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Title: Lithium–Sulfur Batteries with the Lowest Self-Discharge and the Longest Shelf life

Abstract

Lithium-sulfur (Li-S) batteries are promising as a nextgeneration energy-storage device because their energy density is higher than that of current Li-ion technology. However, in comparison to Li-ion batteries, Li-S batteries encounter much faster self-discharge and shorter shelf life. Unfortunately, the lack of literature against the realities of severe self-discharge makes developing a practically viable Li-S technology a daunting challenge. Here, we present low self-discharge (LSD) Li-S batteries that have the lowest self-discharge constant of 0.0022 per day and the longest shelf life of one year. The superior electrochemical stability of the LSD Li-S batteries is reflected in a low capacity-fade rate of only 0.14% per day over the extended experimental time period. In addition, an analysis of the Li-S articles investigating the self-discharge effect in the literature reveals that the LSD Li-S batteries presented here offer a greater than 12-fold improvement in the cell shelf life with good cycling stability.

Authors:
 [1]; ORCiD logo [1]
  1. Univ. of Texas, Austin, TX (United States). Materials Science and Engineering Program & Texas Materials Inst.
Publication Date:
Research Org.:
Univ. of Texas, Austin, TX (United States); Univ. of Texas at Austin, Austin, TX (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1429338
Alternate Identifier(s):
OSTI ID: 1430180; OSTI ID: 1487459
Grant/Contract Number:  
EE0007218
Resource Type:
Accepted Manuscript
Journal Name:
ACS Energy Letters
Additional Journal Information:
Journal Volume: 2; Journal Issue: 5; Journal ID: ISSN 2380-8195
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Citation Formats

Chung, Sheng-Heng, and Manthiram, Arumugam. Lithium–Sulfur Batteries with the Lowest Self-Discharge and the Longest Shelf life. United States: N. p., 2017. Web. doi:10.1021/acsenergylett.7b00245.
Chung, Sheng-Heng, & Manthiram, Arumugam. Lithium–Sulfur Batteries with the Lowest Self-Discharge and the Longest Shelf life. United States. doi:10.1021/acsenergylett.7b00245.
Chung, Sheng-Heng, and Manthiram, Arumugam. Wed . "Lithium–Sulfur Batteries with the Lowest Self-Discharge and the Longest Shelf life". United States. doi:10.1021/acsenergylett.7b00245. https://www.osti.gov/servlets/purl/1429338.
@article{osti_1429338,
title = {Lithium–Sulfur Batteries with the Lowest Self-Discharge and the Longest Shelf life},
author = {Chung, Sheng-Heng and Manthiram, Arumugam},
abstractNote = {Lithium-sulfur (Li-S) batteries are promising as a nextgeneration energy-storage device because their energy density is higher than that of current Li-ion technology. However, in comparison to Li-ion batteries, Li-S batteries encounter much faster self-discharge and shorter shelf life. Unfortunately, the lack of literature against the realities of severe self-discharge makes developing a practically viable Li-S technology a daunting challenge. Here, we present low self-discharge (LSD) Li-S batteries that have the lowest self-discharge constant of 0.0022 per day and the longest shelf life of one year. The superior electrochemical stability of the LSD Li-S batteries is reflected in a low capacity-fade rate of only 0.14% per day over the extended experimental time period. In addition, an analysis of the Li-S articles investigating the self-discharge effect in the literature reveals that the LSD Li-S batteries presented here offer a greater than 12-fold improvement in the cell shelf life with good cycling stability.},
doi = {10.1021/acsenergylett.7b00245},
journal = {ACS Energy Letters},
number = 5,
volume = 2,
place = {United States},
year = {2017},
month = {4}
}

Journal Article:
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Cited by: 16 works
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