Effects of electrolyte stratification on performances of AGM valve-regulated lead-acid batteries

Hu, Junmei; Guo, Yonglang

doi:10.1016/j.electacta.2007.04.089

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Hu et al reported that the immobilization of electrolyte in AGM VRLA batteries reduces the electrolyte stratification without eliminating it. 9 As reported by Ebner et al, also the temperature influences the acid stratification varying the thickness of the acid concentration gradient. 10 In order to immobilize the electrolyte, the AGM separator has been developed.…”

Section: Introductionmentioning

confidence: 75%

Behavior Modification of Nanostructured PbO₂ Electrodes in Lead Acid Batteries Changing Electrolyte Concentration and Separator

Greco

Moncada

Sunseri

et al. 2019

j nanosci nanotechnol

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Currently, lead acid battery is extensively investigated owing to its prevalent use as a startinglighting and ignition device. An essential role for electrochemical reactions is played by the surface area available for conversion reactions and a possible approach is the use of nanostructured electrodes. In this work, lead dioxide nanostructured electrodes were tested in order to investigate the dependence of the charge and discharge behaviour on some parameters such as electrolyte concentration, and a new type of thin separator. In this last case, it is possible to reduce the size of the cell by using a very thin separator comparable to the nanostructured electrode thickness. Besides, a low concentration of electrolyte was also tested for studying its influence on the performance of a nanostructured electrode. Lead dioxide electrodes were cycled at 1C-rate and discharged to a cutoff voltage of 1.2 V up to 90% of the gravimetric capacity. Electrodes were assembled in a zero gap configuration using a commercial negative plate as counter-electrode with a large excess of active mass in comparison to the nanostructured one. Tests were conducted in very stressful conditions, in order to compare the behaviour of this new type of battery with that of the commercial one.

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Section: Introductionmentioning

confidence: 75%

Behavior Modification of Nanostructured PbO₂ Electrodes in Lead Acid Batteries Changing Electrolyte Concentration and Separator

Greco

Moncada

Sunseri

et al. 2019

j nanosci nanotechnol

View full text Add to dashboard Cite

show abstract

“…Currently, a plate is formed by porous paste and lead grid pressed together, where the paste acts as an active material and grid as a current collector. The plates are vertically arranged with consequent sulphuric acid stratification that favours hard sulfation, particularly at high C-rate [29,30]. In addition, the contact between grid and active material is critical owing to possible electrical conduction interruption due to insulating lead sulphate formation on discharging and grid corrosion of positive plate [31].…”

Section: Introductionmentioning

confidence: 99%

Template electrodeposition and characterization of nanostructured Pb as a negative electrode for lead-acid battery

Insinga

Oliveri

Sunseri

et al. 2019

Journal of Power Sources

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Effects of carbon additives on the performance of negative electrode of lead-carbon battery

Zou

Kang

Shu

et al. 2015

Electrochimica Acta

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Effects of electrolyte stratification on performances of AGM valve-regulated lead-acid batteries

Cited by 4 publications

References 21 publications

Behavior Modification of Nanostructured PbO₂ Electrodes in Lead Acid Batteries Changing Electrolyte Concentration and Separator

Behavior Modification of Nanostructured PbO₂ Electrodes in Lead Acid Batteries Changing Electrolyte Concentration and Separator

Template electrodeposition and characterization of nanostructured Pb as a negative electrode for lead-acid battery

Effects of carbon additives on the performance of negative electrode of lead-carbon battery

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Effects of electrolyte stratification on performances of AGM valve-regulated lead-acid batteries

Cited by 4 publications

References 21 publications

Behavior Modification of Nanostructured PbO2 Electrodes in Lead Acid Batteries Changing Electrolyte Concentration and Separator

Behavior Modification of Nanostructured PbO2 Electrodes in Lead Acid Batteries Changing Electrolyte Concentration and Separator

Template electrodeposition and characterization of nanostructured Pb as a negative electrode for lead-acid battery

Effects of carbon additives on the performance of negative electrode of lead-carbon battery

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Product

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About

Behavior Modification of Nanostructured PbO₂ Electrodes in Lead Acid Batteries Changing Electrolyte Concentration and Separator

Behavior Modification of Nanostructured PbO₂ Electrodes in Lead Acid Batteries Changing Electrolyte Concentration and Separator