Corrosion Resistant Polypyrrole Coated Lead-Alloy Positive Grids for Advanced Lead-Acid Batteries

Naresh, Vangapally and Elias, Liju and Gaffoor, S A and Martha, Surendra Kumar (2019) Corrosion Resistant Polypyrrole Coated Lead-Alloy Positive Grids for Advanced Lead-Acid Batteries. Journal of The Electrochemical Society, 166 (2). A74-A81. ISSN 0013-4651

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Abstract

We herein report a method for reducing lead-alloy positive grid corrosion in lead acid batteries by developing a polypyrrole (ppy) coating on to the surface of lead-alloy grids through potentiostatic polymerization technique. The experimental results demonstrate that the presence of ppy coating significantly enhances the corrosion resistance and inhibits the oxygen evolution rate as compare to bare grids. C-rate studies of 2 V/2.6 Ah lead-acid cells show ∼15–20% improvement in capacity at low charge-discharge rates (C/20- C/5) and ∼10% at high C rates (C/2 and 3C) for the cells with ppy coating grids in relation to conventional lead-acid cells.

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IITH Creators:	IITH Creators ORCiD Martha, Surendra Kumar UNSPECIFIED
Item Type:	Article
Uncontrolled Keywords:	Batteries-Lead acid, Grid corrosion, Lead-Acid Batteries, Polypyrrole
Subjects:	Chemistry
Divisions:	Department of Chemistry
Depositing User:	Team Library
Date Deposited:	14 Jan 2019 04:21
Last Modified:	14 Jan 2019 04:21
URI:	http://raiithold.iith.ac.in/id/eprint/4698
Publisher URL:	http://doi.org/10.1149/2.0211902jes
OA policy:	http://www.sherpa.ac.uk/romeo/issn/0013-4651/
Related URLs:	Google Scholar

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