CaltechAUTHORS
  A Caltech Library Service

Sulfur infiltrated mesoporous graphene–silica composite as a polysulfide retaining cathode material for lithium–sulfur batteries

Kim, Kyoung Hwan and Jun, Young-Si and Gerbec, Jeffrey A. and See, Kimberly A. and Stucky, Galen D. and Jung, Hee-Tae (2014) Sulfur infiltrated mesoporous graphene–silica composite as a polysulfide retaining cathode material for lithium–sulfur batteries. Carbon, 69 . pp. 543-551. ISSN 0008-6223. https://resolver.caltech.edu/CaltechAUTHORS:20180607-120125404

[img] PDF - Supplemental Material
See Usage Policy.

921Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20180607-120125404

Abstract

The lithium–sulfur (Li–S) system is an attractive candidate to replace the current state-of-the-art lithium-ion battery due to the promising theoretical charge capacity of 1675 mA h/g and energy density of 2500 Wh/kg; however, the dissolution of intermediate polysulfides into the organic liquid electrolyte during cycling hinders its practical realization. We report the synthesis of mesoporous graphene–silica composite (m-GS) as a supporting material of sulfur for Li–S batteries. The ordered porous silica structure was synthesized parallel to functionalized graphene sheets (FGSs) through the ternary cooperative assembly of the graphene, silica, and block copolymer precursors. The well-defined, unique mesoporous structure integrates the electronic conductivity of graphene and the dual functions of silica as a structure building block and in situ polysulfide ab-/ad-sorbing agent to give a Li–S battery that has both good retention ability of polysulfides and good rate capability.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.carbon.2013.12.065DOIArticle
ORCID:
AuthorORCID
See, Kimberly A.0000-0002-0133-9693
Additional Information:© 2013 Elsevier. Received 21 October 2013, Accepted 21 December 2013, Available online 2 January 2014. This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Science, ICT and future Planning, Korea (MSIP, NRF-2012R1A2A1A01003537), and a grant funded by Center for Advanced Soft Electronics under the Global Frontier Research Program of the Ministry of Science, ICT and future Planning, Korea (MSIP, NRF-2012M3A6A5055744). The MRL Shared Experimental Facilities are supported by the MRSEC Program of the NSF under Award No. DMR 1121053; a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org). Fellowship support to KAS from the ConvEne IGERT Program of the National Science Foundation (DGE 0801627) is gratefully acknowledged.
Funders:
Funding AgencyGrant Number
National Research Foundation of KoreaNRF-2012R1A2A1A01003537
Ministry of Science, ICT and Future Planning (Korea)UNSPECIFIED
National Research Foundation of KoreaNRF-2012M3A6A5055744
NSFDMR-1121053
NSF Graduate Research FellowshipDGE-0801627
Record Number:CaltechAUTHORS:20180607-120125404
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180607-120125404
Official Citation:Kyoung Hwan Kim, Young-Si Jun, Jeffrey A. Gerbec, Kimberly A. See, Galen D. Stucky, Hee-Tae Jung, Sulfur infiltrated mesoporous graphene–silica composite as a polysulfide retaining cathode material for lithium–sulfur batteries, Carbon, Volume 69, 2014, Pages 543-551, ISSN 0008-6223, https://doi.org/10.1016/j.carbon.2013.12.065. (http://www.sciencedirect.com/science/article/pii/S0008622313012207)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86886
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:07 Jun 2018 19:43
Last Modified:24 Feb 2020 10:30

Repository Staff Only: item control page