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Construction and dynamic property of the lithium in conductor having rock salt structure

Research Project

Project/Area Number 15550121
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Functional materials chemistry
Research InstitutionHiroshima University

Principal Investigator

YAMADA Koji  Hiroshima University, Graduate School of Science, Associate Prof., 大学院・理学研究科, 助教授 (10166704)

Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2004: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2003: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsLithium ion conductor / Rock salt structure / 7Li NMR / 115In NMR / Conductivity / Powder X-ray diffraction / Order-disorder phase transition / 固体NMR / 岩塩型イオン伝導体 / X繰回折 / ナトリウムイオン伝導体
Research Abstract

Li_3InBr_6 is one of the promising compounds for the construction of an all solid-state lithium ion battery. This compound undergoes a phase transition to a superionic phase having rock-salt structure and the conductivity is as high as 2^*10^<-2>Scm just above the superionic phase transition. In order to understand this high conductivity, firstly we tried to synthesize a series of similar compounds and searched new superionic conductors. Secondary we discussed the conduction mechanism by means of various measurements. Following points have become apparent from these experiments.
1.The ionic radius of In^<3+> is quite similar to that of Li^+. This fact is most important for the appearance of the superionic phase in the LiX-InX_3 system.
2.Na_3InCl_6 did not show high conductivity like Li_3InBr_6. However, we could determine the conduction path of the Na^+ by means of X-ray diffraction and NMR.
3.Li_3InBr_6 at the superionic phase was isomorphous with Li_3InCl_6, in which not only Li^+ but In^<3+> are disordered state.
4.^7LiNMR suggested that ca 15% of the Li^+ contributed to the conductivity just above the phase transition.
5.With increasing temperature the X-ray diffraction pattern changed gradually to a simple one which was characteristic to a rock salt structure. This suggests the appearance of the averaged structure as a result of the rapid cationic diffusion.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (24 results)

All 2005 2004 2003 Other

All Journal Article (18 results) Publications (6 results)

  • [Journal Article] Conduction Path of the Sodium ion in Na_3InCl_6 Studied by X-ray Diffraction and ^<23>Na and ^<115>In NMR2005

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionics 176

      Pages: 823-829

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Conduction path of the sodium ion in Na_3InCl_6 studied by X-Ray diffraction and ^<23>Na and ^<115>In NMR.2005

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionics 176

      Pages: 823-829

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Conduction path of the sodium ion in Na_3InCl_6 studied by X-Ray diffraction and ^<23>Na and ^<115>In NMR2005

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionics 176

      Pages: 823-829

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Structural phase transition of the two dimensional fluoride ion conductor KSn_2F_5 Studied by X-ray diffraction2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionics 167

      Pages: 301-307

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Two Dimensional Fluoride Ion Conductor RbSn_2F_5 Studied by Impedance Spectroscopy and ^<19>F, ^<119>Sn, and ^<87>Rb NMR2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Europ.Phys.B 40

      Pages: 167-176

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Li ion conductivity of solid electrolyte, Li_<3-2x>M_xInBr_6(M=Mg, Ca, St, Ba)2004

    • Author(s)
      Y.Tomita et al.
    • Journal Title

      Solid State Ionics 174

      Pages: 35-39

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Superprotonic Conductor CsH_2PO_4 Studied by ^1H, ^<31>P NMR and X-ray Diffraction2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionics 175

      Pages: 557-562

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Structural phase transition of the two dimensional fluoride ion conductor KSn_2F_5 Studied by X-ray diffraction.2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionics 167

      Pages: 301-307

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Two dimensional fluoride ion conductor RbSn_2F_5 studied by impedance spectroscopy and ^<19>F,^<119>Sn, and ^<87>Rb NMR.2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Europ.Phys.B 40

      Pages: 167-176

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Li ion conductivity of solid electrolyte, Li_<3-2x>M_xInBr_6 (M=Mg,Ca,St,Ba).2004

    • Author(s)
      Y.Tomita et al.
    • Journal Title

      Solid State Ionics 174

      Pages: 35-39

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Superprotonic conductor CsH_2PO_4 studies by ^1H, ^<31>P NMR and X-ray diffraction.2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionis 175

      Pages: 557-562

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The crystal structure and electric conductivity of new quaternary chalcogenide halide CuHgSI2004

    • Author(s)
      H.Morooka et al.
    • Journal Title

      J.Solid State Chem. 177

      Pages: 1401-1404

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Structural phase transition of the two dimensional fluoride ion conductor KSn_2F_5 studied by X-ray diffraction2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionics 167

      Pages: 301-307

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Two dimensional fluoride ion conductor RbSn_2F_5 studied by impedance spectroscopy and ^<19>F, ^<119>Sn, and ^<87>Rb NMR2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Europ.Phys.B 40

      Pages: 167-176

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Li ion conductivity of solid electrolyte, Li_<3-2x>M_xInBr_6(M=Mg,Ca,St,Ba)2004

    • Author(s)
      Y.Tomita et al.
    • Journal Title

      Solid State Ionics 174

      Pages: 35-39

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Superprotonic conductor CsH_2PO_4 studied by ^1H, ^<31>P NMR and X-ray diffraction2004

    • Author(s)
      K.Yamada et al.
    • Journal Title

      Solid State Ionics 175

      Pages: 557-562

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Fluoride ion dynamics and relaxation in KSn_2F_5 studied by ^<19>F NMR and impedance spectroscopy2003

    • Author(s)
      M.M.Ahmad et al.
    • Journal Title

      J.Phys.Condens.Matter 15

      Pages: 5341-5352

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Fluoride ion dynamics and relaxation in KSn_2F_5 studies by ^<19>F NMR and impedance spectroscopy.2003

    • Author(s)
      M.M.Ahmad et al.
    • Journal Title

      J.Phys.Condens.Matter. 15

      Pages: 5341-5352

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] M.Kumara et al.: "Temperature dependence of ^<19>F NMR and ion transport parameters of fluoride ion conductors SnF_2-PbF_2 and 2SnF_2-NH_4F prepared by mechanical milling"phys.stat.sol.(b). 239. 436-438 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.M.Ahmad et al.: "Fluoride ion dynamics and relaxation in KSn_2F_5 studies by ^<19>F NMR and impedance spectroscopy"J.Phys.Condens.Matter. 15. 5341-5352 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Yamada et al.: "Structural phase transition of the two dimensional fluoride ion conductor KSn_2F_5 Studied by X-ray diffraction"Solid State Ionics. (in press). (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.S.Sekhon et al.: "On the ion diffusive motion in some fluoride doped polymer electrolytes"Chem.Phys.Lett.. 379. 466-470 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.Moro'oka: "Crystal Structure of High Temperature Phase and Ionic Conductivity Mechanism of CuHgSX (X=Cl, Br)"Bull.Chem.Soc.Jap.. 76. 2111-2115 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] M.M.Ahmad: "Ionic conduction and relaxation in KSn_2F_5 fluoride ion conductor"Physica B. 339. 94-100 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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