Influence of H2SO4 concentration on lead-acid battery performance

Pavlov, D.; Naidenov, V.; Ruevski, S.

doi:10.1016/j.jpowsour.2006.03.081

Cited by 30 publications

(14 citation statements)

References 19 publications

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“…During the discharge, this can be formation of Pb(OH) 2 and orthorhombic-PbO, which cannot be converted to PbSO 4 . Also recent studies showed that when the electrolyte density is higher than or equal to 1.28 s.g., the discharge capacity decreases compared to s.g. 1.24 g ml −1 , where the capacity is maximal [56]. The morphology of the lead dioxide and the ␣/␤ ratio also changes dramatically from electrolytes with s.g. 1.24-1.28 g ml −1 : the deposits, obtained in electrolyte with s.g. 1.28 g ml −1 by Planté cycling, present much less surface and much more ␣-PbO 2 and tetragonal-PbO, compared with deposits obtained in electrolytes with s.g. 1.24 g ml −1 : where the obtained anodic layers are thicker, with developed surface and built mainly by ␤-PbO 2 [53][54][55].…”

Section: Evolution Of the Parameters Associated With The Gel Part Of mentioning

confidence: 99%

“…This result coincides with some recently reported results about the electrochemical activity of the lead dioxide in electrolytes with different concentrations. Both the studies on flat model electrodes and on pasted positive plates show that electrolyte density equal to 1.28 s.g. or higher causes loss of electrochemical activity of the lead dioxide [53][54][55] as well as decreased discharge capacity and shorter cycle life of the positive plate [56].…”

Section: Impedance Of the Positive Plate Inmentioning

confidence: 99%

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Studies of the pulse charge of lead-acid batteries for PV applications

Kirchev

Delaille

Perrin

et al. 2007

Journal of Power Sources

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Section: Evolution Of the Parameters Associated With The Gel Part Of mentioning

confidence: 99%

Section: Impedance Of the Positive Plate Inmentioning

confidence: 99%

Studies of the pulse charge of lead-acid batteries for PV applications

Kirchev

Delaille

Perrin

et al. 2007

Journal of Power Sources

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“…Hence, to ensure sufficient “sacrificial” water, mass convection, and avoid electrolyte stratification during operation, the concentrated acid electrolyte must be reasonably diluted from saturation. In fact, converse to commercial LIB systems, higher power rate cycling and less concentrated electrolytes both directly contribute to longer cycle lives of lead–acid batteries …”

Section: Introductionmentioning

confidence: 99%

Water in Rechargeable Multivalent‐Ion Batteries: An Electrochemical Pandora's Box

et al. 2019

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Multivalent‐ion batteries built on water‐based electrolytes represent energy storage at suitable price points, competitive performance, and enhanced safety. However, to comply with modern energy‐density requirements, the battery must be reversible within an operating voltage window greater than 1.23 V or the electrochemical stability limits of free water. Taking advantage of its powerful solvation and catalytic activities, adding water to electrolyte preparations can unlock a wider gamut of liquid mixtures compared with strictly nonaqueous systems. However, a point‐by‐point sweep of all potential formulations is arduous and ineffective without some form of systematic rationalization. The present Review consolidates recent progress, pitfalls, limits, and insights critical to expediting aqueous electrolyte designs to boost multivalent‐ion battery outputs.

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“…The anodic and cathodic peaks obtained between -1.10 -(-0.9) V, represents the formation of lead sulfate from metallic lead and metallic lead from lead sulfate, respectively [21][22][23]. Here, we have investigated the formation of lead sulfate in cyclic voltammetric studies.…”

Section: Effect Of Al2o3mentioning

confidence: 99%

A Novel Gel Electrolyte for Valve-Regulated Lead Acid Battery

Gençten¹,

Dönmez²,

Şahin³

2017

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY a - Applied Sciences and Engineering

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A novel gel electrolyte system used in lead-acid batteries was investigated in this work. The gel systems were prepared by addition of different amount of Al2O3, TiO2 and B2O3 into the gelled system consisting of 6 wt% fumed silica and 30 wt% sulfuric acid solution for the first time. The anodic peak currents and peak redox capacities of the gel electrolytes were characterized by cyclic voltammetric method. When B2O3 and Al2O3 were used as additives in fumed silica based gel electrolyte system, the anodic peak currents and peak redox capacities decreased. However, the investigated parameters in cyclic voltammetry (anodic peak current and capacities) increased by the adding of 3.0 wt% of TiO2 in the fumed silica based gel system. The solution and charge transfer resistances of the gel electrolytes were investigated by electrochemical impedance spectroscopy. While the solution resistances were lower in gel systems having different amount additives than pure fumed silica based gel, the charge transfer resistance was the lowest in gel electrolytes consisting fumed silica and fumed silica-TiO2. The morphological differences of gelled systems were elucidated by scanning electron microscopic and optic microscopic analysis. The battery performances were studied by obtaining discharge curves of prepared gel electrolytes. The performance of gelled systems were higher than that of non-gelled electrolyte at room temperature. The mixture of fumed silica-TiO2 was suggested an alternative gel formulation for gel valve-regulated lead acid batteries. TiO2 can be a useful additive for gel-VRLA batteries.

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Influence of H2SO4 concentration on lead-acid battery performance

Cited by 30 publications

References 19 publications

Studies of the pulse charge of lead-acid batteries for PV applications

Studies of the pulse charge of lead-acid batteries for PV applications

Water in Rechargeable Multivalent‐Ion Batteries: An Electrochemical Pandora's Box

A Novel Gel Electrolyte for Valve-Regulated Lead Acid Battery

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