articleJournal of the American Chemical SocietyJan 23, 2015Closed access

Rhombohedral Prussian White as Cathode for Rechargeable Sodium-Ion Batteries

LWLong WangJSJie SongRQRuimin QiaoLAL. Andrew WrayMHMuhammed Hossain

The University of Texas at Austin · Lawrence Berkeley National Laboratory · +2 more institutions

PubMed
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Abstract

A novel air-stable sodium iron hexacyanoferrate (R-Na1.92Fe[Fe(CN)6]) with rhombohedral structure is demonstrated to be a scalable, low-cost cathode material for sodium-ion batteries exhibiting high capacity, long cycle life, and good rate capability. The cycling mechanism of the iron redox is clarified and understood through synchrotron-based soft X-ray absorption spectroscopy, which also reveals the correlation between the physical properties and the cell performance of this novel material. More importantly, successful preparation of a dehydrated iron hexacyanoferrate with high sodium-ion concentration enables the fabrication of a discharged sodium-ion battery with a non-sodium metal anode, and the…

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15

Topics & keywords

Topics
Keywords
  • Prussian blue
  • Chemistry
  • Anode
  • Sodium
  • Battery (electricity)
  • Cathode
  • Lithium (medication)
  • Ion
UN Sustainable Development Goals
  • Industry, innovation and infrastructure
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