Show simple item record

AuthorKim, Joo-Seong
AuthorYoo, Dong-Joo
AuthorMin, Jaeyun
AuthorShakoor, Rana A.
AuthorKahraman, Ramazan
AuthorChoi, Jang Wook
Available date2015-11-05T07:03:40Z
Publication Date2015
Publication NameChemNanoMat
ResourceWiley Online Library
CitationJ.-S. Kim, D.-J. Yoo, J. Min, R. A. Shakoor, R. Kahraman, J. W. Choi, ChemNanoMat. (2015) 1:4, 240-245
ISSN2199-692X
URIhttp://dx.doi.org/10.1002/cnma.201500055
URIhttp://hdl.handle.net/10576/3642
AbstractDespite the attractive theoretical capacity of sulfur over 1600 mA h g−1, lithium–sulfur (Li–S) batteries suffer from insufficient cycle lives mainly due to fatal polysulfide dissolution. This chronic drawback becomes amplified at high areal capacities, especially close to commercial levels (i.e., >3 mA h cm−2). Here, we introduce an integrated approach of adopting poreless urea–urethane copolymer (spandex) separator and cesium nitrate (CsNO3) electrolyte additive. The spandex separator prevents soluble polysulfides from reaching Li metal anode and also suppresses Li dendrite growth via its intrinsic wet adhesion. When combined with a sulfur–carbon composite cathode, the cell based on the spandex separator and the electrolyte additive delivers a high areal capacity of 4 mA h cm−2 with decent cycling performance, such as 79.2 % capacity retention after 200 cycles with respect to the capacity in the second cycle.
SponsorNational Research Foundation of Korea (NRF)
SponsorKorea government (MEST). Grant Number: NRF-2012-R1A2A1A01011970
SponsorQatar National Research Fund
Languageen
PublisherWILEY-VCH Verlag
Subjectlithium dendrites
lithium-sulfur batteries
polysulfides
shuttling
spandex separators
TitlePoreless Separator and Electrolyte Additive for Lithium-Sulfur Batteries with High Areal Energy Densities
TypeArticle
Issue Number4
Volume Number1
dc.accessType Abstract Only


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record