Orientation-dependent arrangement of antisite defects in lithium iron(II) phosphate crystals

Sung Yoon Chung; Si Young Choi; Takahisa Yamamoto; Yuichi Ikuhara

doi:10.1002/anie.200803520

Orientation-dependent arrangement of antisite defects in lithium iron(II) phosphate crystals

Sung Yoon Chung, Si Young Choi, Takahisa Yamamoto, Yuichi Ikuhara

Research output: Contribution to journal › Article › peer-review

71 Citations (Scopus)

Abstract

(Figure Presented) Aggregated antisite cations of iron (see picture, red) in the lithium sites of doped lithium iron phosphate (LiFePO₄) are arranged preferentially along the b axis. To probe the peculiar array of the defects, Z-contrast STEM with a spherical-aberration correction is utilized. The images obtained using Z-contrast STEM suggest that the distribution of antisite defects in LiFePO₄ can be adjusted for improved lithium ion transport.

Original language	English
Pages (from-to)	543-546
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	48
Issue number	3
DOIs	https://doi.org/10.1002/anie.200803520
Publication status	Published - 2009 Jan 5

Keywords

Antisite defects
Crystal engineering
Electron microscopy
Solid-state structures

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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title = "Orientation-dependent arrangement of antisite defects in lithium iron(II) phosphate crystals",

abstract = "(Figure Presented) Aggregated antisite cations of iron (see picture, red) in the lithium sites of doped lithium iron phosphate (LiFePO4) are arranged preferentially along the b axis. To probe the peculiar array of the defects, Z-contrast STEM with a spherical-aberration correction is utilized. The images obtained using Z-contrast STEM suggest that the distribution of antisite defects in LiFePO4 can be adjusted for improved lithium ion transport.",

keywords = "Antisite defects, Crystal engineering, Electron microscopy, Solid-state structures",

author = "Chung, {Sung Yoon} and Choi, {Si Young} and Takahisa Yamamoto and Yuichi Ikuhara",

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T1 - Orientation-dependent arrangement of antisite defects in lithium iron(II) phosphate crystals

AU - Chung, Sung Yoon

AU - Choi, Si Young

AU - Yamamoto, Takahisa

AU - Ikuhara, Yuichi

PY - 2009/1/5

Y1 - 2009/1/5

N2 - (Figure Presented) Aggregated antisite cations of iron (see picture, red) in the lithium sites of doped lithium iron phosphate (LiFePO4) are arranged preferentially along the b axis. To probe the peculiar array of the defects, Z-contrast STEM with a spherical-aberration correction is utilized. The images obtained using Z-contrast STEM suggest that the distribution of antisite defects in LiFePO4 can be adjusted for improved lithium ion transport.

AB - (Figure Presented) Aggregated antisite cations of iron (see picture, red) in the lithium sites of doped lithium iron phosphate (LiFePO4) are arranged preferentially along the b axis. To probe the peculiar array of the defects, Z-contrast STEM with a spherical-aberration correction is utilized. The images obtained using Z-contrast STEM suggest that the distribution of antisite defects in LiFePO4 can be adjusted for improved lithium ion transport.

KW - Antisite defects

KW - Crystal engineering

KW - Electron microscopy

KW - Solid-state structures

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