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Carbon Nanofibers with Embedded Sb 2 Se 3 Nanoparticles as Highly Reversible Anodes for Na‐Ion Batteries
Author(s) -
Xia Lishuang,
Yang Zhendong,
Tang Bin,
Li Feng,
Wei Jinping,
Zhou Zhen
Publication year - 2021
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202006016
Subject(s) - materials science , anode , electrospinning , carbon nanofiber , nanofiber , intercalation (chemistry) , chemical engineering , nanoparticle , carbon fibers , nanostructure , nanotechnology , electrode , composite material , inorganic chemistry , carbon nanotube , composite number , chemistry , engineering , polymer
As a promising candidate for large‐scale energy storage, sodium‐ion batteries (SIBs) have superiority due to their low cost and abundance as a resource. Herein, homogeneous Sb 2 Se 3 nanocrystallites embedded in carbon nanofibers (Sb 2 Se 3 /CNFs) by electrospinning and selenization treatment are prepared. The obtained Sb 2 Se 3 /CNFs exhibit good cycling performance, high reversible capacity, and excellent rate capability as anodes for SIBs. The outstanding performances are attributed to a combination of Na + intercalation, conversion reaction, and alloying with Sb 2 Se 3 , disclosed through in‐situ X‐ray diffraction. Meanwhile, unique nanostructures provide large contact surface and tolerant accommodation to volume expansion which bring high reversibility and long cycle durability. This distinctive material shows prospective applications of SIBs especially under high current density.