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An advanced MoS2 /carbon anode for high-performance sodium-ion batteries.
Small 2015; 11(4):473-81S

Abstract

Molybdenum disulfide (MoS2) is a promising anode for high performance sodium-ion batteries due to high specific capacity, abundance, and low cost. However, poor cycling stability, low rate capability and unclear electrochemical reaction mechanism are the main challenges for MoS2 anode in Na-ion batteries. In this study, molybdenum disulfide/carbon (MoS2 /C) nanospheres are fabricated and used for Na-ion battery anodes. MoS2 /C nanospheres deliver a reversible capacity of 520 mAh g(-1) at 0.1 C and maintain at 400 mAh g(-1) for 300 cycles at a high current density of 1 C, demonstrating the best cycling performance of MoS2 for Na-ion batteries to date. The high capacity is attributed to the short ion and electron diffusion pathway, which enables fast charge transfer and low concentration polarization. The stable cycling performance and high coulombic efficiency (∼100%) of MoS2 /C nanospheres are ascribed to (1) highly reversible conversion reaction of MoS2 during sodiation/desodiation as evidenced by ex-situ X-ray diffraction (XRD) and (2) the formation of a stable solid electrolyte interface (SEI) layer in fluoroethylene carbonate (FEC) based electrolyte as demonstrated by fourier transform infrared spectroscopy (FTIR) measurements.

Authors+Show Affiliations

Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, 20742, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

25256131

Citation

Wang, Jingjing, et al. "An Advanced MoS2 /carbon Anode for High-performance Sodium-ion Batteries." Small (Weinheim an Der Bergstrasse, Germany), vol. 11, no. 4, 2015, pp. 473-81.
Wang J, Luo C, Gao T, et al. An advanced MoS2 /carbon anode for high-performance sodium-ion batteries. Small. 2015;11(4):473-81.
Wang, J., Luo, C., Gao, T., Langrock, A., Mignerey, A. C., & Wang, C. (2015). An advanced MoS2 /carbon anode for high-performance sodium-ion batteries. Small (Weinheim an Der Bergstrasse, Germany), 11(4), pp. 473-81. doi:10.1002/smll.201401521.
Wang J, et al. An Advanced MoS2 /carbon Anode for High-performance Sodium-ion Batteries. Small. 2015 Jan 27;11(4):473-81. PubMed PMID: 25256131.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An advanced MoS2 /carbon anode for high-performance sodium-ion batteries. AU - Wang,Jingjing, AU - Luo,Chao, AU - Gao,Tao, AU - Langrock,Alex, AU - Mignerey,Alice C, AU - Wang,Chunsheng, Y1 - 2014/09/25/ PY - 2014/05/29/received PY - 2014/08/08/revised PY - 2014/9/27/entrez PY - 2014/9/27/pubmed PY - 2014/9/27/medline KW - anodes KW - molybdenum disulfide KW - nanospheres KW - sodium-ion batteries KW - solid electrolyte interface layers SP - 473 EP - 81 JF - Small (Weinheim an der Bergstrasse, Germany) JO - Small VL - 11 IS - 4 N2 - Molybdenum disulfide (MoS2) is a promising anode for high performance sodium-ion batteries due to high specific capacity, abundance, and low cost. However, poor cycling stability, low rate capability and unclear electrochemical reaction mechanism are the main challenges for MoS2 anode in Na-ion batteries. In this study, molybdenum disulfide/carbon (MoS2 /C) nanospheres are fabricated and used for Na-ion battery anodes. MoS2 /C nanospheres deliver a reversible capacity of 520 mAh g(-1) at 0.1 C and maintain at 400 mAh g(-1) for 300 cycles at a high current density of 1 C, demonstrating the best cycling performance of MoS2 for Na-ion batteries to date. The high capacity is attributed to the short ion and electron diffusion pathway, which enables fast charge transfer and low concentration polarization. The stable cycling performance and high coulombic efficiency (∼100%) of MoS2 /C nanospheres are ascribed to (1) highly reversible conversion reaction of MoS2 during sodiation/desodiation as evidenced by ex-situ X-ray diffraction (XRD) and (2) the formation of a stable solid electrolyte interface (SEI) layer in fluoroethylene carbonate (FEC) based electrolyte as demonstrated by fourier transform infrared spectroscopy (FTIR) measurements. SN - 1613-6829 UR - https://www.unboundmedicine.com/medline/citation/25256131/An_advanced_MoS2_/carbon_anode_for_high_performance_sodium_ion_batteries_ L2 - https://doi.org/10.1002/smll.201401521 DB - PRIME DP - Unbound Medicine ER -