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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202002741
|2 doi
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|a pubmed25n1053.xml
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|a (DE-627)NLM316053287
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|a DE-627
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|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Ji, Xiao
|e verfasserin
|4 aut
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| 245 |
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|a Solid-State Electrolyte Design for Lithium Dendrite Suppression
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 07.12.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 Wiley-VCH GmbH.
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|a All-solid-state Li metal batteries have attracted extensive attention due to their high safety and high energy density. However, Li dendrite growth in solid-state electrolytes (SSEs) still hinders their application. Current efforts mainly aim to reduce the interfacial resistance, neglecting the intrinsic dendrite-suppression capability of SSEs. Herein, the mechanism for the formation of Li dendrites is investigated, and Li-dendrite-free SSE criteria are reported. To achieve a high dendrite-suppression capability, SSEs should be thermodynamically stable with a high interface energy against Li, and they should have a low electronic conductivity and a high ionic conductivity. A cold-pressed Li3 N-LiF composite is used to validate the Li-dendrite-free design criteria, where the highly ionic conductive Li3 N reduces the Li plating/stripping overpotential, and LiF with high interface energy suppresses dendrites by enhancing the nucleation energy and suppressing the Li penetration into the SSEs. The Li3 N-LiF layer coating on Li3 PS4 SSE achieves a record-high critical current of >6 mA cm-2 even at a high capacity of 6.0 mAh cm-2 . The Coulombic efficiency also reaches a record 99% in 150 cycles. The Li3 N-LiF/Li3 PS4 SSE enables LiCoO2 cathodes to achieve 101.6 mAh g-1 for 50 cycles. The design principle opens a new opportunity to develop high-energy all-solid-state Li metal batteries
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4 |
|a Journal Article
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4 |
|a dendrite-free criteria
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| 650 |
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4 |
|a density functional theory calculations
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| 650 |
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4 |
|a interface energy
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| 650 |
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4 |
|a lithium-metal batteries
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| 650 |
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4 |
|a solid-state electrolytes
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| 700 |
1 |
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|a Hou, Singyuk
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Pengfei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Xinzi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Piao, Nan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Ji
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fan, Xiulin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Chunsheng
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 46 vom: 01. Nov., Seite e2002741
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:32
|g year:2020
|g number:46
|g day:01
|g month:11
|g pages:e2002741
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|u http://dx.doi.org/10.1002/adma.202002741
|3 Volltext
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