Liquid Metal Loaded Molecular Sieve Specialized Lithium Dendrite Blocking Filler for Polymeric Solid-State Electrolyte

Liquid Metal Loaded Molecular Sieve : Specialized Lithium Dendrite Blocking Filler for Polymeric Solid-State Electrolyte

© 2024 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 21 vom: 12. Mai, Seite e2313456
1. Verfasser: Qian, Shangshu (VerfasserIn)
Weitere Verfasser: Zhu, Haojie, Sun, Chuang, Li, Meng, Zheng, Mengting, Wu, Zhenzhen, Liang, Yuhao, Yang, Cheng, Zhang, Shanqing, Lu, Jun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article all‐solid–state lithium metal batteries functional protective electrolyte liquid metal lithium dendrite molecular sieve
Beschreibung
Zusammenfassung:© 2024 Wiley‐VCH GmbH.
All-solid-state lithium metal batteries (LMBs) are currently one of the best candidates for realizing the yearning high-energy-density batteries with high safety. However, even polyethylene oxide (PEO), the most popular polymeric solid-state electrolyte (SSE) with the largest ionic conductivity in the category so far, has significant challenges due to the safety issues of lithium dendrites, and the insufficient ionic conductivity. Herein, molecular sieve (MS) is integrated into the PEO as an inert filler with the liquid metal (LM) as a functional module, forming an "LM-MS-PEO" composite as both SSE with enhanced ionic conductivity, and protection layer against lithium dendrites. As demonstrated by theoretical and experimental investigations, LM released from MS can be uniformly and efficiently distributed in PEO, which could avoid agglomeration, enable the effective blocking of lithium dendrites, and regulate the mass transport of Li ions, thus achieving even deposition of lithium during charge/discharge. Moreover, MS could reduce the crystallinity of PEO, improve lithium-ion conductivity, and reduce operating temperature. Benefiting from the introduction of the functional MS/LM, the LM-MS-PEO electrolyte exhibits fourfold higher lithium ionic conductivity than the pristine PEO at 40 °C, while the as-assembled all-solid-state LMBs have four to five times longer stable cycle life
Beschreibung:Date Revised 24.05.2024
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202313456