A High-Performance Carbonate-Free Lithium|Garnet Interface Enabled by a Trace Amount of Sodium

© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 32(2020), 26 vom: 15. Juli, Seite e2000575
1. Verfasser: Fu, Xingjie (VerfasserIn)
Weitere Verfasser: Wang, Tiantian, Shen, Wenzhong, Jiang, Miaoli, Wang, Youwei, Dai, Qiushi, Wang, Da, Qiu, Zhenping, Zhang, Yelong, Deng, Kuirong, Zeng, Qingguang, Zhao, Ning, Guo, Xiangxin, Liu, Zheng, Liu, Jianjun, Peng, Zhangquan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article garnet lithium anodes lithium|solid-state electrolyte interfaces solid-state electrolytes
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520 |a Garnet-type solid-state electrolytes (SSEs) are promising for the realization of next-generation high-energy-density Li metal batteries. However, a critical issue associated with the garnet electrolytes is the poor physical contact between the Li anode and the garnet SSE and the resultant high interfacial resistance. Here, it is reported that the Li|garnet interface challenge can be addressed by using Li metal doped with 0.5 wt% Na (denoted as Li*) and melt-casting the Li* onto the garnet SSE surface. A mechanistic study, using Li6.4 La3 Zr1.4 Ta0.6 O12 (LLZTO) as a model SSE, reveals that Li2 CO3 resides within the grain boundaries of newly polished LLZTO pellet, which is difficult to remove and hinders the wetting process. The Li* melt can phase-transfer the Li2 CO3 from the LLZTO grain boundary to the Li*'s top surface, and therefore facilitates the wetting process. The obtained Li*|LLZTO demonstrates a low interfacial resistance, high rate capability, and long cycle life, and can find applications in future all-solid-state batteries (e.g., Li*|LLZTO|LiFePO4 ) 
650 4 |a Journal Article 
650 4 |a garnet 
650 4 |a lithium anodes 
650 4 |a lithium|solid-state electrolyte interfaces 
650 4 |a solid-state electrolytes 
700 1 |a Wang, Tiantian  |e verfasserin  |4 aut 
700 1 |a Shen, Wenzhong  |e verfasserin  |4 aut 
700 1 |a Jiang, Miaoli  |e verfasserin  |4 aut 
700 1 |a Wang, Youwei  |e verfasserin  |4 aut 
700 1 |a Dai, Qiushi  |e verfasserin  |4 aut 
700 1 |a Wang, Da  |e verfasserin  |4 aut 
700 1 |a Qiu, Zhenping  |e verfasserin  |4 aut 
700 1 |a Zhang, Yelong  |e verfasserin  |4 aut 
700 1 |a Deng, Kuirong  |e verfasserin  |4 aut 
700 1 |a Zeng, Qingguang  |e verfasserin  |4 aut 
700 1 |a Zhao, Ning  |e verfasserin  |4 aut 
700 1 |a Guo, Xiangxin  |e verfasserin  |4 aut 
700 1 |a Liu, Zheng  |e verfasserin  |4 aut 
700 1 |a Liu, Jianjun  |e verfasserin  |4 aut 
700 1 |a Peng, Zhangquan  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 32(2020), 26 vom: 15. Juli, Seite e2000575  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnns 
773 1 8 |g volume:32  |g year:2020  |g number:26  |g day:15  |g month:07  |g pages:e2000575 
856 4 0 |u http://dx.doi.org/10.1002/adma.202000575  |3 Volltext 
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