Clarifying the decisive factors for utilization efficiency of Mg anodes for primary aqueous batteries
By Deng, Min; Wang, Linqian; H
Published in Journal of Power Sources
2019
Abstract
Low anodic efficiency of metallic Mg, which results in low discharge capacity and specific energy density, hinders the wider application of aqueous primary Mg batteries. In this work, we clarify the decisive factors effecting the utilization efficiency of Mg anodes. Anodic efficiency of several Mg anodes at different current densities is measured in 3.5 wt% NaCl electrolyte. The contribution of self-corrosion at open circuit potential and at constant applied current to efficiency of Mg anodes is compared. Additionally, efficiency loss caused by detachment of undissolved metallic portions, namely
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