Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/140754
Title: Construction of a stable lithium sulfide membrane to greatly confine polysulfides for high performance lithium – sulfur batteries
Authors: Wu, Chao
Guo, Chunxian
Wu, JingGao
Ai, Wei
Yu, Ting
Li, Chang Ming
Keywords: Science::Physics
Issue Date: 2018
Source: Wu, C., Guo, C., Wu, J., Ai, W., Yu, T., & Li, C. M. (2018). Construction of a stable lithium sulfide membrane to greatly confine polysulfides for high performance lithium – sulfur batteries. Journal of Materials Chemistry A, 6(18), 8655-8661. doi:10.1039/c8ta00098k
Journal: Journal of Materials Chemistry A
Abstract: A stable lithium sulfide membrane is constructed in situ to wrap the mixed sulfur/C material surface of a lithium–sulfur battery (LSB) by delicately tuning the galvanostatic discharge current. The membrane offers unique and selective channels which allow only ions/small sulfides to pass through and confine polysulfide transport, restricting the shuttle effect, and thus providing a large capacity of 685 mA h g−1 at 1C and a long-lasting cycling stability (0.03% capacity decay per cycle). This LSB, which is much superior to the same sulfur-loaded battery without the membrane (0.26% capacity decay per cycle over 207 cycles and 213 mA h g−1 at 1C), is the best among all reported plain carbonaceous host material-based LSBs. The mechanism responsible for such dramatically improved performance is discussed in detail. This work not only offers a facile approach to greatly improve the capacity and stability of LSBs for practical applications but also offers new scientific insights into LSB design.
URI: https://hdl.handle.net/10356/140754
ISSN: 2050-7488
DOI: 10.1039/c8ta00098k
Rights: © 2018 The Royal Society of Chemistry. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.