Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/83885
Title: Array of nanosheets render ultrafast and high-capacity Na-ion storage by tunable pseudocapacitance
Authors: Chao, Dongliang
Zhu, Changrong
Yang, Peihua
Xia, Xinhui
Liu, Jilei
Wang, Jin
Fan, Xiaofeng
Savilov, Serguei V.
Lin, Jianyi
Fan, Hong Jin
Shen, Ze Xiang
Keywords: Reaction Kinetics and Dynamics
Batteries
Issue Date: 2016
Source: Chao, D., Zhu, C., Yang, P., Xia, X., Liu, J., Wang, J., et al. (2016). Array of nanosheets render ultrafast and high-capacity Na-ion storage by tunable pseudocapacitance. Nature Communications, 7, 12122-.
Series/Report no.: Nature Communications
Abstract: Sodium-ion batteries are a potentially low-cost and safe alternative to the prevailing lithium-ion battery technology. However, it is a great challenge to achieve fast charging and high power density for most sodium-ion electrodes because of the sluggish sodiation kinetics. Here we demonstrate a high-capacity and high-rate sodium-ion anode based on ultrathin layered tin(II) sulfide nanostructures, in which a maximized extrinsic pseudocapacitance contribution is identified and verified by kinetics analysis. The graphene foam supported tin(II) sulfide nanoarray anode delivers a high reversible capacity of ∼1,100 mAh g−1 at 30 mA g−1 and ∼420 mAh g−1 at 30 A g−1, which even outperforms its lithium-ion storage performance. The surface-dominated redox reaction rendered by our tailored ultrathin tin(II) sulfide nanostructures may also work in other layered materials for high-performance sodium-ion storage.
URI: https://hdl.handle.net/10356/83885
http://hdl.handle.net/10220/42866
ISSN: 2041-1723
DOI: 10.1038/ncomms12122
Rights: © 2016 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Fulltext Permission: open
Fulltext Availability: With Fulltext
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