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Title: The first Fe-based Na+-ion cathode with two distinct types of polyanions: Fe3P5SiO19

We report the synthesis, structure, and electrochemistry of the first Na+-ion cathode with two distinct types of polyanions: Fe3P5SiO19. The Fe-based cathode has a reversible capacity of ca. 70 mAh g-1; ca. 1.7 Na+ ions per formula can be inserted/extracted at an average voltage of 2.5 V versus Na+/Na.
Authors:
 [1] ;  [2] ;  [1]
  1. Univ. of Texas at Austin, Austin, TX (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Science Division
Publication Date:
OSTI Identifier:
1261442
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
ChemComm
Additional Journal Information:
Journal Volume: 51; Journal Issue: 52; Journal ID: ISSN 1359-7345
Publisher:
Royal Society of Chemistry
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source
Sponsoring Org:
USDOE: NSF
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY