Assembly and performance of hybrid-VRLA cells and batteries

Martha, SK and Hariprakash, B and Gaffoor, SA and Ambalavanan, S and Shukla, AK (2005) Assembly and performance of hybrid-VRLA cells and batteries. In: Journal of Power Sources, 144 (2). pp. 560-567.

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Abstract

Several commercial-grade hybrid-VRLA and AGM-VRLA cells and batteries have been assembled and tested under varying charge-discharge rates in a temperature range between 50 and -40 degrees C. Impedance studies on hybrid-VRLA and AGM-VRLA cells have been conducted to reflect on their resistive and capacitive values. A linear relationship is found to exist between logarithmic state-of-charge values and ohmic impedance of batteries. In general, hybrid-VRLA cells and batteries perform better than their AGM-VRLA counterpart. A field-performance study conducted on AGM-VRLA and hybrid-VRLA batteries for solar-lighting application also suggests the latter to be superior.

Item Type:	Journal Article
Publication:	Journal of Power Sources
Publisher:	Elsevier Science BV
Additional Information:	Copyright for this article belongs to Elsevier.
Keywords:	VRLA batteries;Absorbent-glass-mat (AGM);Gelled electrolyte;Colloidal silica;Hybrid;Oxygen recombination
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	26 Jul 2005
Last Modified:	19 Sep 2010 04:19
URI:	http://eprints.iisc.ac.in/id/eprint/3398

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