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Chem Commun (Camb). 2004 Mar 21;(6):628-9. doi: 10.1039/b400251b. Epub 2004 Feb 24.

Rechargeable Fe(III/VI) super-iron cathodes.

Chemical communications (Cambridge, England)

Stuart Licht, Ran Tel-Vered

Affiliations

  1. Department of Chemistry, University of Massachusetts, Boston, USA. [email protected]

PMID: 15010752 DOI: 10.1039/b400251b

Abstract

This study addresses a fundamental challenge posed by hexavalent iron electrochemical irreversibility, which had slowed practical development of reversible Fe(VI) cathodes; nanolayers circumvent fundamental passivation challenges, and are electrodeposited from solution phase FeO(4)(2-), forming 601 mAh g(-1) Li, and 485 mAh g(-1) Na, Fe(III/VI) alkaline cathodes, the latter exhibiting 100-200 storage cycles at 80% depth of discharge, providing pathways towards metal hydride batteries with twice the cathode capacity.

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