Investigation of the temperature and DOD effect on the performance-degradation behavior of lithium–sulfur pouch cells during calendar aging

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F23%3A00362065" target="_blank" >RIV/68407700:21230/23:00362065 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.apenergy.2022.120543" target="_blank" >https://doi.org/10.1016/j.apenergy.2022.120543</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apenergy.2022.120543" target="_blank" >10.1016/j.apenergy.2022.120543</a>

Result language

angličtina

Original language name

Investigation of the temperature and DOD effect on the performance-degradation behavior of lithium–sulfur pouch cells during calendar aging

Original language description

High-energy density sulfur cathodes are one of the most promising possibilities to replace currently used intercalation cathodes in lithium-ion batteries in future applications. However, lithium–sulfur batteries are still the subject of research due to unsatisfactory capacity retention and cycle performance. The cause of insufficient properties is the shuttle effect of higher polysulfides which are formed in a high voltage plateau. In an effort to optimize storage conditions of lithium–sulfur (Li–S) batteries, long-term calendar aging tests at various temperatures and depth-of-discharge were performed on pre-commercial 3.4 Ah Li–S pouch cells. The decrease in performance over two years of calendar aging in five stationary conditions was analyzed using non-destructive electrochemical tests. The negative effect on Li–S cell performance was more pronounced for temperature than for depth-of-discharge. The analyses of self-discharge and shuttle current were performed and as expected, the highest values were measured in a fully charged state where higher polysulfides are present. Furthermore, internal resistance was analyzed where an increase of resistance was observed for a discharged state due to the formation of a passivation layer from discharge products (Li2S2, Li2S). To maximize the life of the Li–S battery, storage at high temperatures and in a fully charged state should be avoided.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Energy

ISSN

0306-2619

e-ISSN

1872-9118

Volume of the periodical

332

Issue of the periodical within the volume

120543

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

1-11

UT code for WoS article

000923203700001

EID of the result in the Scopus database

2-s2.0-85144806156