/cm 2 for Li x FeO y C z films. The superior Li + ionic conduction performance of Li x FeO y C z films has been demonstrated by electrochemical impedance spectroscopy in the device of PET/ITO/NiO x /Li x FeO y C z /NiO x /ITO, while the Li + ionic conductivity of up to 793.0 × 10 −10  S/cm at 10% of lithium tert-butoxide precursor addition is accomplished.
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-018-2639-7