A new class of lithium and sodium rechargeable batteries based on selenium and selenium-sulfur as a positive electrode

Ali Abouimrane, Damien Dambournet, Karena W. Chapman, Peter J. Chupas, Wei Weng, Khalil Amine

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297 Citations (Scopus)

Abstract

A new class of selenium and selenium-sulfur (Se xS y)-based cathode materials for room temperature lithium and sodium batteries is reported. The structural mechanisms for Li/Na insertion in these electrodes were investigated using pair distribution function (PDF) analysis. Not only does the Se electrode show promising electrochemical performance with both Li and Na anodes, but the additional potential for mixed Se xS y systems allows for tunable electrodes, combining the high capacities of S-rich systems with the high electrical conductivity of the d-electron containing Se. Unlike the widely studied Li/S system, both Se and Se xS y can be cycled to high voltages (up to 4.6 V) without failure. Their high densities and voltage output offer greater volumetric energy densities than S-based batteries, opening possibilities for new energy storage systems that can enable electric vehicles and smart grids.

Original languageEnglish
Pages (from-to)4505-4508
Number of pages4
JournalJournal of the American Chemical Society
Volume134
Issue number10
DOIs
Publication statusPublished - 14 Mar 2012
Externally publishedYes

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ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

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