Synthesis of a Sodium-Ion Cathode Material Na<sub>3</sub>Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>F with the Help of Fluorine Element
The development of cathode materials has always been one of the most crucial areas of research in the field of sodium-ion batteries. Sulfate-based polyanionic materials, known for their high working voltage characteristics, have received widespread attention. In this work, a fluoro-sulfate sodium-ion battery cathode material, Na<sub>3</sub>Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>F modified with carbon nanotubes, was developed using a low-temperature solid-state annealing method. This Na<sub>3</sub>Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>F cathode exhibits an exceptionally high voltage of 3.77 V, excellent discharge capacity (102 mAh/g at 0.1C), and good rate capability. This material broadens the research directions for cathode materials and holds promise as a foundation for the further development of high-performance sodium-ion batteries.
Authors
- Kejia Xiang
- Zhongtai Zhang
- Zunqiu Xiao
- Ye Tao (ORCID: https://orcid.org/0000-0002-6846-5109)
- Zilong Tang (ORCID: https://orcid.org/0000-0003-0706-0260)
- Shitong Wang (ORCID: https://orcid.org/0000-0003-4341-3510)
- Wei Wei (ORCID: https://orcid.org/0009-0007-6931-2028)
- Huaying Wang
Institutions
- State Key Laboratory of New Ceramics and Fine Processing
- Massachusetts Institute of Technology (US)
- Tsinghua University (CN)
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2024-09-09
- DOI
- https://doi.org/10.1021/acsami.4c09115
- Citations
- 10
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 2.09
Funders
- National Natural Science Foundation of China