Decoupling of ionic transport by hydrogen bonds

• Project/Area Number: 25620008
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Physical chemistry
• Research Institution: Tohoku University
• Principal Investigator: KAWAMURA Junichi 東北大学, 多元物質科学研究所, 教授 (50142683)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: リチウム電池 / 過冷却液体 / ガラス転移 / デカップリング / 水素結合 / 高分子固体電解質 / イオン伝導 / NMR / 拡散係数 / リチウムイオン電池 / デカップル / 超イオン導電体 / トレハロース

Outline of Final Research Achievements

Ionic transport in organic liquids containing lithium halides is measured by impedance spectroscopy and pulsed field gradient nuclear magnetic resonance (pfg-NMR) in the supercooled liquid and glassy states. Effect of the hydrogen-bond is mainly investigated. Lithium ion is usually coordinated strongly by oxygen sites in organic or water molecules which inhibits the translational motion of lithium ions in glassy state. However when appropriate amount of hydrogen bonds are introduced between the oxygen sites the remaining lithium ions start to move and contribute to their ionic conduction. This effect is typically seen in treharose-water-lithium iodide system, however is also seen in other liquid and polymers containing hydrogen bonds.

Research Products

• [Journal Article] A study on polymer blend electrolyte based on PVA/PVP with proton salt (2014)
  • Author(s): N. Rajeswari, S. Selvasekarapandian, C. Sanjeeviraja, J. Kawamura, S. Asath Bahadur
  • Journal Title: Polymer Bulletin Volume: 71 Issue: 8 Pages: 1061-1080
  • DOI: 10.1007/s11581-012-0838-1
  • Peer Reviewed
• [Journal Article] Nuclear Magnetic Resonance Study of Lithium-Ion Batteries (2014)
  • Author(s): Miwa Murakami, Yoshiki Iwai, Junichi Kawamura
  • Journal Title: Nanoscale Technology for Advanced Lithium Batteries Nanostructure Science and Technology, Springer Volume: 1 Pages: 143-165
  • DOI: 10.1007/978-1-4614-8675-6_12
  • ISBN: 9781461486749, 9781461486756
• [Journal Article] Fabrication of Lithium Polymer Battery Based on PVA: PVP: Li X (X=ClO4-, NO3-) Polymer Blend Electrolyte (2014)
  • Author(s): N. Rajeswari, S. Selvasekarapandian, S. Asath Bahadur, J. Kawamura and S. R. S. Prabaharan
  • Journal Title: Proceedings of the 14th Asian Conference on Solid State Ionics (ACSSI 2014) Volume: 1 Pages: 63-71
  • DOI: 10.3850/978-981-09-1137-9_087
• [Journal Article] Study of diffusion coefficient of anhydrous trehalose glasses by using PFG-NMR spectroscopy (2013)
  • Author(s): Hyun-Joung Kwon, Reiji Takekawa, Junichi Kawamura and Michio Tokuyama
  • Journal Title: AIP Conf. Proc. Volume: 1518 Pages: 503-506
  • DOI: 10.1063/1.4794624
  • Peer Reviewed
• [Journal Article] Structural, vibrational, thermal, and electrical properties of PVA/PVP biodegradable polymer blend electrolyte with CH3COONH4 (2013)
  • Author(s): N. Rajeswari, S. Selvasekarapandian, S. Karthikeyan, C. Sanjeeviraja, Y. Iwai, J. Kawamura
  • Journal Title: Ionics Volume: 19 Issue: 5 Pages: 1105-1113
  • DOI: 10.1007/s00289-014-1111-8
  • Peer Reviewed
• [Journal Article] Proton-Conducting Polymer Electrolyte Based on PVA-PAN Blend Polymer Doped with NH4NO3 (2013)
  • Author(s): S. Sivadevi, S. Selvasekarapandian, S. Karthikeyan, N. Vijaya, F. Kingslin Mary Genova, C. Sanjeeviraja, H. Nithya, Iwai Junichi Kawamura
  • Journal Title: Int. J. Electroact. Mater. Volume: 1 Pages: 64-70
  • Peer Reviewed
• [Journal Article] Structural, Thermal, Morphological and Electrical Conductivity Analysis of Proton Conducting Tri Block Copolymer P(VdCl-Co-AN-Co-MMA) Based Electrolytes (2013)
  • Author(s): D. Inbavalli S. Selvasekarapandian, C. Sanjeeviraja, R. Baskaran, Junichi Kawamura, Yoshitake Masuda
  • Journal Title: Int. J. Electroact. Mater Volume: 1 Pages: 71-78
  • Peer Reviewed
• [Book] 14th Asian Conference on Solid State Ionics; Solid State Ionics from Lab to Fab (2014)
  • Author(s): S. Adams, J. Kawamura
  • Total Pages: 762
  • Publisher: Research Publishing, Singapore