Репозиторий КазНИТУ

Optimizing reduced graphene oxide/MXene composites as sulfur hosts for lithium-sulfur batteries: A systematic investigation

Авторы:

Mukhammed Kenzhebek (Соавтор)

Almagul Mentbayeva (Соавтор)

Zhazira Supiyeva (Соавтор)

Asset Kabyshev (Соавтор)

Fail Sultanov (Соавтор)

Издательство:

Materials Letters

Дата издания

01.10.2025

Область исследования

Инжиниринг и технологии

Тип исследования

Прикладное

Аннотация (краткое описание)

Large volume changes, the insulating nature of sulfur, and the lithium polysulfides (LiPSs) shuttle effect significantly hinder the practical application of lithium-sulfur (Li-S) batteries. In this study, reduced graphene oxide/MXene (rGO/MXene) composites were investigated as potential sulfur host materials. Since the rGO-to-MXene ratio influences electrical conductivity, LiPSs confinement, and structural stability, MXene contents of 10 wt%, 20 wt%, and 30 wt% were systematically evaluated. The (rGO/MXene10)_S60 electrode exhibited the most promising performance, delivering an initial discharge capacity of 981 mAh/g and retaining 606 mAh/g after 100 cycles with Coulombic efficiency (CE) above 97 %. These results demonstrate that a 9:1 rGO-to-MXene ratio optimally enhances conductivity, structural stability, and LiPSs anchoring, making it a promising sulfur host for Li-S batteries.

Соответствие целям устойчивого развития (ЦУР)

Недорогая и чистая энергия

URI

https://www.scopus.com/record/display.url?eid=2-s2.0-105005196582&origin=resultslist

DOI

10.1016/j.matlet.2025.138773

Тип публикаций

Статья

Сведения о финансировании

This research is funded by the Committee of Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No. BR27198045).

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