Evaluation of Decomposition Products of EMImCl*1.5 AlCl3 During Aluminium Electrodeposition with Different Analytical Methods

Sandra Pötz*, Patricia Monika Handel, Gisela Fauler, Bernd Fuchsbichler, Martin Schmuck, Stefan Koller

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Ionic liquids are of great importance for electrodeposition of metals, which can't be deposited from aqueous electrolytes due to their negative standard potentials. In this paper non-woven polymers were coated with aluminium by electrodeposition from 1-ethyl-3-methyl-imidazolium chloride and subsequently established as 3D current collectors for lithium-ion batteries. We investigated the long-term stability of the ionic liquid (IL) for electrodeposition of aluminium under process-oriented conditions. The degradation products were analysed by headspace gas chromatography-mass spectrometry, pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) and 1H/13C nuclear magnetic resonance spectroscopy (NMR). The main decomposition products derived from thermal degradation, especially from cleavage of an alkyl chain and were identified as chloromethane, dichloromethane, methylimidazole, ethylimidazole and deprotonated 1-ethyl-3-methylimidazole.
Original languageEnglish
Pages (from-to)6685-6690
JournalRSC Advances
Issue number13
Publication statusPublished - 2014

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Experimental

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