Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7725586 | Journal of Power Sources | 2018 | 9 Pages |
Abstract
We present the preparation and characterization of pure lead monoxide obtained through recycling of the lead paste recovered from exhausted lead acid batteries. The recycling is based on a hydrometallurgical procedure reported in a STC Patent, that includes simple chemical operations (desulphurisation, leaching, precipitation, filtration) and a final thermal conversion. Materials obtained by treatment at 600â¯Â°C consist predominantly of β-PbO. The electrochemical behaviour of Positive Active Mass (PAM) prepared from different materials (or mixtures) is then investigated and compared. An optimized oxide material, obtained by prolonged (8â¯h) thermal treatment at 600â¯Â°C, consists of pure β-PbO and appears suitable for preparation of battery elements, alone or in mixture with a small fraction (10%-30%) of traditional industrial leady oxide. The resulting battery performances are similar to those obtained from pure leady oxide. In comparison with traditional recycling processes, the proposed method guarantees lower energy consumption, limited environmental impact and reduced operating risk for industry workers.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
G. Fusillo, D. Rosestolato, F. Scura, S. Cattarin, L. Mattarozzi, P. Guerriero, A. Gambirasi, N. Brianese, P. Staiti, R. Guerriero, G. La Sala,