Study on Self-discharge Behavior of Lithium-Sulfur Batteries

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Abstract

Lithium-Sulfur (Li-S) batteries are a promising energy storage technology, which draws interest due to their high theoretical limits in terms of specific capacity, specific energy and energy density. However as a drawback, they suffer from a high self-discharge rate, which is mainly caused by ongoing polysulfide shuttle. In this paper, the self-discharge behavior of Li-S batteries is experimentally investigated, considering various conditions as depth-of-discharge, temperature and idling time. The self-discharge rate under different conditions is identified and quantified. Moreover, a methodology for estimating the capacity of the high voltage plateau based on a self-discharge constant was analyzed; however, the method needs further improvements in order to estimate this capacity accurately for all conditions.
Original languageEnglish
JournalECS Transactions
Volume70
Issue number1
Pages (from-to)95-103
ISSN1938-6737
DOIs
Publication statusPublished - 2015
EventInternational Conference Advanced Batteries, Accumulators and Fuel Cells - Brno, Czech Republic
Duration: 30 Aug 20153 Sep 2015
Conference number: 16

Conference

ConferenceInternational Conference Advanced Batteries, Accumulators and Fuel Cells
Number16
CountryCzech Republic
CityBrno
Period30/08/201503/09/2015

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