Rational Combination of an Alabandite MnS Laminated Pyrrhotite Fe₁₋ₓS Nanocomposite as a Superior Anode Material for High Performance Sodium-Ion Battery
- Authors
- Veerasubramani, Ganesh Kumar; Park, Myung-Soo; Choi, Jin-Yi; Lee, Yun-Sung; Kim, Sang Jae; Kim, Dong-Won
- Issue Date
- Mar-2019
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Pyrrhotite Fe1-xS; Alabandite MnS; Composite anode; Sodium-ion battery; Energy storage
- Citation
- ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v.7, no.6, pp.5921 - 5930
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS SUSTAINABLE CHEMISTRY & ENGINEERING
- Volume
- 7
- Number
- 6
- Start Page
- 5921
- End Page
- 5930
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/32895
- DOI
- 10.1021/acssuschemeng.8b05904
- ISSN
- 2168-0485
- Abstract
- Conversion-based transition metal sulfide compounds have been considered as a promising anode material for sodium-ion batteries (SIBs). The major obstacle of these conversion-type anode materials is a large volume change in the course of sodium-ion conversion, which deteriorates their structural stability. Herein, we report a rational combination of pyrrhotite Fe1-xS with alabandite MnS as an anode material with the subsided structural degradation and improved storage ability for SIB. Impressively, the Fe1-xS/MnS composite electrode initially delivered a discharge capacity of 602 mAh g(-1) at 100 mA g(-1) with good cycling stability and excellent rate capability, which reveals its enhanced sodium-ion storage capacity as compared to its pristine electrodes (Fe1-xS, MnS). Electrochemical impedance spectroscopy and cyclic voltammetry analyses demonstrate the enhanced rate performance and improved cycling stability of the Fe1-xS/MnS composite electrode as well as better pseudocapacitive contribution. The cooperative effect of the Fe1-xS/MnS composite anode makes it as a promising anode material for SIBs.
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