Anhydrous LiNbO3 Synthesis and Its Application for Surface Modification of Garnet Type Li-Ion Conductors

被引：6

作者：

Mann, Markus ^{[1
]}

Schwab, Christian ^{[2
]}

Ihrig, Martin ^{[1
]}

Finsterbusch, Martin ^{[1
,3
]}

Martin, Manfred ^{[2
,3
,4
]}

Guillon, Olivier ^{[1
,3
,4
]}

Fattakhova-Rohlfing, Dina ^{[1
,3
,4
]}

机构：

[1] Forschungszentrum Julich, Mat Synth & Proc IEK 1, Inst Energy & Climate Res, D-52425 Julich, Germany

[2] Rhein Westfal TH Aachen, Inst Phys Chem IPC, Landoltweg 2, D-52074 Aachen, Germany

[3] Forschungszentrum Julich, Helmholtz Inst Munster Ion Energy Storage IEK 12, Corrensstr 46, D-48149 Munster, Germany

[4] JARA Energy, Julich Aachen Res Alliance, D-52425 Julich, Germany

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2022年 / 169卷 / 04期

关键词：

LLZO; solid state electrolyte; lithium metal electrode; lithium niobate; critical current density; interface modification; LITHIUM-NIOBATE; CONDUCTIVITY; INTERFACE; ELECTRODE; LICOO2;

D O I：

10.1149/1945-7111/ac6836

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In our work we demonstrate a facile, water-free synthesis of amorphous lithium niobate (LiNbO3) layers. Our developed method also enables the coating of substrates in inert atmosphere with simple, industrial scalable methods. As verification, a 120 nm thin LiNbO3 layer was deposited on the garnet type lithium ion conductor Li6.45Al0.05La3Zr1.6Ta0.4O12 (LLZTO) to improve its interface to lithium metal and reduce dendrite formation. The application of the thin film reduced the interface resistance between LLZTO and lithium metal to 1.02(13) omega center dot cm(2) and increased the critical current density for dendrite formation to at least 0.5 mA cm(-2). The chemical stability of the LiNbO3 thin film in contact with Li-metal was verified by SEM, XPS and ToF-SIMS.

引用

页数：7

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