Development of the divalent cation conducting solid electrolytes

• Project/Area Number: 24750202
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic industrial materials
• Research Institution: Osaka University
• Principal Investigator: TAMURA Shinji 大阪大学, 工学(系)研究科(研究院), 講師 (80379122)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: イオン伝導体 / 固体電解質 / 2価イオン / マグネシウム / ストロンチウム / マグネシウムイオン / ナシコン型構造

Research Abstract

In this study, we aimed to develop the novel divalent cation conducting solid electrolytes with three dimensional network structure, and we have demonstrated that the NASICON type (MgxHf1-x)4/(4-2x)Nb(PO4)3 and (Sr0.05Hf0.95)4/3.9(Nb1-yWy)5/(5+y)(PO4)3 solids showed the Mg2+ and Sr2+ cation conduction. Furthermore, the (Mg0.1Hf0.9)4/3.8Nb(PO4)3 solid was revealed to have the highest Mg2+ conductivity below 400 oC.

Research Products

• [Journal Article] Divalent Sr^2+ Cation Conducting Solid Electrolyte with NASICON-type Structure
  • Author(s): S. Tamura, Y. Okada, and N. Imanaka
  • Journal Title: Electrochemistry Volume: (in press)
  • NAID: 130004697477
• [Presentation] 二価のマグネシウムイオンを伝導種とする新規な固体電解質 (2014)
  • Author(s): 山根愛未・荒木謙一郎・田村真治・今中信人
  • Organizer: 第16回化学電池材料研究会ミーティング
  • Place of Presentation: 東京
• [Presentation] 二価のマグネシウムイオンを伝導種とする新規な固体電解質 (2014)
  • Author(s): 山根愛未、荒木謙一郎、田村真治、今中信人
  • Organizer: 第16回化学電池材料研究会ミーティング
  • Place of Presentation: 日本化学会会館
• [Presentation] Divalent Sr2+ cation conducting solid electrolyte (2013)
  • Author(s): S. Tamura, Y. Okada, and N. Imanaka
  • Organizer: 19th International Conference on Solid State Ionics
  • Place of Presentation: 京都国際会館
• [Presentation] 2価のストロンチウムイオン伝導性固体電解質 (2012)
  • Author(s): 岡田吉浩・田村真治・今中信人
  • Organizer: 第38回固体イオニクス討論会
  • Place of Presentation: 京都
• [Presentation] 2価のストロンチウムイオン伝導性固体電解質 (2012)
  • Author(s): 岡田吉浩、田村真治、今中信人
  • Organizer: 第38回固体イオニクス討論会
  • Place of Presentation: 京都テルサ