Lead-acid batteries for partial-state-of-charge applications

Hariprakash, B and Gaffoor, SA and Shukla, AK (2009) Lead-acid batteries for partial-state-of-charge applications. In: Journal of Power Sources, 191 (1). pp. 149-153.

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Abstract

2 V/40 Ah valve-regulated lead-acid (VRLA) cells have been constructed with negative plates employing carbon black as well as an admixture of carbon black fumed silica as additives in negative active material for partial-state-of-charge (PSoC) applications. Electrical performance of such cells is compared with conventional 2 V/40 Ah VRLA cells for PSoC operation. Active material utilization has been found to be higher for carbon-black fumed-silica mixed negative plates while formation is faster for cells with carbon-black mixed negative plates. Both faradaic efficiency and percentage capacity delivered have been found to be higher for cells with carbon-black + fumed-silica mixed negative plates. However, a high self-discharge rate is observed for cells with carbon-black + fumed-silica mixed negative plates.

Item Type:	Journal Article
Publication:	Journal of Power Sources
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science .
Keywords:	Active-material utilization; Carbon-black; Fumed-silica; Partial-state-of-charge; Paste-density; Plate-porosity
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	28 Aug 2009 15:15
Last Modified:	19 Sep 2010 05:36
URI:	http://eprints.iisc.ac.in/id/eprint/21115

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