Some structural and textural aspects of tribasic lead sulfate precipitation during the mixing of lead-acid battery positive paste

Journal Article · Tue Aug 01 00:00:00 EDT 1995 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.2050079· OSTI ID:110130

Vallat-Joliveau, F; Delahaye-Vidal, A; Figlarz, M ^[1]; Guibert, A de ^[2]

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1. Univ. de Picardie Jules Verne, Amiens (France). Lab. de Reactivite et de Chimie des Solides
2. CEAC, Clichy (France)

The reaction between PbO and H{sub 2}SO{sub 4} in water leading to the formation of tribasic lead sulfate hydrate was studied using pH measurements, X-ray diffraction, scanning and transmission electron microscopy, and infrared spectroscopy. The authors examined the effect of different parameters such as temperature, starting composition, PbO source, order of the materials addition, and presence of carbonates, on PbO-H{sub 2}SO{sub 4} reaction. From this study, a mechanism is proposed for the reaction. It explains why, by mixing PbO and H{sub 2}SO{sub 4} in water, the tribasic lead sulfate cannot be obtained as a pure phase. Some unreacted PbO always remains at the end of the reaction.

• Sponsoring Organization: USDOE
• OSTI ID: 110130
• Journal Information: Journal of the Electrochemical Society, Vol. 142, Issue 8; Other Information: PBD: Aug 1995
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
LEAD-ACID BATTERIES
PERFORMANCE
ANODES
FABRICATION
LEAD OXIDES
SULFURIC ACID
PRECIPITATION
LEAD SULFATES
HYDRATES
CHEMICAL REACTION KINETICS
CURING
PHASE TRANSFORMATIONS