US 9,812,737 B2
Plant and process for the electrochemical formation of lead-acid batteries
Pietro Farina, Villafranca (IT)
Assigned to SOVEMA S.P.A, Villafranca (IT)
Filed by SOVEMA S.p.A., Villafranca (VR) (IT)
Filed on Nov. 5, 2013, as Appl. No. 14/71,676.
Claims priority of application No. PD2012A0329 (IT), filed on Nov. 6, 2012.
Prior Publication US 2014/0123475 A1, May 8, 2014
Int. Cl. H01M 10/12 (2006.01); H01M 2/36 (2006.01); B65B 31/00 (2006.01); B67C 3/00 (2006.01)
CPC H01M 10/121 (2013.01) [H01M 2/362 (2013.01); H01M 10/12 (2013.01); B65B 31/00 (2013.01); B67C 3/00 (2013.01); Y02T 10/7016 (2013.01); Y10T 29/49108 (2015.01); Y10T 29/53135 (2015.01)] 10 Claims
OG exemplary drawing
 
1. Improved plant for the electrochemical formation of lead-acid batteries, of the type where each is provided with a rigid container (2′), closed on the upper part by a cover (2″), and containing at least one cell (2), said plant (1) comprising:
at least one external circuit (5) in which an electrolytic solution flows, such circuit provided with supply means (6) for conveying, in the cells (2) of said batteries, a flow of electrolytic solution at a controlled pressure, and return means (7) for extracting said flow of electrolytic solution from said cells (2); said supply means (6) comprising at least one distribution manifold (9) and at least one first valve (24) arranged upstream of said distribution manifold (9);
a plurality of metering caps (17) removably and sealingly mounted on the covers (2″) of said batteries at the same number of cells (2), each metering cap (17) being provided with:
at least one inlet duct (18) connected with a first connector (10) to said distribution manifold (9) for feeding a corresponding said cell (2) with said flow of electrolytic solution;
at least one outlet duct (19) connected with a second connector (13) to said return means (7) for extracting said flow of electrolytic solution from said cell (2);
wherein said improved plant comprises suction means connected to said distribution manifold (9) and configured for sucking, with said first valve (24) closed, the electrolytic solution contained in at least said distribution manifold (9) as well as lumps present in the inlet ducts (18) and/or in the first connectors (10);wherein said suction means comprise a suction duct (90) connected to said distribution manifold (9) and to said return means (7) bypassing said cells (2), and a low pressure source in communication with said suction duct (90) and configured for drawing the electrolytic solution from said distribution manifold (9) and conveying the electrolytic solution to said return means (7) through said suction duct (90).