Cubic rocksalt Li2SnS3 and a solid solution with Li3NbS4 prepared by mechanochemical synthesis

Atsushi Sakuda; Kentaro Kuratani; Tomonari Takeuchi; Hisao Kiuchi; Tomoya Kawaguchi; Masahiro Shikano; Hikari Sakaebe; Hironori Kobayashi

doi:10.5796/electrochemistry.85.580

Cubic rocksalt Li₂SnS₃ and a solid solution with Li₃NbS₄ prepared by mechanochemical synthesis

Atsushi Sakuda, Kentaro Kuratani, Tomonari Takeuchi, Hisao Kiuchi, Tomoya Kawaguchi, Masahiro Shikano, Hikari Sakaebe, Hironori Kobayashi

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

7 Citations (Scopus)

Abstract

Cubic Li₂SnS₃ with NaCl structure and the solid solution with Li3NbS4 were developed by mechanochemical synthesis. Cubic Li₂SnS₃ is a metastable phase, and the previously reported monoclinic Li₂SnS₃ is a stable phase. Cubic Li₂SnS₃ acts as an ionic conductor, and the solid solution of Li₃NbS₄-Li₂SnS₃ can be used as an electrode active material in lithium secondary batteries. Li_2.933Nb_0.8Sn_0.267S₄ and Li_2.857Nb_0.571Sn_0.571S₄ shows large reversible capacities of 318 and 286mAhg^-1, respectively. The capacity of these materials depends less on the niobium content than on the electrical conductivity. The reversible capacity in the 2-V region is mainly attributable to redox reactions involving rather sulfur than tin.

Original language	English
Pages (from-to)	580-584
Number of pages	5
Journal	Electrochemistry
Volume	85
Issue number	9
DOIs	https://doi.org/10.5796/electrochemistry.85.580
Publication status	Published - 2017
Externally published	Yes

Keywords

Electrode
Mechanochemical synthesis
Sulfide
Tin

ASJC Scopus subject areas

Electrochemistry

Access to Document

10.5796/electrochemistry.85.580

Cite this

@article{e1d1cbcc92de4404852afbfa81dbcc26,

title = "Cubic rocksalt Li2SnS3 and a solid solution with Li3NbS4 prepared by mechanochemical synthesis",

abstract = "Cubic Li2SnS3 with NaCl structure and the solid solution with Li3NbS4 were developed by mechanochemical synthesis. Cubic Li2SnS3 is a metastable phase, and the previously reported monoclinic Li2SnS3 is a stable phase. Cubic Li2SnS3 acts as an ionic conductor, and the solid solution of Li3NbS4-Li2SnS3 can be used as an electrode active material in lithium secondary batteries. Li2.933Nb0.8Sn0.267S4 and Li2.857Nb0.571Sn0.571S4 shows large reversible capacities of 318 and 286mAhg-1, respectively. The capacity of these materials depends less on the niobium content than on the electrical conductivity. The reversible capacity in the 2-V region is mainly attributable to redox reactions involving rather sulfur than tin.",

keywords = "Electrode, Mechanochemical synthesis, Sulfide, Tin",

author = "Atsushi Sakuda and Kentaro Kuratani and Tomonari Takeuchi and Hisao Kiuchi and Tomoya Kawaguchi and Masahiro Shikano and Hikari Sakaebe and Hironori Kobayashi",

note = "Funding Information: This work was mainly supported by the RISINGII projects of the New Energy and Industrial Technology Development Organization (NEDO), Japan. The synchrotron radiation experiments were performed at the BL28XU of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2016A7601 and 2016A7606). Publisher Copyright: {\textcopyright} The Electrochemical Society of Japan, All rights reserved.",

year = "2017",

doi = "10.5796/electrochemistry.85.580",

language = "English",

volume = "85",

pages = "580--584",

journal = "Electrochemistry",

issn = "1344-3542",

publisher = "Electrochemical Society of Japan",

number = "9",

}

TY - JOUR

T1 - Cubic rocksalt Li2SnS3 and a solid solution with Li3NbS4 prepared by mechanochemical synthesis

AU - Sakuda, Atsushi

AU - Kuratani, Kentaro

AU - Takeuchi, Tomonari

AU - Kiuchi, Hisao

AU - Kawaguchi, Tomoya

AU - Shikano, Masahiro

AU - Sakaebe, Hikari

AU - Kobayashi, Hironori

N1 - Funding Information: This work was mainly supported by the RISINGII projects of the New Energy and Industrial Technology Development Organization (NEDO), Japan. The synchrotron radiation experiments were performed at the BL28XU of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2016A7601 and 2016A7606). Publisher Copyright: © The Electrochemical Society of Japan, All rights reserved.

PY - 2017

Y1 - 2017

N2 - Cubic Li2SnS3 with NaCl structure and the solid solution with Li3NbS4 were developed by mechanochemical synthesis. Cubic Li2SnS3 is a metastable phase, and the previously reported monoclinic Li2SnS3 is a stable phase. Cubic Li2SnS3 acts as an ionic conductor, and the solid solution of Li3NbS4-Li2SnS3 can be used as an electrode active material in lithium secondary batteries. Li2.933Nb0.8Sn0.267S4 and Li2.857Nb0.571Sn0.571S4 shows large reversible capacities of 318 and 286mAhg-1, respectively. The capacity of these materials depends less on the niobium content than on the electrical conductivity. The reversible capacity in the 2-V region is mainly attributable to redox reactions involving rather sulfur than tin.

AB - Cubic Li2SnS3 with NaCl structure and the solid solution with Li3NbS4 were developed by mechanochemical synthesis. Cubic Li2SnS3 is a metastable phase, and the previously reported monoclinic Li2SnS3 is a stable phase. Cubic Li2SnS3 acts as an ionic conductor, and the solid solution of Li3NbS4-Li2SnS3 can be used as an electrode active material in lithium secondary batteries. Li2.933Nb0.8Sn0.267S4 and Li2.857Nb0.571Sn0.571S4 shows large reversible capacities of 318 and 286mAhg-1, respectively. The capacity of these materials depends less on the niobium content than on the electrical conductivity. The reversible capacity in the 2-V region is mainly attributable to redox reactions involving rather sulfur than tin.

KW - Electrode

KW - Mechanochemical synthesis

KW - Sulfide

KW - Tin

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