The influence of lithium excess in the target on the properties and compositions of Li1+x Mn2O4−δ thin films prepared by PLD

Simmen, Franziska; Lippert, Thomas; Novák, Petr M.; Neuenschwander, Beat; Döbeli, Max; Mallepell, Marc; Wokaun, Alexander (2008). The influence of lithium excess in the target on the properties and compositions of Li1+x Mn2O4−δ thin films prepared by PLD Applied Physics A, 93(3), pp. 711-716. Springer 10.1007/s00339-008-4701-1

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Li–Mn–O thin films were deposited by pulsed laser deposition (PLD) onto stainless steel substrates using targets containing different concentrations of added Li2O. The influence of the target composition on the stoichiometry of the resulting thin films, the surface morphology and the electrochemical properties was studied. The application of the target with added 7.5 mol% Li2O results in an almost ideal lithium content, while all films were still oxygen deficient. The thin films were applied as electrodes in Li//Li1+xMn2O4−δ cells (i.e. model cells for a rechargeableLi-ionbattery)andcharacterizedbycyclicvoltammetry and galvanostatic charge/discharge experiments. The electrochemical measurements of the thin films confirmed that the thin films can serve as good modelsystems and that they show a sufficient cyclability.

Item Type:

Journal Article (Original Article)

Division/Institute:

Engineering and Information Technology > Institute for Surface Applied Laser, Phototonics and Surface Technologies ALPS

Name:

Simmen, Franziska;
Lippert, Thomas;
Novák, Petr M.;
Neuenschwander, Beat;
Döbeli, Max;
Mallepell, Marc and
Wokaun, Alexander

Subjects:

Q Science > QC Physics

ISSN:

0947-8396

Publisher:

Springer

Language:

English

Submitter:

Beat Neuenschwander

Date Deposited:

22 Apr 2020 12:53

Last Modified:

18 Aug 2020 12:04

Publisher DOI:

10.1007/s00339-008-4701-1

ARBOR DOI:

10.24451/arbor.11303

URI:

https://arbor.bfh.ch/id/eprint/11303

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