Further studies of the anodic dissolution in sodium chloride electrolyte of aluminium alloys containing tin and gallium
- 1 September 2009
- journal article
- research article
- Published by Elsevier BV in Journal of Power Sources
- Vol. 193 (2), 895-898
- https://doi.org/10.1016/j.jpowsour.2009.05.023
Abstract
As part of a programme to develop a high power density, Al/air battery with a NaCl brine electrolyte, the high rate dissolution of an aluminium alloy containing tin and gallium was investigated in a small volume cell. The objective was to define the factors that limit aluminium dissolution in condition that mimic a high power density battery. In a cell with a large ratio of aluminium alloy to electrolyte, over a range of current densities the extent of dissolution was limited to ∼1000 C cm−2 of anode surface by a thick layer of loosely bound, crystalline deposit on the Al alloy anode formed by precipitation from solution. This leads to a large increase in impedance and acts as a barrier to transport of ions.Keywords
This publication has 3 references indexed in Scilit:
- The study of aluminium anodes for high power density Al/air batteries with brine electrolytesJournal of Power Sources, 2007
- Use of video techniques to study the electrochemical activation and corrosion of aluminium alloysFaraday Discussions, 1992
- The Electrochemical Behavior of Al‐Ga Alloys in Alkaline and Neutral ElectrolytesJournal of the Electrochemical Society, 1987