Further studies of the anodic dissolution in sodium chloride electrolyte of aluminium alloys containing tin and gallium
Nestoridi, Maria, Pletcher, Derek, Wharton, Julian A. and Wood, Robert J.K. (2009) Further studies of the anodic dissolution in sodium chloride electrolyte of aluminium alloys containing tin and gallium. Journal of Power Sources, 193, (2), 895-898. (doi:10.1016/j.jpowsour.2009.05.023).
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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:||aluminium alloy anodes, rapid dissolution, electrolyte|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TP Chemical technology
|Divisions:||Faculty of Natural and Environmental Sciences > Chemistry > Electrochemistry & Surface Science Group
|Date Deposited:||06 Nov 2012 10:15|
|Last Modified:||26 Apr 2013 07:26|
|Contributors:||Nestoridi, Maria (Author)
Pletcher, Derek (Author)
Wharton, Julian A. (Author)
Wood, Robert J.K. (Author)
|Date:||5 September 2009|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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