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

Hariprakash, B. ; Gaffoor, S. A. ; Shukla, A. K. (2009) Lead-acid batteries for partial-state-of-charge applications Journal of Power Sources, 191 (1). pp. 149-153. ISSN 0378-7753

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.jpowsour.2008.12.081

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:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Active-material Utilization; Carbon-black; Fumed-silica; Partial-state-of-charge; Paste-density; Plate-porosity
ID Code:81781
Deposited On:07 Feb 2012 12:16
Last Modified:07 Feb 2012 12:16

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