Electronic structures of partially fluorinated lithium manganese spinel oxides and their electrochemical properties

Keisuke Matsumoto; Tomokazu Fukutsuka; Toyoki Okumura; Yoshiharu Uchimoto; Koji Amezawa; Minoru Inaba; Akimasa Tasaka

doi:10.1016/j.jpowsour.2008.09.073

Electronic structures of partially fluorinated lithium manganese spinel oxides and their electrochemical properties

Keisuke Matsumoto, Tomokazu Fukutsuka, Toyoki Okumura, Yoshiharu Uchimoto, Koji Amezawa, Minoru Inaba, Akimasa Tasaka

Division of Process and System Engineering

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

13 Citations (Scopus)

Abstract

Partially fluorinated lithium manganese spinel oxides (LiMn_1.8Li_0.1Ni_0.1O_4-xF_x) were prepared by solid-state reaction. Relationship between the electronic structures of LiMn_1.8Li_0.1Ni_0.1O_4-xF_x and their electrochemical properties were investigated. X-ray absorption near-edge structure (XANES) of Mn K-edge showed that the absorption edge shifted to lower energy with increasing F^- content, which indicated decrease of the Mn average oxidation state. Discharge capacity at first cycle was increased by decrease of the Mn average oxidation state with increasing F^- content.

Original language	English
Pages (from-to)	599-601
Number of pages	3
Journal	Journal of Power Sources
Volume	189
Issue number	1
DOIs	https://doi.org/10.1016/j.jpowsour.2008.09.073
Publication status	Published - 2009 Apr 1

Keywords

Electronic structure
Fluorination
LiMnO
X-ray absorption spectroscopy (XAS)

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2008.09.073

Cite this

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abstract = "Partially fluorinated lithium manganese spinel oxides (LiMn1.8Li0.1Ni0.1O4-xFx) were prepared by solid-state reaction. Relationship between the electronic structures of LiMn1.8Li0.1Ni0.1O4-xFx and their electrochemical properties were investigated. X-ray absorption near-edge structure (XANES) of Mn K-edge showed that the absorption edge shifted to lower energy with increasing F- content, which indicated decrease of the Mn average oxidation state. Discharge capacity at first cycle was increased by decrease of the Mn average oxidation state with increasing F- content.",

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T1 - Electronic structures of partially fluorinated lithium manganese spinel oxides and their electrochemical properties

AU - Matsumoto, Keisuke

AU - Fukutsuka, Tomokazu

AU - Okumura, Toyoki

AU - Uchimoto, Yoshiharu

AU - Amezawa, Koji

AU - Inaba, Minoru

AU - Tasaka, Akimasa

PY - 2009/4/1

Y1 - 2009/4/1

N2 - Partially fluorinated lithium manganese spinel oxides (LiMn1.8Li0.1Ni0.1O4-xFx) were prepared by solid-state reaction. Relationship between the electronic structures of LiMn1.8Li0.1Ni0.1O4-xFx and their electrochemical properties were investigated. X-ray absorption near-edge structure (XANES) of Mn K-edge showed that the absorption edge shifted to lower energy with increasing F- content, which indicated decrease of the Mn average oxidation state. Discharge capacity at first cycle was increased by decrease of the Mn average oxidation state with increasing F- content.

AB - Partially fluorinated lithium manganese spinel oxides (LiMn1.8Li0.1Ni0.1O4-xFx) were prepared by solid-state reaction. Relationship between the electronic structures of LiMn1.8Li0.1Ni0.1O4-xFx and their electrochemical properties were investigated. X-ray absorption near-edge structure (XANES) of Mn K-edge showed that the absorption edge shifted to lower energy with increasing F- content, which indicated decrease of the Mn average oxidation state. Discharge capacity at first cycle was increased by decrease of the Mn average oxidation state with increasing F- content.

KW - Electronic structure

KW - Fluorination

KW - LiMnO

KW - X-ray absorption spectroscopy (XAS)

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Electronic structures of partially fluorinated lithium manganese spinel oxides and their electrochemical properties

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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