In situ X-ray absorption spectroscopy characterization of V2O5 xerogel cathodes upon lithium intercalation

Marco Giorgetti, Stefano Passerini, William H. Smyrl, Sanjeev Mukerjee, X. Q. Yang, James McBreen

Research output: Contribution to journalArticlepeer-review

103 Scopus citations

Abstract

Vanadium pentoxide materials prepared through sol-gel processes act as excellent intercalation hosts for lithium as well as for polyvalent cations. Previous ex situ X-ray absorption spectroscopy and X-ray diffraction characterizations have shown that the electrochemical performance of vanadium pentoxide xerogels depends inversely on the long-range order of the V2O5-layered structure. Recently, new ways to prevent the self-organization of the dry materials, which takes place upon water removal from the starting hydrogel, have been introduced. In the present paper we report on the in situ X-ray absorption spectroscopy characterization of a spray-coated V2O5 (freeze-dried) xerogel cathode upon lithium intercalation.

Original languageEnglish (US)
Pages (from-to)2387-2392
Number of pages6
JournalJournal of the Electrochemical Society
Volume146
Issue number7
DOIs
StatePublished - Jul 1999

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