The formation of soluble Pb(IV) and Pb(II) species in the reactions of the PbSO4/PbO2 electrode
1987; Elsevier BV; Volume: 32; Issue: 1 Linguagem: Inglês
10.1016/0013-4686(87)87031-7
ISSN1873-3859
AutoresE. Hämeenoja, T. Laitinen, Göran Sundholm,
Tópico(s)Advanced battery technologies research
ResumoUsing a rotating gold ring—lead disc electrode and analysing the deposit on the ring surface with X-ray photoelectron spectroscopy, soluble Pb(IV) species were detected during the anodic reaction of the PbSO4/PbO2 electrode in sulfuric acid. The Pb(IV) species are not intermediates in the PbO2 formation but result from the chemical solubility of PbO2. Measurements of soluble Pb(II) proved that the "coup de fouet" commonly observed during the discharge of the lead acid battery is due to the oversaturation of Pb(II) ions.
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