Structure analyses of Fe-substituted Li2S-based positive electrode materials for Li-S batteries

Tomonari Takeuchi; Hiroyuki Kageyama; Noboru Taguchi; Koji Nakanishi; Tomoya Kawaguchi; Koji Ohara; Katsutoshi Fukuda; Atsushi Sakuda; Toshiaki Ohta; Toshiharu Fukunaga; Hikari Sakaebe; Hironori Kobayashi; Eiichiro Matsubara

doi:10.1016/j.ssi.2018.03.028

Structure analyses of Fe-substituted Li₂S-based positive electrode materials for Li-S batteries

Tomonari Takeuchi, Hiroyuki Kageyama, Noboru Taguchi, Koji Nakanishi, Tomoya Kawaguchi, Koji Ohara, Katsutoshi Fukuda, Atsushi Sakuda, Toshiaki Ohta, Toshiharu Fukunaga, Hikari Sakaebe, Hironori Kobayashi, Eiichiro Matsubara

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

9 Citations (Scopus)

Abstract

The structure of Fe-substituted Li₂S-based positive electrode material Li₈FeS₅ was analyzed using high-energy X-ray total scattering measurements. Pair distribution function (PDF) analyses indicated that the mechanically milled Li₈FeS₅ sample could best be described as having an anti-fluorite structure in which Fe ions partially occupy Li sites in the Fm3¯m unit cell. The electrochemical properties of a cell utilizing Li₈FeS₅ as the positive electrode were also consistent with this structural model.

Original language	English
Pages (from-to)	387-391
Number of pages	5
Journal	Solid State Ionics
Volume	320
DOIs	https://doi.org/10.1016/j.ssi.2018.03.028
Publication status	Published - Jul 2018
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1016/j.ssi.2018.03.028

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title = "Structure analyses of Fe-substituted Li2S-based positive electrode materials for Li-S batteries",

abstract = "The structure of Fe-substituted Li2S-based positive electrode material Li8FeS5 was analyzed using high-energy X-ray total scattering measurements. Pair distribution function (PDF) analyses indicated that the mechanically milled Li8FeS5 sample could best be described as having an anti-fluorite structure in which Fe ions partially occupy Li sites in the Fm3¯m unit cell. The electrochemical properties of a cell utilizing Li8FeS5 as the positive electrode were also consistent with this structural model.",

author = "Tomonari Takeuchi and Hiroyuki Kageyama and Noboru Taguchi and Koji Nakanishi and Tomoya Kawaguchi and Koji Ohara and Katsutoshi Fukuda and Atsushi Sakuda and Toshiaki Ohta and Toshiharu Fukunaga and Hikari Sakaebe and Hironori Kobayashi and Eiichiro Matsubara",

note = "Funding Information: This work was financially supported partly by R&D projects for Li batteries RISING and RISING2 from METI and NEDO. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = jul,

doi = "10.1016/j.ssi.2018.03.028",

language = "English",

volume = "320",

pages = "387--391",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

}

TY - JOUR

T1 - Structure analyses of Fe-substituted Li2S-based positive electrode materials for Li-S batteries

AU - Takeuchi, Tomonari

AU - Kageyama, Hiroyuki

AU - Taguchi, Noboru

AU - Nakanishi, Koji

AU - Kawaguchi, Tomoya

AU - Ohara, Koji

AU - Fukuda, Katsutoshi

AU - Sakuda, Atsushi

AU - Ohta, Toshiaki

AU - Fukunaga, Toshiharu

AU - Sakaebe, Hikari

AU - Kobayashi, Hironori

AU - Matsubara, Eiichiro

PY - 2018/7

Y1 - 2018/7

N2 - The structure of Fe-substituted Li2S-based positive electrode material Li8FeS5 was analyzed using high-energy X-ray total scattering measurements. Pair distribution function (PDF) analyses indicated that the mechanically milled Li8FeS5 sample could best be described as having an anti-fluorite structure in which Fe ions partially occupy Li sites in the Fm3¯m unit cell. The electrochemical properties of a cell utilizing Li8FeS5 as the positive electrode were also consistent with this structural model.

AB - The structure of Fe-substituted Li2S-based positive electrode material Li8FeS5 was analyzed using high-energy X-ray total scattering measurements. Pair distribution function (PDF) analyses indicated that the mechanically milled Li8FeS5 sample could best be described as having an anti-fluorite structure in which Fe ions partially occupy Li sites in the Fm3¯m unit cell. The electrochemical properties of a cell utilizing Li8FeS5 as the positive electrode were also consistent with this structural model.

UR - http://www.scopus.com/inward/record.url?scp=85044760394&partnerID=8YFLogxK

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U2 - 10.1016/j.ssi.2018.03.028

DO - 10.1016/j.ssi.2018.03.028

M3 - Article

AN - SCOPUS:85044760394

SN - 0167-2738

VL - 320

SP - 387

EP - 391

JO - Solid State Ionics

JF - Solid State Ionics

ER -

Structure analyses of Fe-substituted Li₂S-based positive electrode materials for Li-S batteries

Abstract

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