中文版 | English
Title

In Situ Construction of an Ultra-Stable Conductive Composite Interface for High-Voltage All-Solid-State Lithium Metal Batteries

Author
Corresponding AuthorRen,Fuzeng; Kang,Feiyu
Publication Years
2020
DOI
Source Title
ISSN
0935-9648
EISSN
1521-4095
Volume59Issue:29Pages:11882-11886
Abstract
The garnet electrolyte presents poor wettability with Li metal, resulting in an extremely large interfacial impedance and drastic growth of Li dendrites. Herein, a novel ultra-stable conductive composite interface (CCI) consisting of LiSn alloy and LiN is constructed in situ between LiLaZrTaO (LLZTO) pellet and Li metal by a conversion reaction of SnNx with Li metal at 300°C. The LiSn alloy as a continuous and robust bridge between LLZTO and Li metal can effectively reduce the LLZTO/Li interfacial resistance from 4468.0 Ω to 164.8 Ω. Meanwhile, the LiN as a fast Li-ion channel can efficiently transfer Li ions and give their uniform distribution at the LLZTO/Li interface. Therefore, the Li/LLZTO@CCI/ Li symmetric battery stably cycles for 1200 h without short circuit, and the all-solid-state high-voltage Li/LLZTO@CCI/ LiNiCoMnO battery achieves a specific capacity of 161.4 mAhg at 0.25 C with a capacity retention rate of 92.6% and coulombic efficiency of 100.0% after 200 cycles at 25°C.
Keywords
URL[Source Record]
Indexed By
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Corresponding
EI Accession Number
20223112453704
EI Keywords
Binary alloys ; Interface states ; Lithium ; Lithium alloys ; Solid electrolytes ; Solid-State Batteries ; Tin alloys
ESI Classification Code
Lithium and Alloys:542.4 ; Tin and Alloys:546.2 ; Alkali Metals:549.1 ; Secondary Batteries:702.1.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Classical Physics; Quantum Theory; Relativity:931 ; High Energy Physics; Nuclear Physics; Plasma Physics:932
ESI Research Field
MATERIALS SCIENCE
Scopus EID
2-s2.0-85134878124
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/382646
DepartmentDepartment of Materials Science and Engineering
Affiliation
1.Shenzhen Geim Graphene Center,Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen,518055,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
Corresponding Author AffilicationDepartment of Materials Science and Engineering
Recommended Citation
GB/T 7714
Shi,Kai,Wan,Zipei,Yang,Lu,et al. In Situ Construction of an Ultra-Stable Conductive Composite Interface for High-Voltage All-Solid-State Lithium Metal Batteries[J]. ADVANCED MATERIALS,2020,59(29):11882-11886.
APA
Shi,Kai.,Wan,Zipei.,Yang,Lu.,Zhang,Yiwen.,Huang,Yanfei.,...&Kang,Feiyu.(2020).In Situ Construction of an Ultra-Stable Conductive Composite Interface for High-Voltage All-Solid-State Lithium Metal Batteries.ADVANCED MATERIALS,59(29),11882-11886.
MLA
Shi,Kai,et al."In Situ Construction of an Ultra-Stable Conductive Composite Interface for High-Voltage All-Solid-State Lithium Metal Batteries".ADVANCED MATERIALS 59.29(2020):11882-11886.
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