Impact of the Crystal Orientation of Positive Electrodes on the Interface Resistance across a Solid Electrolyte and Electrode

被引：17

作者：

Nishio, Kazunori ^{[1
]}

Nakamura, Naoto ^{[1
]}

Horiba, Koji ^{[2
]}

Kitamura, Miho ^{[2
]}

Kumigashira, Hiroshi ^{[2
,3
]}

Shimizu, Ryota ^{[1
,4
]}

Hitosugi, Taro ^{[1
]}

机构：

[1] Tokyo Inst Technol, Sch Mat & Chem Technol, Tokyo 1528552, Japan

[2] High Energy Accelerator Res Org KEK, Inst Mat Struct Sci, Photon Factory, Tsukuba, Ibaraki 3050801, Japan

[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[4] Japan Sci & Technol Agcy, PRESTO, Saitama 3320012, Japan

来源：

ACS APPLIED ENERGY MATERIALS | 2020年 / 3卷 / 07期

关键词：

LiNi1/3Mn1/3Co1/3O2 epitaxial thin films; solid-state Li batteries; solid electrolyte/electrode interface; crystal orientation dependence of the interface resistance; in vacuo process; air exposure effect on the interface resistance; pulsed laser deposition; CATHODE MATERIAL; ELECTRODE/ELECTROLYTE INTERFACE; STORAGE CHARACTERISTICS; LITHIUM BATTERIES; LICOO2; SURFACE; LICO1/3NI1/3MN1/3O2; 1ST-PRINCIPLES;

D O I：

10.1021/acsaem.0c00644

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Understanding the origin of the resistance at the interfaces of a solid electrolyte and electrode material is crucial for the design of high-performance all-solid-state lithium batteries. In particular, it is of considerable importance to quantitatively study the impact of the crystal orientations of electrodes on the interface resistance. However, the investigation of the properties of buried interfaces has been challenging because conventional studies are based on granular samples. In this work, we quantitatively examined the resistance at the interface of the solid electrolyte Li3PO4 and LiNi1/3Mn1/3Co1/3O2 (NMC) positive electrode epitaxial thin films. We fabricated thin-film NMC electrodes with two orientations, (001) and (104), and investigated the battery performance. Furthermore, we clarified that when the surfaces of NMC were exposed to the air, the Li3PO4/NMC interface resistances increased drastically, depending on the crystal orientations.

引用

页码：6416 / 6421

页数：6

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