Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 34, Pages 19362-19369Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b05509
Keywords
Sb2S3; rod; anode; sodium-ion battery; electrochemistry
Funding
- National Natural Science Foundation of China [21473258]
- Program for the New Century Excellent Talents in University [NCET-11-0513]
- Distinguished Young Scientists of Hunan Province [13JJ1004]
- Hunan Provincial Innovation Foundation for Postgraduate [CX2015B039]
- Natural Science Foundation of Hunan [2014GK2016]
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
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Due to the high theoretical capacity of 946 mAh g(-1) Sb2S3 can be employed as promising electrode material for sodium-ion batteries (SIBs). Herein, the sodium storage behaviors of one-dimensional (1D) Sb2S3-based materials (Sb2S3 and Sb2S3@C rods) are successfully studied for the first time, displaying good cyclability and rate capability owing to their unique morphology and structure. Specifically, the Sb2S3@C rods electrode presents greatly enhanced electrochemical properties, resulting from the introduction of thin carbon layers which can effectively alleviate the strain caused by the large volume change and simultaneously improve the conductivity of electrode during cycling. At a current density of 100 mA g(-1), it delivers a high capacity of 699.1 mAh g(-1) after 100 cycles, which corresponds to 95.7% of the initial reversible capacity. Even at a high current density of 3200 mA g(-1), the capacity can still reach 429 mAh g(-1). This achievement may be a significant exploration for develpoing novel ID Sb-based materials or metal sulfide SIBs anodes.
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