Performance of a magnesium–lithium alloy as an anode for magnesium batteries

Authors: A. Sivashanmugam¹; T. Prem kumar¹; N. Renganathan¹; S. Gopukumar²

Source: Journal of Applied Electrochemistry, Volume 34, Number 11, November 2004 , pp. 1135-1139(5)

Publisher: Springer

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Abstract:

In this work, we describe an evaluation of an Mg–Li alloy (Li: 13 wt %) for possible use in magnesium primary reserve batteries. Higher OCP for the Mg–Li alloy have been observed in 2 M MgCl₂ and MgBr₂ electrolyte. The corrosion rate of the Mg–Li alloy is found to be in the order: MgCl₂ < Mg(COOCH₃)₂ < MgSO₄ < MgBr₂ < Mg(ClO₄)₂. Mg–Li alloys exhibit higher (81%) anodic efficiencies even when the current density is increased to 8.6 mA cm ^-2. It has been observed that Mg–Li/MgCl₂/CuO cells offer higher operating voltage and capacity than those with the conventionally used Mg–Al alloy.

Keywords: battery anode; magnesium–lithium alloy; polarization study; reserve battery

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s10800-004-2728-3

Affiliations: 1: Central Electrochemical Research Institute, Karaikudi, 630 006, INDIA, 2: Central Electrochemical Research Institute, Karaikudi, 630 006, INDIA, Email: deepika_41@rediffmail.com

Publication date: 2004-11-01