Communication—Li/Li7La3Zr2O12 Interfacial Modification by Constructing a Layer of Cu-Li Alloy. Issue 13 (6th September 2019)

• Record Type: Journal Article
• Authors: Xiang, Xing; Cao, Shiyu; Chen, Fei; Shen, Qiang; Zhang, Lianmeng
• Is Part Of: Journal of the Electrochemical Society. Volume 166:Issue 13(2019)
• Page Start: A3028
• Page End: A3030
• Publication Date: 2019-09-06
• Subjects: Batteries - Lithium -- Films -- Solid-State Ionics -- interfacial impedance -- Li7La3Zr2O12 (LLZO) -- magnetron sputtering; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0651913jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Cubic Li7 La3 Zr2 O12 (LLZO) is regarded as an ideal solid-state electrolyte because of its superior performances. However, the inadequate contact between LLZO and lithium anode results in high interfacial impedance, which hinders the commercial application of LLZO. In this work, a thin layer of Cu has been deposited on LLZO by magnetron sputtering to improve the interfacial contact. After modification, the interfacial impedance between LLZO and lithium reduces from 677 Ω·cm 2 to 29 Ω·cm 2 .