4.6 Article

High current density, efficient cycling of Zn2+ in 1-ethyl-3-methylimidazolium dicyanamide ionic liquid: The effect of Zn2+ salt and water concentration

Journal

ELECTROCHEMISTRY COMMUNICATIONS
Volume 18, Issue -, Pages 119-122

Publisher

ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2012.02.034

Keywords

Zinc-air battery; Ionic liquid; Electrodeposition; Zinc electrochemistry; Dendrite

Funding

  1. Australian Research Council through the Centre of Excellence for Electromaterials Science

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The electrodeposition and dissolution of Zn2+ have been investigated in 1-ethyl-3-methylimidazolium dicyanamide [emim][dca] ionic liquid to support the development of Zn-based secondary batteries. Cyclic voltammetry indicates that the zinc salt dissolved in the ionic liquid (IL) is a critical factor in the observed Zn/Zn2+ electrochemistry. The Zn2+ salt anions were found to have varying interaction strengths with the dissolved Zn2+ species in the order dicyanamide

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