An Alternative Approach to Enhance the Performance of High Sulfur-Loading Electrodes for Li-S Batteries

Hee Min Kim; Ho Hyun Sun; Ilias Belharouak; Arumugam Manthiram; Yang Kook Sun

doi:10.1021/acsenergylett.6b00104

An Alternative Approach to Enhance the Performance of High Sulfur-Loading Electrodes for Li-S Batteries

Hee Min Kim
, Ho Hyun Sun
, Ilias Belharouak
, Arumugam Manthiram
, Yang Kook Sun

Research output: Contribution to journal › Article › peer-review

78 Scopus citations

Abstract

Due to lithium-sulfur battery's high theoretical capacity and energy density, Li-S has been considered as a promising candidate for next-generation Li batteries. Despite this, Li-S batteries suffer from poor electrical conductivity and the shuttle effect, which result in loss of active material and active material loading limitation, thus hindering the practical application of Li-S. This Letter introduces the modified high sulfur-loading electrode (MHSE) with a loading of 10 mgcm^-2 which directly addresses these two drawbacks and employs a simple production process suitable for mass production through the use of elemental sulfur. The MHSE consists of three distinct components which provide additional conductivity, mechanical support, and polysulfide adsorption ability on each level to enhance electrochemical performance. The electrode manifested an initial discharge capacity of 1332 mAhg^-1 with a 91% cycle retention at the end of 50 cycles and cycled with stability from 0.1C to 2C during rate capability testing.

Original language	English
Pages (from-to)	136-141
Number of pages	6
Journal	ACS Energy Letters
Volume	1
Issue number	1
DOIs	https://doi.org/10.1021/acsenergylett.6b00104
State	Published - Jul 8 2016
Externally published	Yes

Funding

This work was supported by the Global Frontier R&D Program (2013M3A6B1078875) on Center for Hybrid Interface Materials (HIM) funded by the Ministry of Science, ICT & Future Planning and the Human Resources Development program (20154010200840) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy. The work at the University of Texas at Austin was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy under Contract DE-EE007218. †Department of Energy Engineering, Hanyang University, Seoul 04763, South Korea ‡Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States §Qatar Environment and Energy Research Institute, HBKU, Qatar Foundation, P.O. Box 5825, Doha, Qatar

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10.1021/acsenergylett.6b00104

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title = "An Alternative Approach to Enhance the Performance of High Sulfur-Loading Electrodes for Li-S Batteries",

abstract = "Due to lithium-sulfur battery's high theoretical capacity and energy density, Li-S has been considered as a promising candidate for next-generation Li batteries. Despite this, Li-S batteries suffer from poor electrical conductivity and the shuttle effect, which result in loss of active material and active material loading limitation, thus hindering the practical application of Li-S. This Letter introduces the modified high sulfur-loading electrode (MHSE) with a loading of 10 mgcm-2 which directly addresses these two drawbacks and employs a simple production process suitable for mass production through the use of elemental sulfur. The MHSE consists of three distinct components which provide additional conductivity, mechanical support, and polysulfide adsorption ability on each level to enhance electrochemical performance. The electrode manifested an initial discharge capacity of 1332 mAhg-1 with a 91\% cycle retention at the end of 50 cycles and cycled with stability from 0.1C to 2C during rate capability testing.",

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T1 - An Alternative Approach to Enhance the Performance of High Sulfur-Loading Electrodes for Li-S Batteries

AU - Kim, Hee Min

AU - Sun, Ho Hyun

AU - Belharouak, Ilias

AU - Manthiram, Arumugam

AU - Sun, Yang Kook

PY - 2016/7/8

Y1 - 2016/7/8

N2 - Due to lithium-sulfur battery's high theoretical capacity and energy density, Li-S has been considered as a promising candidate for next-generation Li batteries. Despite this, Li-S batteries suffer from poor electrical conductivity and the shuttle effect, which result in loss of active material and active material loading limitation, thus hindering the practical application of Li-S. This Letter introduces the modified high sulfur-loading electrode (MHSE) with a loading of 10 mgcm-2 which directly addresses these two drawbacks and employs a simple production process suitable for mass production through the use of elemental sulfur. The MHSE consists of three distinct components which provide additional conductivity, mechanical support, and polysulfide adsorption ability on each level to enhance electrochemical performance. The electrode manifested an initial discharge capacity of 1332 mAhg-1 with a 91% cycle retention at the end of 50 cycles and cycled with stability from 0.1C to 2C during rate capability testing.

AB - Due to lithium-sulfur battery's high theoretical capacity and energy density, Li-S has been considered as a promising candidate for next-generation Li batteries. Despite this, Li-S batteries suffer from poor electrical conductivity and the shuttle effect, which result in loss of active material and active material loading limitation, thus hindering the practical application of Li-S. This Letter introduces the modified high sulfur-loading electrode (MHSE) with a loading of 10 mgcm-2 which directly addresses these two drawbacks and employs a simple production process suitable for mass production through the use of elemental sulfur. The MHSE consists of three distinct components which provide additional conductivity, mechanical support, and polysulfide adsorption ability on each level to enhance electrochemical performance. The electrode manifested an initial discharge capacity of 1332 mAhg-1 with a 91% cycle retention at the end of 50 cycles and cycled with stability from 0.1C to 2C during rate capability testing.

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An Alternative Approach to Enhance the Performance of High Sulfur-Loading Electrodes for Li-S Batteries

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