In Situ Visualization of Lithium Ion Intercalation using Differential Optical Microscopy with Atomic Layer Resolution

• Project/Area Number: 25286011
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: Tohoku University
• Principal Investigator: ITAYA KINGO 東北大学, 多元物質科学研究所, 産学官連携研究員 (40125498)
• Co-Investigator(Kenkyū-buntansha): ITOH TAKASHI 東北大学, 学際科学フロンティア研究所, 准教授 (40302187) ; YOSHIMOTO SOICHIRO 熊本大学, 大学院先導機構, 准教授 (30323067)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000); Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2014: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2013: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
• Keywords: 電気化学 / 微分干渉顕微鏡 / 共焦点顕微鏡 / ナノ材料 / 表面・界面物性

Outline of Final Research Achievements

Atomic-level visualization of the intercalation of layered materials, such as metal chalcogenides, is of paramount importance in the development of high-performance batteries. In situ images of the dynamic intercalation of Li ions into MoS2 single-crystal electrodes were acquired for the first time, under potential control, with the use of a technique combining laser confocal microscopy with differential interference microscopy.

Research Products

• [Journal Article] In Situ Visualization of Lithium Ion Intercalation into MoS2 Single Crystals using Differential Optical Microscopy with Atomic Layer Resolution (2016)
  • Author(s): Mukkannan Azhagurajan, Tetsuya Kajita, Takashi Itoh, Youn-Geun Kim, and Kingo Itaya
  • Journal Title: J. Am. Chem. Soc. Volume: 138 Issue: 10 Pages: 3355-3361
  • DOI: 10.1021/jacs.5b11849
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Preparation and Characterization of Ultraflat Pt Facets by Atom-Height-Resolved Differential Optical Microscopy (2015)
  • Author(s): M. Azhagurajan, R.Wen, Y.G. Kim, T. Itoh, K. Sashikata and K. Itaya
  • Journal Title: Surface Science Volume: 631 Pages: 57-62
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] In Situ Surface-enhanced Raman Analysis of Water Libration on Silver Electrode in Various Alkali Hydroxide Aqueous Solutions (2014)
  • Author(s): Tetsuya Kajita and Takashi Itoh
  • Journal Title: Electrochemistry Volume: 82 Pages: 396-400
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] In Situ Surface-enhanced Raman Analysis of Water Libration on Silver Electrode in Various Alkali Hydroxide Aqueous Solutions (2014)
  • Author(s): Takashi ITOH, Tetsuya KAJITA, Toshiteru MAEDA and Atsuo Kasuya
  • Journal Title: Electrochemistry Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Direct Evidence of Homoepitaxial Growth in the Electrodeposition of Au Observed by Ultra-High Resolution Differential Optical Microscopy (2013)
  • Author(s): M. Azhagurajan, R. Wen, A. Lahiri, Y. G. Kim, T. Itoh, and K. Itaya
  • Journal Title: Journal of the Electrochemical Society Volume: 160
  • Peer Reviewed
• [Presentation] Direct Observation of Pt Dissolution for Fuel Cell using LCM-DIM with Atomic Level (2014)
  • Author(s): Mukkannan Azhagurajan, Takashi Itoh and Kingo Itaya
  • Organizer: 2014年電気化学秋季大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2014-09-27 – 2014-09-28
• [Book] Lecture Notes in Energy 32, Energy Storage in Batteries and Fuel Cells" in solar to Chemical Energy Conversion; Theory and Application (2016)
  • Author(s): Tetsuya Kajita and Takashi Itoh
  • Total Pages: 17
  • Publisher: Willy
• [Book] LiBの高容量・高耐久化のための電極-電解液（質）の界面制御技術と解析・評価法「ラマン分光法－リチウムイオン電池－ (2015)
  • Author(s): 伊藤 隆（分担執筆）
  • Publisher: 情報技術協会
• [Book] 電気化学/インピーダンス測定のノウハウと正しいデータ解釈「ラマン分光法－リチウムイオン電池－」第3章、第1節 (2013)
  • Author(s): 伊藤隆（分担執筆）他
  • Total Pages: 315
  • Publisher: 情報技術協会
• [Book] IR分析「LiCoO2リチウム電池正極材料のラマン分光測定」第20章、第2節 (2013)
  • Author(s): 伊藤隆（分担執筆）他
  • Total Pages: 785
  • Publisher: 情報技術協会
• [Book] IR分析「リチウムイオン電池用負極材料のラマン分光測定」第20章、第3節 (2013)
  • Author(s): 伊藤隆（分担執筆）他
  • Total Pages: 785
  • Publisher: 情報技術協会
• [Book] In-situ測定・分析テクニックおよび最新計測「リチウムイオン二次電池構成要素のIn situラマン測定」第3章、第1節 (2013)
  • Author(s): 伊藤隆（分担執筆）他
  • Total Pages: 632
  • Publisher: 情報機構
• [Book] In-situ測定・分析テクニックおよび最新計測「各種測定法のIn-situ測定時のポイント、光散乱法／ラマン分光法によるIn-situ測定方法とポイント」第1章、第7節 (2013)
  • Author(s): 伊藤隆（分担執筆）他
  • Total Pages: 632
  • Publisher: 情報機構