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Article Dans Une Revue Energy & Environmental Science Année : 2020

Understanding the nature of the passivation layer enabling reversible calcium plating

Résumé

As for other multivalent systems, the interface between the calcium (Ca) metal anode and the electrolyte is of paramount importance for reversible plating/stripping. Here, we combined experimental and theoretical approaches to unveil the potential solid electrolyte interphase (SEI) components enabling facile Ca plating. Borates compounds, in the form of cross-linked polymers are suggested as divalent conducting component. A pre-passivation protocol with such SEI is demonstrated and allows to broaden the possibility for electrolyte formulation. We also demonstrated a 10-fold increase in Ca plating kinetics by tuning the cation solvation structure in the electrolyte limiting the degree of contact ion pair.

Domaines

Chimie Matériaux
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Dates et versions

hal-03030874 , version 1 (30-11-2020)

Licence

Paternité - Pas d'utilisation commerciale

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Citer

Juan Forero-Saboya, Carine Davoisne, Rémi Dedryvère, Ibraheem Yousef, Pieremanuele Canepa, et al.. Understanding the nature of the passivation layer enabling reversible calcium plating. Energy & Environmental Science, 2020, 13, pp.3423 - 3431. ⟨10.1039/d0ee02347g⟩. ⟨hal-03030874⟩
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