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A new lead/lead sulphate reference electrode for lead/acid battery research

Vijayamohanan, K and Sathyanarayana, S and Joshi, SN (1989) A new lead/lead sulphate reference electrode for lead/acid battery research. In: Journal of Power Sources, 27 (2). pp. 167-176.

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A description is given of a new reference electrode made from the porous lead plate material used in the lead/acid battery. The reproducibility and stability of the equilibrium potential is achieved by keeping the state-of-charge at 0.90 $\pm$ 0.05, and by using 4.80 M $(25 ^oC)$ $H_2SO_4$ solution as electrolyte. The latter avoids passivation effects and minimises liquid junction potentials with the test solution. The electrode, represented as $Pb(porous)/PbSO_4$, $H_2SO_4$ (4.80 M), shows a value of 0.9678 $\pm$ 0.0005 V versus an $Hg/Hg_2SO_4$ electrode at $25 ^oC $ in the same solution. This potential is indefinitely stable if the electrode is reconditioned every three months by a charge-discharge cycle using conventional $PbO_2$ lead/acid battery plates as counter electrodes.

Item Type: Journal Article
Publication: Journal of Power Sources
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 24 Feb 2008
Last Modified: 19 Sep 2010 04:42
URI: http://eprints.iisc.ac.in/id/eprint/12898

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