Strontium-Enriched Barite for Enhanced PbSO₄ Nucleation in Lead-Acid Batteries.

ABSTRACT: Barite (BaSO₄) crystals are an important additive in lead acid batteries due to their ability to promote the controlled nucleation and growth of anglesite (PbSO₄) during battery cycling. This is due to BaSO₄'s isostructural match with PbSO₄, which facilitates epitaxial nucleation. However, BaSO₄'s efficacy as a nucleation promoter is limited by lattice mismatches between the two phases of 1-5%. Here, strontium-enriched barite, (Ba,Sr)SO₄, is synthesized to produce a nucleating promoter that displays an improved lattice match with PbSO₄. Nucleation of PbSO₄ from Pb-rich sulfuric acid solutions on strontium-free and strontium-enriched barite (up to 17 mol% Sr) is investigated using in-situ atomic force mi

SUBMITTER: Campbell CT 

PROVIDER: S-EPMC11962690 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature