In situ electron holography of electric potentials inside a solid-state electrolyte: Effect of electric-field leakage

被引：35

作者：

Aizawa, Yuka ^{[1
,4
]}

Yamamoto, Kazuo ^{[1
]}

Sato, Takeshi ^{[1
,4
]}

Murata, Hidekazu ^{[2
]}

Yoshida, Ryuji ^{[1
]}

Fisher, Craig A. J. ^{[1
]}

Kato, Takehisa ^{[3
]}

Iriyama, Yasutoshi ^{[3
]}

Hirayama, Tsukasa ^{[1
]}

机构：

[1] Japan Fine Ceram Ctr, Nanostruct Res Lab, Atsuta Ku, 2-4-1 Mutsuno, Nagoya, Aichi 4568587, Japan

[2] Meijo Univ, Fac Sci & Technol, Tempaku Ku, 1-501 Shiogamaguchi, Nagoya, Aichi 4688502, Japan

[3] Nagoya Univ, Dept Mat Phys & Energy Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan

[4] Hitachi High Technol Corp, Tokyo, Japan

来源：

ULTRAMICROSCOPY | 2017年 / 178卷

关键词：

Electron holography; Effect of electric-field leakage; 3D-boundary-charge method; Solid electrolyte; Electric-potential distribution; 3-DIMENSIONAL RECONSTRUCTION; INTERFEROMETRY; BATTERIES; LITHIUM; MODEL;

D O I：

10.1016/j.ultramic.2016.07.015

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

In situ electron holography is used to observe changes of electric-potential distributions in an amorphous lithium phosphorus oxynitride (LiPON) solid-state electrolyte when different voltages are applied. 2D phase images are simulated by integrating the 3D potential distribution along the electron trajectory through a thin Cu/LiPON/Cu region. Good agreement between experimental and simulated phase distributions is obtained when the influence of the external electric field is taken into account using the 3D boundary-charge method. Based on the precise potential changes, the lithium-ion and lithium-vacancy distributions inside the LiPON layer and electric double layers (EDLs) are inferred. The gradients of the phase drops at the interfaces in relation to EDL widths are discussed. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：20 / 26

页数：7

共 23 条

[1] Building better batteries [J].