Constructing a Uniform and Stable Mixed Conductive Layer to Stabilize the Solid-State Electrolyte/Li Interface by Cold Bonding at Mild Conditions

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 18 vom: 07. Mai, Seite e2212096
1. Verfasser: Chen, Yi (VerfasserIn)
Weitere Verfasser: Qian, Ji, Hu, Xin, Ma, Yitian, Li, Yu, Xue, Tianyang, Yu, Tianyang, Li, Li, Wu, Feng, Chen, Renjie
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article RT-MCL cold bonding garnet electrolyte interfacial modification solid-state Li-metal batteries
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520 |a Garnet-type Li6.4 La3 Zr1.4 Ta0.6 O12 (LLZ) electrolyte is a promising candidate for high-performance solid-state batteries, while its applications are hindered by interfacial problems. Although the utilization of functional coatings and molten lithium (Li) effectively solves the LLZ interfacial compatibility problem with Li metal, it poses problems such as high cost, high danger, and structural damage. Herein, a mixed conductive layer (MCL) is introduced at the LLZ/Li interface (RT-MCL) via an in situ cold bonding process at room temperature. Such a stable and compact RT-MCL can effectively suppress side reactions and protect the crystal structure of LLZ, and it also inhibits growth of Li dendrites and promotes uniform Li deposition. The critical current density (CCD) of the Li symmetric cell composed of RT-MCL-LLZ is increased to 1.8 mA cm-2 and provides stable cycling performance over 2000 h under 0.5 mA cm-2 . Additionally, this in situ cold bonding treatment can significantly reduce cost and eliminate potential safety issues caused by the high-temperature processing of Li metal. This work highlights tremendous potential of this cold bonding technique in the reasonable design and optimization of the LLZ/Li interface 
650 4 |a Journal Article 
650 4 |a RT-MCL 
650 4 |a cold bonding 
650 4 |a garnet electrolyte 
650 4 |a interfacial modification 
650 4 |a solid-state Li-metal batteries 
700 1 |a Qian, Ji  |e verfasserin  |4 aut 
700 1 |a Hu, Xin  |e verfasserin  |4 aut 
700 1 |a Ma, Yitian  |e verfasserin  |4 aut 
700 1 |a Li, Yu  |e verfasserin  |4 aut 
700 1 |a Xue, Tianyang  |e verfasserin  |4 aut 
700 1 |a Yu, Tianyang  |e verfasserin  |4 aut 
700 1 |a Li, Li  |e verfasserin  |4 aut 
700 1 |a Wu, Feng  |e verfasserin  |4 aut 
700 1 |a Chen, Renjie  |e verfasserin  |4 aut 
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773 1 8 |g volume:35  |g year:2023  |g number:18  |g day:07  |g month:05  |g pages:e2212096 
856 4 0 |u http://dx.doi.org/10.1002/adma.202212096  |3 Volltext 
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