Control of magnesium interfacial reactions in aqueous electrolytes towards a biocompatible battery
Data(s) |
20/08/2008
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Resumo |
A stable magnesium battery has been developed based on a magnesium anode, a poly(dioxyethane thiophene) (PEDOT) cathode and a near-saturated aqueous solution of LiCl, MgCl<sub>2</sub>, or mixture of these salts at pH of 11. This combination leads to a low water activity in the electrolyte, which thus suppresses the hydrogen evolution reaction on Mg, as well as producing a stable oxy-hydroxide film which protects the metal surface from freely corroding. The conducting polymer cathode is reduced somewhat during the discharge process, however, appears to be readily re-oxidised (as determined from the resistance) by the oxygen present in the cell. The cell is therefore primarily a Mg/O<sub>2</sub> battery, however, the PEDOT appears to enhance the performance, in particular the discharge voltage.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier Science Pub. Co. |
Relação |
http://dro.deakin.edu.au/eserv/DU:30030293/forsyth-controlofmagnesium-2008.pdf http://dx.doi.org/10.1016/j.electacta.2008.04.005 |
Direitos |
2008, Elsevier Ltd. |
Palavras-Chave | #Mg passivation #primary battery #aqueous electrolyte #Poly(3,4-ethylene dioxythiophene) #biocompatible battery |
Tipo |
Journal Article |