Water Loss Predictive Tests in Flooded Lead‐Acid Batteries. Issue 22 (26th October 2022)

• Record Type: Journal Article
• Authors: Parnigotto, Mattia; Mazzucato, Marco; Fabris, Daniele; Dainese, Lorenzo; Cazzanti, Silvia; Bortolamei, Nicola; Durante, Christian
• Is Part Of: ChemElectroChem. Volume 9:Issue 22(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-10-26
• Subjects: Flooded -- grid corrosion -- lead acid batteries -- oxygen recombination reaction -- water loss; Electrochemistry -- Periodicals; 541.37
• DOI: 10.1002/celc.202200883
• Languages: English
• ISSNs: 2196-0216

Abstract

Abstract: Different aging processes rates of flooded lead–acid batteries (FLAB) depend strongly on the operational condition, yet the difficult to predict presence of certain additives or contaminants could prompt or anticipate the aging. Linear sweep current (LSC) and gas test (GT) characterizations were reported here to fasten the water consumption evaluation. The two methods were proposed to evaluate the water consumption effect at 60 °C, on a custom cell with a (1+ 2−) plate configuration. The predictive ability of the proposed tests was verified on 9 batches of plates for FLAB preliminary tested with the European standard CEI EN 50342‐1 : 2019‐11 method. LSC and GT tests showed the capability to identify plate batches with anomalous behaviour for the water consumption and good agreement with the European standard CEI EN 50342‐1 : 2019‐11 method. Furthermore, it was found that Tafel parameters determined from LSC and GT tests correlated well with the concentration of Te. Abstract : A fast screening method : for evaluating water loss in flooded lead acid batteries was set up and the Tafel parameters for both linear sweep voltammetry and gas analysis tests, determined at 60 °C for water consumption, correlated well with the concentration of Te contaminant, to be considered responsible for the increased water consumption.