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Preliminary studies on a rechargeable acidic lead/mercury battery

Authors
Journal
Journal of Power Sources
0378-7753
Publisher
Elsevier
Volume
32
Issue
2
Identifiers
DOI: 10.1016/s0378-7753(12)80008-5

Abstract

Summary The charge/discharge and cycle-life characteristics of a cell consisting of a Pb/PbSO4 and a Hg/Hg2SO4 electrode in aqueous H2SO4 (7 N and 14 N) have been studied. The charging curves show two plateau regions at ∼ 1.0 and ∼ 1.6 – 1.8 V. The discharge curves are fairly rectangular in shape with a plateau around 0.95 V and the efficiency goes beyond ∼ 90% under favourable conditions. The cell can be cycled at ∼ 80% depth of discharge without significant loss in capacity. However, on open circuit storage the cell loses half of its initial charge within 3 – 4 days.

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