Direct imaging of lithium atoms in LiV2O4 by spherical aberration-corrected electron microscopy

被引：75

作者：

Oshima, Yoshifumi ^{[1
,2
]}

Sawada, Hidetaka ^{[1
,3
]}

Hosokawa, Fumio ^{[1
,3
]}

Okunishi, Eiji ^{[1
,3
]}

Kaneyama, Toshikatsu ^{[1
,3
]}

Kondo, Yukihito ^{[1
,3
]}

Niitaka, Seiji ^{[4
]}

Takagi, Hidenori ^{[4
]}

Tanishiro, Yasumasa ^{[1
,5
]}

Takayanagi, Kunio ^{[1
,5
]}

机构：

[1] CREST, Japan Sci & Technol Agcy, Chiyoda Ku, Tokyo 1020075, Japan

[2] Tokyo Inst Technol, Dept Mat Sci & Engn, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[3] JEOL Ltd, Tokyo 1968558, Japan

[4] RIKEN, Magnet Mat Lab, Wako, Saitama 3510198, Japan

[5] Tokyo Inst Technol, Dept Condensed Matter Phys, Meguro Ku, Tokyo 1528551, Japan

来源：

JOURNAL OF ELECTRON MICROSCOPY | 2010年 / 59卷 / 06期

基金：

日本科学技术振兴机构;

关键词：

aberration correction; cold field emission gun; scanning transmission electron microscopy; lithium; spinel structure; annular bright field microscopy; ION BATTERIES; RESOLUTION; SPINEL;

D O I：

10.1093/jmicro/dfq017

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

We visualized lithium atom columns in LiV2O4 crystals by combining scanning transmission electron microscopy with annular bright field (ABF) imaging using a spherical aberration-corrected electron microscope (R005) viewed from the [110] direction. The incident electron beam was coherent with a convergent angle of 30 mrad (semi-angle), and the detector collected scattered electrons over 20-30 mrad (semi-angle). The ABF image showed dark dots corresponding to lithium, vanadium and oxygen columns.

引用

页码：457 / 461

页数：5

共 18 条

[11] Atomic-resolution imaging of lithium in Al3Li precipitates [J].

Rossell, M. D. ;

Erni, R. ;

Asta, M. ;

Radmilovic, V. ;

Dahmen, U. .

PHYSICAL REVIEW B, 2009, 80 (02)

[12] Achieving 63pm resolution in scanning transmission electron microscope with spherical aberration corrector [J].

Sawada, Hidetaka ;

Hosokawai, Fumio ;

Kaneyama, Toshikatsu ;

Ishizawa, Toshihiro ;

Terao, Mitsuhisa ;

Kawazoe, Muneyuki ;

Sannomiya, Takumi ;

Tomita, Takeshi ;

Kondo, Yukihito ;

Tanaka, Takayuki ;

Oshima, Yoshifumi ;

Tanishiro, Yasumasa ;

Yamamoto, Naoki ;

Takayanagi, Kunio .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2007, 46 (20-24) :L568-L570

[13] STEM imaging of 47-pm-separated atomic columns by a spherical aberration-corrected electron microscope with a 300-kV cold field emission gun [J].

Sawada, Hidetaka ;

Tanishiro, Yasumasa ;

Ohashi, Nobuhiro ;

Tomita, Takeshi ;

Hosokawa, Fumio ;

Kaneyama, Toshikatsu ;

Kondo, Yukihito ;

Takayanagi, Kunio .

JOURNAL OF ELECTRON MICROSCOPY, 2009, 58 (06) :357-361

[14] Atomic resolution of lithium ions in LiCoO2 [J].

Shao-Horn, Y ;

Croguennec, L ;

Delmas, C ;

Nelson, EC ;

O'Keefe, MA .

NATURE MATERIALS, 2003, 2 (07) :464-467

[15] Issues and challenges facing rechargeable lithium batteries [J].

Tarascon, JM ;

Armand, M .

NATURE, 2001, 414 (6861) :359-367

[16] SPINEL ELECTRODES FROM THE LI-MN-O SYSTEM FOR RECHARGEABLE LITHIUM BATTERY APPLICATIONS [J].

THACKERAY, MM ;

DEKOCK, A ;

ROSSOUW, MH ;

LILES, D ;

BITTIHN, R ;

HOGE, D .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (02) :363-366

[17] Materials characterization in the aberration-corrected scanning transmission electron microscope [J].

Varela, M ;

Lupini, AR ;

van Benthem, K ;

Borisevich, AY ;

Chisholm, MF ;

Shibata, N ;

Abe, E ;

Pennycook, SJ .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2005, 35 :539-569

[18] Spinel Li[Li1/3Ti5/3]O4 as an anode material for lithium ion batteries [J].

Wang, GX ;

Bradhurst, DH ;

Dou, SX ;

Liu, HK .

JOURNAL OF POWER SOURCES, 1999, 83 (1-2) :156-161

← 1 2 →