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Lithium Deposition from a Piperidinium–based Ionic Liquid: Rapping Dendrites on the Knuckles

Berger, Claudia A.; Ceblin, Maximilian U.; Jacob, Timo

ChemElectroChem: fundamentals & applications, analysis & catalysis, bio & nano, energy & more. Volume 4:Issue 2 (2017); pp 261-265 -- Wiley-VCH

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  • Title:
    Lithium Deposition from a Piperidinium–based Ionic Liquid: Rapping Dendrites on the Knuckles
  • Author: Berger, Claudia A.;
    Ceblin, Maximilian U.;
    Jacob, Timo
  • Found In: ChemElectroChem: fundamentals & applications, analysis & catalysis, bio & nano, energy & more. Volume 4:Issue 2 (2017); pp 261-265
  • Journal Title: ChemElectroChem: fundamentals & applications, analysis & catalysis, bio & nano, energy & more
  • Subjects: Electrochemistry--Periodicals; lithium--dendrites--ionic liquids--electrodeposition; Dewey: 541.37
  • Rights: legaldeposit
  • Publication Details: Wiley-VCH
  • Abstract: Abstract:

    Using cyclic voltammetry (CV), in‐situ scanning tunneling microscopy (STM) and electrochemical quartz crystal microbalance (EQCM) the initial stages of lithium deposition on Au(111) from a solution of lithium bis(trifluoromethylsulfonyl)imide in the commercially available ionic liquid 1‐methyl‐1‐propylpiperidinium bis(trifluoromethylsulfonyl)imide (MPPipTFSI) were investigated. We could identify three distinct cathodic peaks in the potential range from 0 to −2.5 V (vs. Pt quasi ‐reference electrode), corresponding to different lithium deposition modes. While in the potential region of the under‐potential deposition (UPD) (−1.2 to −1.8 V) the growth of monoatomic high islands (300–370 pm) takes place, Li bulk deposition occurs at potentials <−2.3 V. Finally, the third peak at 0 V, which only appears after a previous bulk deposition, is connected to a strand‐like growth of lithium at (111) terraces with a uniform orientation over the whole substrate. Interestingly, once reaching a step‐edge, the one‐dimensional growth continues into the electrolyte, indicating the initial stages of Li dendrite formation.

    Abstract :

    As the initial stages of a processoften determine its overall long‐term behavior, in this work we addressed exactly these fundamental processes for the lithium dendrite formation on Au(111) model electrodes using CV, in‐situ STM and EQCM. Based on the obtained results we could deduce suggestions to prevent dendrite growth, which might help solving one of the severe safety issues in Li‐ion batteries.


  • Identifier: System Number: LDEAvdc_100044622993.0x000001; Journal ISSN: 2196-0216; 10.1002/celc.201600730
  • Publication Date: 2017
  • Physical Description: Electronic
  • Shelfmark(s): ELD Digital store

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