Microstructure and Ionic Conductivity of Electrode/Electrolyte Interfaces in All Solid-State Lithium Secondary Batteries

• Project/Area Number: 21686066
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Structural/Functional materials
• Research Institution: Kyoto University
• Principal Investigator: KISHIDA Kyosuke Kyoto University, 工学研究科, 准教授 (20354178)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥27,950,000 (Direct Cost: ¥21,500,000、Indirect Cost: ¥6,450,000); Fiscal Year 2010: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
• Keywords: 全固体リチウム二次電池 / 固体 / 固体ヘテロ界面 / 透過電子顕微鏡法 / 界面物性 / 固体イオニクス / 格子欠陥 / 電子顕微鏡 / 全固体電池

Research Abstract

Microstructure and electrochemical properties of various lithium lanthanum titanate (LLT)/LiCoO_2 assemblies were investigated in order to establish some ways to improve battery performance of all solid-state lithium secondary batteries by controlling the interface microstructure. We have revealed that the battery performance can be drastically improved by introducing very thin amorphous layers at the interface and also by controlling the geometrical configuration of the layered structure of LiCoO_2 through the control of the surface orientation of the crystalline electrolytes.

Research Products

• [Journal Article] Microstructure and Electrochemical Properties of the HT-LiCoO_2/ La_(2/3-x)Li_3xTiO_3 Solid Electrolyte Interfaces (2010)
  • Author(s): K.Kishida, N.Wada, Y.Yamaguchi, H.Inui, Y.Iriyama, Z.Ogumi
  • Journal Title: Journal of Materials Research vol.25 Pages: 1583-1587
  • URL: http://hdl.handle.net/2433/126718
  • Peer Reviewed
• [Journal Article] 先進電池材料の欠陥構造解析-全固体リチウム二次電池材料を中心に- (2010)
  • Author(s): 岸田恭輔
  • Journal Title: 顕微鏡 vol.45, suppl.1 Pages: 55-58
• [Journal Article] Microstructure and Electrochemical Properties of the HT LiCoO_2/La_<2/3-x>Li_<3x> TiO_3 Solid Electrolyte Interfaces (2010)
  • Author(s): K.Kishida
  • Journal Title: Journal of Materials Research Volume: Vol.25 Pages: 1583-1587
  • Peer Reviewed
• [Journal Article] 先進電池材料の欠陥構造解析-全固体リチウム二次電池材料を中心に- (2010)
  • Author(s): 岸田恭輔
  • Journal Title: 顕微鏡 Volume: Vol.45,Suppl.1 Pages: 55-58
• [Journal Article] Electron diffraction of ABX_3 perovskites with both the layered ordering of A-cations and the tilting of BX_6 octahedra (2009)
  • Author(s): K.Kishida, K.Goto, H.Inui
  • Journal Title: Acta Crystallographica B vol 65 Pages: 405-415
  • URL: http://hdl.handle.net/2433/85255
  • Peer Reviewed
• [Journal Article] Electron diffraction of ABX_3 perovskites with both the layered ordering of A-cations and the tilting of BX_6 octahedra (2009)
  • Author(s): Kishida, K., Goto, K., Inui, H.
  • Journal Title: Acta Crystallographica B 65 Pages: 405-415
  • Peer Reviewed
• [Presentation] Crystal Structure Analysis of Li-ion Conducting Perovskites with Both Tilting of BX_6 Octahedra and Layered Ordering of A- cations by Transmission Electron Microscopy (2010)
  • Author(s): K.Kishida
  • Organizer: 2010 MRS Fall Meeting
  • Place of Presentation: Hynes Convention Center (Boston, MA, USA)
• [Presentation] 先進電池材料の欠陥構造解析-全固体リチウム二次電池材料を中心に- (2010)
  • Author(s): 岸田恭輔
  • Organizer: 日本顕微鏡学会第54回シンポジウム
  • Place of Presentation: 金沢市文化ホール(石川県) 招待講演
• [Presentation] 全固体リチウム二次電池材料の格子欠陥構造と電池特性 (2010)
  • Author(s): 岸田恭輔
  • Organizer: 日本金属学会春期(第146回)大会(
  • Place of Presentation: 筑波大学筑波キャンパス(茨城県) 基調講演
• [Presentation] 先進電池材料の欠陥構造解析-全固体リチウム二次電池材料を中心に- (2010)
  • Author(s): 岸田恭輔
  • Organizer: 日本顕微鏡学会第54回シンポジウム
  • Place of Presentation: 金沢市文化ホール(石川県)(招待講演)
• [Presentation] Crystal Structure Analysis of Li-ion Conducting Perovskites with Both Tilting of BX_6 Octahedra and Layered Ordering of A-cations by Transmission Electron Microscopy (2010)
  • Author(s): K.Kishida
  • Organizer: 2010 MRS Fall Meeting
  • Place of Presentation: Hynes Convention Center (Boston, MA, USA)
• [Presentation] 全固体リチウム二次電池材料の格子欠陥構造と電池特性(基調講演) (2010)
  • Author(s): 岸田恭輔
  • Organizer: 日本金属学会春期(第146回)大会
  • Place of Presentation: 筑波大学筑波キャンパス
• [Presentation] Improvement of Battery Performance by Controlling Electrode/ Electrolyte Interface Structure of All Solid-State Lithium Secondary Batteries (2009)
  • Author(s): K.Kishida
  • Organizer: 2009 MRS Fall Meeting
  • Place of Presentation: Hynes Convention Center (Boston, MA, USA)
• [Presentation] Electron diffraction of Li- conducting Perovskites with both tilting of BX_6 octahedra and layered ordering of A-cations (2009)
  • Author(s): K.Kishida
  • Organizer: 216th ECS Meeting
  • Place of Presentation: Austria Center Vienna (Vienna, Austria)
• [Presentation] Electron diffraction of Li-conducting Perovskites with both tilting of BX_6 octahedra and layered ordering of A-cations (2009)
  • Author(s): Kishida, K., Goto, K., Inui, H., Z.Ogumi
  • Organizer: 216th ECS Meeting
  • Place of Presentation: Vienna, Austria
• [Presentation] Improvement of Battery Performance by Controlling Electrode/Electrolyte Interface Structure of All Solid-State Lithium Secondary Batteries (2009)
  • Author(s): Kishida, K., Inui, H., Iriyama, Y., Z.Ogumi
  • Organizer: 2009 MRS Fall Meeting
  • Place of Presentation: Boston, MA, USA
• [Remarks] ホームページ等
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