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A Novel High Capacity, Environmental Benign Energy Storage System: Super-iron Boride Battery

Published online by Cambridge University Press:  01 February 2011

Xingwen Yu  and
Stuart Licht
Xingwen Yu
Affiliation:
xingwenyu@yahoo.com, The University of British Columbia, Chemical and Biological Engineering, 2360 East Mall, Vancouver, V6T 1Z3, Canada, +1 604-7288895
Stuart Licht
Affiliation:
lichts@umb.edu, University of Massachusetts, Department of Chemistry, 100 Morrissey Blvd, Boston, MA, 02125, United States
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Abstract

High electrochemical capacity of alkaline boride anodes is presented. The alkaline anodes based on transition metal borides can deliver exceptionally high discharge capacity. Over 3800 mAh/g discharge capacity is obtained for the commercial available vanadium diboride (VB2), much higher than the theoretical capacity of commonly used zinc metal (820 mAh/g) alkaline anode. Coupling with the super-iron cathodes, the novel Fe6+/B2- battery chemistry generates a matched electrochemical potential to the pervasive, conventional MnO2-Zn battery, but sustains a much higher electrochemical capacity.

Keywords

energy-storageenergetic materialenvironmentally benign
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1041: Symposium R – Life-Cycle Analysis for New Energy Conversion and Storage Systems , 2007 , 1041-R04-01
Copyright
Copyright © Materials Research Society 2008

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