Effects of Anisotropy in Rutile TiO2 on the Performance of Solid-State Lithium Batteries

被引：24

作者：

Imazeki, Daisuke ^{[1
]}

van Gils, Christopher Cornelis ^{[2
]}

Nishio, Kazunori ^{[1
]}

Shimizu, Ryota ^{[1
,3
]}

Hitosugi, Taro ^{[1
]}

机构：

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

[2] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands

[3] JST PRESTO, Dept Res Promot, Kawaguchi, Saitama 3320012, Japan

来源：

ACS APPLIED ENERGY MATERIALS | 2020年 / 3卷 / 09期

关键词：

rutile TiO2; epitaxial thin films; solid-state Li batteries; solid electrolyte/electrode interface resistance; anisotropy of Li diffusion in rutile TiO2; in vacuo process; ELECTROLYTE/ELECTRODE INTERFACES; RESISTANCE; LI;

D O I：

10.1021/acsaem.0c00910

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：

Rutile TiO2 is a promising electrode material for Li-ion secondary batteries. It has been theoretically predicted that rutile TiO2 exhibits anisotropy in the Li-ion diffusion coefficients, which may impact the battery performance. Consequently, to improve the battery performance, the effect of the anisotropy of Li-ion diffusion on battery performance must be clarified. Here, we quantitatively discuss the influence of the crystal orientation of rutile TiO2 on battery performance, in particular, on internal resistance. Li batteries were fabricated using rutile TiO2 epitaxial films with two orientations: (100) and (001). The results indicate that the (001)-oriented crystal exhibits a high battery performance with a low resistance at the interface of the solid electrolyte and electrode.

引用

页码：8338 / 8343

页数：6

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