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Sb1–xSex Nanoparticles as Durable and Stable Anode Materials for Sodium-Ion Batteries.
- Source :
- ACS Applied Nano Materials; 10/28/2022, Vol. 5 Issue 10, p15692-15699, 8p
- Publication Year :
- 2022
-
Abstract
- Antimony-based electrodes have earned a place among anodes for sodium-ion batteries (SIBs) on account of their high specific capacity and appropriate reaction potential. However, significant volume changes during charge/discharge cycles directly lead to poor cycling ability, prohibiting their further practical application. Doping is recognized as a valid approach to tuning the electrochemical properties of electrodes for better electrochemical performances. In this work, Se-doped Sb solid solution (Sb<subscript>1-x</subscript>Se<subscript>x</subscript>) nanoparticles are reported as a variety of anode materials for SIBs via a straightforward solvothermal method. The nanoparticles are uniformly distributed with a small size of about 20 nm. The diffusion properties of Na<superscript>+</superscript> are studied by the galvanostatic intermittent titration technique (GITT), and the coefficient is acquired by calculation to be 1.8 × 10<superscript>–12</superscript> cm<superscript>2</superscript> s<superscript>–1</superscript>. The electrochemical measurement results show that the nanoparticle electrode yields reversible capacities of 514, 500, 464, and 313 mAh g<superscript>–1</superscript> at 0.5, 1, 2, and 5 A g<superscript>–1</superscript>, respectively. An initial charging specific capacity of 556.3 mAh g<superscript>–1</superscript> could be stable for 100 cycles at 100 mA g<superscript>–1</superscript>, retaining up to 96.8% of battery capacity. It is believed that a solution is provided based on our findings to polish the electrochemical characteristics applied in SIBs by means of doping. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 25740970
- Volume :
- 5
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- ACS Applied Nano Materials
- Publication Type :
- Academic Journal
- Accession number :
- 160067387
- Full Text :
- https://doi.org/10.1021/acsanm.2c03762