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ACS Appl Mater Interfaces. 2015 Jan 28;7(3):1401-5. doi: 10.1021/am508528p. Epub 2015 Jan 12.

Surface modification of sulfur electrodes by chemically anchored cross-linked polymer coating for lithium-sulfur batteries.

Author information

1
Organic Material Synthesis Lab. Department of Chemistry, Incheon National University , 119 Academy-ro, Songdo-dong, Yeonsu-gu, Incheon 406-772, Korea.

Abstract

Lithium-sulfur batteries suffer from severe self-discharge due to polysulfide dissolution into electrolytes. In this work, a chemically anchored polymer-coated (CAPC) sulfur electrode was prepared, through chemical bonding by coordinated Cu ions and cross-linking, to improve cyclability for Li/S batteries. This electrode retained specific capacities greater than 665 mAh g(-1) at high current density of 3.35 A g(-1) (2C rate) after 100 cycles with an excellent Coulombic efficiency of 100%.

KEYWORDS:

Cu-anchoring; chemical bonding; lithium−sulfur batteries; polymer coating; polysulfide dissolution; sulfur electrode

PMID:
25569854
DOI:
10.1021/am508528p

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