A Fluoride-Rich Solid-Like Electrolyte Stabilizing Lithium Metal Batteries

A Fluoride-Rich Solid-Like Electrolyte Stabilizing Lithium Metal Batteries

© 2024 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 19 vom: 19. Mai, Seite e2313135
1. Verfasser: Wang, Huashan (VerfasserIn)
Weitere Verfasser: Huang, Weiyuan, Rao, Ruijun, Zhu, Jiacheng, Chen, Huige, Liu, Haoyu, Li, Jiashuai, Li, Qiufen, Bai, Mengxi, Wang, Xiang, Wang, Xuefeng, Liu, Tongchao, Amine, Khalil, Wang, Ziqi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Li metal anodes solid electrolyte interphases solid‐like electrolytes
Beschreibung
Zusammenfassung:© 2024 Wiley‐VCH GmbH.
To address the problems associated with Li metal anodes, a fluoride-rich solid-like electrolyte (SLE) that combines the benefits of solid-state and liquid electrolytes is presented. Its unique triflate-group-enhanced frame channels facilitate the formation of a functional inorganic-rich solid electrolyte interphase (SEI), which not only improves the reversibility and interfacial charge transfer of Li anodes but also ensures uniform and compact Li deposition. Furthermore, these triflate groups contribute to the decoupling of Li+ and provide hopping sites for rapid Li+ transport, enabling a high room-temperature ionic conductivity of 1.1 mS cm-1 and a low activation energy of 0.17 eV, making it comparable to conventional liquid electrolytes. Consequently, Li symmetric cells using such SLE achieve extremely stable plating/stripping cycling over 3500 h at 0.5 mA cm-2 and support a high critical current up to 2 mA cm-2. The assembled Li||LiFePO4 solid-like batteries exhibit exceptional cyclability for over 1 year and a half, even outperforming liquid cells. Additionally, high-voltage cylindrical cells and high-capacity pouch cells are demonstrated, corroborating much simpler processibility in battery assembly compared to all-solid-state batteries
Beschreibung:Date Revised 09.05.2024
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202313135