Journal of Chemical Sciences

, Volume 118, Issue 1, pp 93–98 | Cite as

A low-cost lead-acid battery with high specific-energy

  • S. K. Martha
  • B. Hariprakash
  • S. A. Gaffoor
  • D. C. Trivedi
  • A. K. Shukla


Lightweight grids for lead-acid battery grids have been prepared from acrylonitrile butadiene styrene (ABS) copolymer followed by coating with lead. Subsequently, the grids have been electrochemically coated with a conductive and corrosion-resistant layer of polyaniline. These grids are about 75% lighter than those employed in conventional lead-acid batteries. Commercial-grade 6V/3.5Ah (C20-rate) lead-acid batteries have been assembled and characterized employing positive and negative plates constituting these grids. The specific energy of such a lead-acid battery is about 50 Wh/kg. The batteries can withstand fast charge-discharge duty cycles.


Lead-acid battery specific energy polyaniline corrosion 


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Copyright information

© Indian Academy of Sciences 2006

Authors and Affiliations

  • S. K. Martha
    • 1
  • B. Hariprakash
    • 1
  • S. A. Gaffoor
    • 2
  • D. C. Trivedi
    • 3
  • A. K. Shukla
    • 1
    • 3
  1. 1.Solid State and Structural Chemistry UnitIndian Institute of ScienceBangalore
  2. 2.NED Energy LtdHyderabad
  3. 3.Central Electrochemical Research InstituteKaraikudi

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