Experimental study on cycle aging of 3.4 Ah lithium-sulfur pouch cells: Temperature and current investigation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0201307" target="_blank" >RIV/00216305:26220/26:0201307 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/25:00386256

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1385894725111856" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894725111856</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2025.170341" target="_blank" >10.1016/j.cej.2025.170341</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental study on cycle aging of 3.4 Ah lithium-sulfur pouch cells: Temperature and current investigation

Popis výsledku v původním jazyce

High energy density sulfur cathodes are among the most promising alternatives to conventional intercalation cathodes for next-generation lithium-ion batteries. However, the practical implementation of lithium-sulfur (Li-S) systems is limited by rapid capacity fade and poor cycling stability. These issues are primarily driven by the polysulfide shuttle effect, wherein soluble higher lithium polysulfides, generated at the high voltage discharge plateau, migrate between the electrodes, resulting in active material loss. In an attempt to approach the commercial application of Li-S batteries, an in-depth investigation of pouch cells under different conditions is inevitable. This study focuses on the cycle aging of pre-commercial 3.4 Ah Li-S pouch cells at different temperatures and current rates using non-destructive techniques. The most negative effect on the performance of the Li-S battery cell is a low temperature of 10 degrees C and 50 degrees C. From the perspective of different charging and discharging currents, the reduced battery lifetime was observed for fast charging at 0.2 C and 0.3 C. The internal resistance increased with the degradation of the battery cell and is more pronounced in the low voltage plateau. To maximize the cycle life of the Li-S batteries, the optimal cycling conditions are at around 30 degrees C, charging at 0.1 C and discharging at 0.2 C.

Název v anglickém jazyce

Experimental study on cycle aging of 3.4 Ah lithium-sulfur pouch cells: Temperature and current investigation

Popis výsledku anglicky

High energy density sulfur cathodes are among the most promising alternatives to conventional intercalation cathodes for next-generation lithium-ion batteries. However, the practical implementation of lithium-sulfur (Li-S) systems is limited by rapid capacity fade and poor cycling stability. These issues are primarily driven by the polysulfide shuttle effect, wherein soluble higher lithium polysulfides, generated at the high voltage discharge plateau, migrate between the electrodes, resulting in active material loss. In an attempt to approach the commercial application of Li-S batteries, an in-depth investigation of pouch cells under different conditions is inevitable. This study focuses on the cycle aging of pre-commercial 3.4 Ah Li-S pouch cells at different temperatures and current rates using non-destructive techniques. The most negative effect on the performance of the Li-S battery cell is a low temperature of 10 degrees C and 50 degrees C. From the perspective of different charging and discharging currents, the reduced battery lifetime was observed for fast charging at 0.2 C and 0.3 C. The internal resistance increased with the degradation of the battery cell and is more pronounced in the low voltage plateau. To maximize the cycle life of the Li-S batteries, the optimal cycling conditions are at around 30 degrees C, charging at 0.1 C and discharging at 0.2 C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

<a href="/cs/project/EH22_008%2F0004617" target="_blank" >EH22_008/0004617: Konverze a skladování energie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

1873-3212

Svazek periodika

525

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

001612766400010

EID výsledku v databázi Scopus

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