Double-shelled hollow Na2FePO4F/C spheres cathode for high-performance sodium-ion batteries

Double-shelled hollow Na2FePO4F/C spheres cathode for high-performance sodium-ion batteries In this study, the hierarchical hollow Na2FePO4F/C microspheres as high-performance cathode for sodium-ion batteries (SIBs) are developed by adjusting the reaction time of solvothermal synthesis. With prolonging solvothermal time, the structure of the microspheres gradually changes from urchin-like hollow structure to acanthosphere-like hollow structure and finally to double-shelled hollow structure. Dissolution–recrystallization mechanism is proposed to better understand the formation of the double-shelled hollow microspheres of Na2FePO4F/C. When evaluated as cathode materials for SIBs, the double-shelled hollow Na2FePO4F/C sample delivers a discharge capacity as high as 120.1 mAh g−1 at 0.1 C and maintains the capacity retention of 92.5% at 1 C after 200 cycles. For the purpose of explaining the improved electrochemical performance of the double-shelled hollow Na2FePO4F/C materials, all the electrodes are analyzed with cyclic voltammetry and electrochemical impedance spectroscopy. It is found that the excellent electrochemical performances are mainly attributed to its unique structure, which can enhance electronic and ionic conductivity during repeated Na+ insertion/extraction processes. Journal of Materials Science Springer Journals

Double-shelled hollow Na2FePO4F/C spheres cathode for high-performance sodium-ion batteries

Loading next page...
Springer US
Copyright © 2017 by Springer Science+Business Media, LLC
Materials Science; Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics
Publisher site
See Article on Publisher Site


You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial