Charge Localization in the Lithium Iron Phosphate Li3Fe2(PO4)3 at High Voltages in Lithium-Ion Batteries.

نویسندگان

  • Reza Younesi
  • Ane Christiansen
  • Simon Loftager
  • Juan Maria García-Lastra
  • Tejs Vegge
  • Poul Norby
  • Peter Holtappels
چکیده

Possible changes in the oxidation state of the oxygen ion in the lithium iron phosphate Li3Fe2(PO4)3 at high voltages in lithium-ion (Li-ion) batteries are studied using experimental and computational analysis. Results obtained from synchrotron-based hard X-ray photoelectron spectroscopy and density functional theory (DFT) show that the oxidation state of O(2-) ions is altered to higher oxidation states (O(δ-), δ<2) upon charging Li3Fe2(PO4)3 to 4.7 V.

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عنوان ژورنال:
  • ChemSusChem

دوره 8 19  شماره 

صفحات  -

تاریخ انتشار 2015