2020
DOI: 10.1002/celc.202000165
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Electrodeposition of Zinc from Alkaline Electrolytes Containing Quaternary Ammonium Salts and Ionomers: Impact of Cathodic‐Anodic Cycling Conditions

Abstract: Dendrite suppression capabilities are key factors for the practical deployment of rechargeable Zn-based batteries. We propose a systematic electrochemical investigation, accompanied by SEM imaging, of the impact of representative quaternary ammonium (QA) salts and ionomers on Zn electrodeposition. Both cathodic and anodic processes were considered, because insoluble corrosion products can impact subsequent electrodeposition during cycling. We used simple cyclic voltammetry methods and developed a framework for… Show more

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Cited by 11 publications
(17 citation statements)
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“…The additive effects in a condition different from the nominally sought after one (cathodic polarization for levellers and anodic polarization for corrosion inhibitors) are not investigated in the existing literature, apart from seminal work in alkaline ambient. [21,23] From this paper it will appear clearly that mossy Zn formation is probably the single most critical unstable growth mode during recharge of Zn anodes in the c. d. range of practical interest. Thus, if an additive guarantees an effective suppression of highc.…”
Section: Introductionmentioning
confidence: 85%
See 1 more Smart Citation
“…The additive effects in a condition different from the nominally sought after one (cathodic polarization for levellers and anodic polarization for corrosion inhibitors) are not investigated in the existing literature, apart from seminal work in alkaline ambient. [21,23] From this paper it will appear clearly that mossy Zn formation is probably the single most critical unstable growth mode during recharge of Zn anodes in the c. d. range of practical interest. Thus, if an additive guarantees an effective suppression of highc.…”
Section: Introductionmentioning
confidence: 85%
“…The literature relevant for this topic was examined in detail and a critical account in brief is offered in Section S1 of the Supporting Information. In recent times, many studies were made concerning secondary battery application, these generally focus on the engineering and performances of materials, [11,20] but a very limited number of fundamental studies were found on the behaviour of Zn under the alternation of anodic and cathodic polarization conditions: [21][22][23] it is extremely complicated to describe and model univocally this process due to the wide range of parameters involved. This work concentrates on the analysis of the link between electrochemical behaviour upon cathodic/ anodic cycling and the morphology evolution -as followed by post mortem and in situ and micro-imaging -of Zn, in the form of foils, in mildly acidic aqueous electrolytes-the system of choice in ZIB present-day battery research-, that is also starting to be considered for Zn-air batteries -without and with addition of organic additives, quaternary ammonium salts (QASs), in particular.…”
Section: Introductionmentioning
confidence: 99%
“…The former process can be explained with the alternation of phases of cathodic metal outgrowth, leading to dead metal formation, followed by its passivation or by precipitation of ZnO layers. Tetrabutyl ammonium bromide (TBAB) addition (Figure 2B) brings about a much smoother electrode/electrolyte interface, with just some isolated outgrowth features [8]. Moreover, no precipitation of zinc-containing particles can be spotted in the electrolyte region.…”
Section: Resultsmentioning
confidence: 99%
“…Organic molecules include non-ionic dimethyl sulfoxide (Hosseini et al, 2019 ), thiourea (Goh et al, 2014 ; Sun et al, 2017 ), diethyl ether (Xu et al, 2019 ), polyacrylic acid (Shimizu et al, 2019 ); cationic quaternary ammonium (Rossi et al, 2020 ), benzyl trimethyl ammonium hydroxide (Liu et al, 2019b ), trimethyl octadecyl ammonium chloride (Shimizu et al, 2019 ), hexadecyl trimethyl ammonium bromide (Chladil et al, 2019 ), anionic sodium dodecyl sulfate (Miyazaki et al, 2016 ; Hosseini et al, 2018 ; Shimizu et al, 2019 ), and EMI-PF6 and EMI-TFSA (Song et al, 2016 ). Polymers include polyethyleneimine (Banik and Akolkar, 2015 ; Hashemi et al, 2017 ), Triton X-100 (Kan et al, 1998 ), polyvinyl alcohol (Ortiz-Aparicio et al, 2013 ), polyethylene glycol (Lee et al, 2006a ; Ballesteros et al, 2007 ; Banik and Akolkar, 2013 ), polyacrylamide (Zhang et al, 2019b ), Tween 20 (Chladil et al, 2019 ), and Pluronic F-127 (Hosseini et al, 2018 ).…”
Section: Strategies To Prevent Zinc Dendrite Formationmentioning
confidence: 99%