Effect of depth of discharge on morphology and size of sulfate particles in VRLA battery electrodes

Suwarno*, Witantyo, Irawan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Lead-acid battery is widely used as automotive starting, lighting, and ignition (SLI) batteries. Due to economic of the production and rather simple manufacturing process, the lead-acid battery remains as a feasible type of battery for renewable energy storage application. However, the cycle life of battery is limited to several hundreds of cycles depends on operational conditions. The aim of the present work was to study the effect of depth of discharge (DoD) on the cycle life of a battery which is relevant for battery in renewable energy applications. The battery samples used in the present work were prepared from commercial SLI battery. The sample was cycled in 2 electrode systems at constant current charging and discharging procedure in an Autolab PGSTAT 302 N at different DoD, i.e. 40%, 60%, and 80% for 80 cycles. Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD) were used to characterize active materials after the cycle life test. The cycle test showed a significant formation of lead sulfate (PbSO4) on the negative and positive electrode and the highest level was found at 80% DoD. The sulfation decreased as DoD was reduced. Excessive lead sulfate (PbSO4) formation was found on the negative electrode at all the DoD regimes. This result indicates that decreasing cycle life of valve regulated lead acid (VRLA) battery is mostly caused by sulfation on the negative electrode.

Original languageEnglish
Title of host publicationDisruptive Innovation in Mechanical Engineering for Industry Competitiveness
Subtitle of host publicationProceedings of the 3rd International Conference on Mechanical Engineering, ICOME 2017
EditorsVivien S. Djanali, Suwarno, Bambang Pramujati, Volodymyr A. Yartys
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416994
DOIs
Publication statusPublished - 13 Jul 2018
Event3rd International Conference on Mechanical Engineering, ICOME 2017 - Surabaya, Indonesia
Duration: 5 Oct 20176 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1983
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Conference on Mechanical Engineering, ICOME 2017
Country/TerritoryIndonesia
CitySurabaya
Period5/10/176/10/17

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