Enhancement of charge-discharge functions via pricise control of active material/carbon nanocomposite structure

• Project/Area Number: 25288110
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Inorganic industrial materials
• Research Institution: Nagasaki University
• Principal Investigator: MORIGUCHI Isamu 長崎大学, 工学研究科, 教授 (40210158)
• Co-Investigator(Kenkyū-buntansha): URITA Koki 長崎大学, 工学研究科, 助教 (40567666)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000); Fiscal Year 2015: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2014: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2013: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
• Keywords: ナノ活物質 / ナノ多孔体 / 電気二重層キャパシタ / Ｌｉイオン電池 / ナノ多孔カーボン / ナノ結晶 / ナノ複合体 / Liイオン二次電池 / シリケート化合物 / シリコン / 多孔カーボン / 電気二重層 / Ｌｉイオン二次電池

Outline of Final Research Achievements

Some microporous carbons showed extremely high specific capacitance although the pore size was close to or smaller than the size of solvated ions in bulk solution. We have demonstrated that the enhancement of EDLC performance was caused by an accumulation of partially desolvated ions to form a compressed electric double-layer in the micropores.
We have also successfully developed novel nanocomposites of Li2MnSiO4/carbon and Si/nanoporous carbon, which show high capacity and good cycleabiliy. The relationship between the charge-discharge properties and nanocomposite structure was investigated in detail.

Research Products

• [Int'l Joint Research] University of California(米国)
• [Journal Article] Effect of carbon nanospace on charge-discharge properties of Si and SiOx nanoparticles-embedded nanoporous carbon (2015)
  • Author(s): Hikaru Tabuchi, Koki Urita, Isamu Moriguchi
  • Journal Title: Bulletin of the Chemical Society of Japan Volume: 88 Issue: 10 Pages: 1378-1384
  • DOI: 10.1246/bcsj.20150228
  • NAID: 130005102819
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Design of Nanoporous Materials with Optimal Sorption Capacity (2015)
  • Author(s): 4)Xuan Zhang, Koki Urita, Isamu Moriguchi, Daniel M. Tartakovsky
  • Journal Title: JOURNAL OF APPLIED PHYSICS Volume: 117 Issue: 24
  • DOI: 10.1063/1.4923057
  • NAID: 120006987024
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Charge-discharge Property of Si and SiOx Nanoparticles Produced in Regulated Carbon Nanospace (2015)
  • Author(s): Hikaru Tabuchi, Tsuyoshi Nakamura, Koki Urita, Isamu Moriguchi
  • Journal Title: Chemistry Letters Volume: 44 Issue: 1 Pages: 23-25
  • DOI: 10.1246/cl.140862
  • NAID: 130004693845
  • Peer Reviewed
• [Journal Article] Enhanced Electric Double-Layer Capacitance by Desolvation of Lithium Ions in Confined Nanospaces of Microporous Carbon (2014)
  • Author(s): Koki Urita, Nozomi Ide, Kosuke Isobe, Hiroshi Furukawa, Isamu Moriguchi
  • Journal Title: 雑誌名ACS Nano Volume: 8 Pages: 3614-3619
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Nanostructure-controlled Materials for Electrochemical Charging-discharging (2014)
  • Author(s): Isamu Moriguchi
  • Journal Title: Chemistry Letters Volume: 46 Issue: 6 Pages: 740-745
  • DOI: 10.1246/cl.140173
  • NAID: 130004868210
  • Peer Reviewed
• [Journal Article] Direct synthesis of novel homogeneous nanocomposites of Li2MnSiO4 and carbon as a potential Li-ion battery cathode materia (2013)
  • Author(s): Shintaro Aono, Taisuke Tsurudo, Koki Urita, Isamu Moriguchi
  • Journal Title: Chem. Commun. Volume: 49 Issue: 28 Pages: 2939-2941
  • DOI: 10.1039/c3cc40673c
  • Peer Reviewed
• [Presentation] リチウムイオン電池からナトリウムイオン電池へ (2016)
  • Author(s): 森口 勇
  • Organizer: NPOサンスイ特別講演会
  • Place of Presentation: ホテルセントヒル長崎（長崎県・長崎市）
  • Year and Date: 2016-02-25
  • Invited
• [Presentation] 蓄電デバイスの高性能化に向けた電極材料ナノ構造制御 (2016)
  • Author(s): 森口 勇
  • Organizer: 第54回セラミックス基礎科学討論会
  • Place of Presentation: アバンセ（佐賀県・佐賀市）
  • Year and Date: 2016-01-08
  • Invited
• [Presentation] NANOSCALE STRUCTURE CONTROL OF ELECTRODE MATERIALS FOR ENERGY STORAGE DEVICES (2015)
  • Author(s): Isamu Moriguchi
  • Organizer: Chikushi Forum of Environmental and Energy Science
  • Place of Presentation: 九州大学(福岡県・春日市）
  • Year and Date: 2015-10-09
  • Int'l Joint Research / Invited
• [Presentation] Li2MnSiO4ナノ結晶・カーボン複合体への異種元素ドーピング効果 (2015)
  • Author(s): 森口 勇，尾郷 航，柴田一平，瓜田幸幾
  • Organizer: 2015年電気化学秋季大会
  • Place of Presentation: 埼玉工業大学（埼玉県・深谷市）
  • Year and Date: 2015-09-11
• [Presentation] EDLC特性を向上させる炭素電極細孔の提案 (2015)
  • Author(s): 藤田浩介，瓜田幸幾，森口 勇
  • Organizer: 2015年電気化学秋季大会
  • Place of Presentation: 埼玉工業大学（埼玉県・深谷市）
  • Year and Date: 2015-09-11
• [Presentation] ナノ物質空間制御と電気化学機能 (2015)
  • Author(s): 森口 勇
  • Organizer: 触媒学会西日本支部第53回触媒研究懇談会
  • Place of Presentation: ＡＮＡクラウンホテル長崎グラバーヒル(長崎県・長崎市）
  • Year and Date: 2015-07-25
  • Invited
• [Presentation] ナノ物質空間制御による充放電機能の向上 (2015)
  • Author(s): 森口 勇
  • Organizer: 第52回化学関連支部合同九州大会
  • Place of Presentation: 北九州国際会議場(福岡県・北九州市）
  • Year and Date: 2015-06-27
  • Invited
• [Presentation] ＥDLC特性向上に向けたカーボン電極細孔構造の解明 (2015)
  • Author(s): 藤田浩介，瓜田幸幾，森口 勇
  • Organizer: 第52回化学関連支部合同九州大会
  • Place of Presentation: 北九州国際会議場(福岡県・北九州市）
  • Year and Date: 2015-06-27
• [Presentation] Mnシリケート系正極材料の異種元素ドーピングによる特性向上 (2014)
  • Author(s): 尾郷 航，鶴戸泰介，青野慎太郎，瓜田幸幾，森口 勇
  • Organizer: 第55回電池討論会
  • Place of Presentation: 国立京都国際会館（京都左京区）
  • Year and Date: 2014-11-21
• [Presentation] 制約されたナノ空間のEDLC特性への影響 (2014)
  • Author(s): 瓜田幸幾，井手望水，磯部晃輔，小西優子，吉田将之，森口 勇
  • Organizer: 2014年電気化学秋季大会
  • Place of Presentation: 北海道大学（札幌北区）
  • Year and Date: 2014-09-27
• [Presentation] Si系活物質の充放電特性へのカーボンナノ細孔構造の影響 (2014)
  • Author(s): 田渕 光，中村剛史，瓜田幸幾，森口 勇
  • Organizer: 2014年電気化学秋季大会
  • Place of Presentation: 北海道大学（札幌北区）
  • Year and Date: 2014-09-27
• [Presentation] Charge-Discharge Properties of Homogeneous Nanocomposites of Li2MnSiO4 and Carbon (2014)
  • Author(s): 1．Isamu Moriguchi, Wataru Ogo, Taisuke Tsurudo, Shintaro Aono, Koki Urita
  • Organizer: 65th Annual Meeting of the International Society of Electrochemistry
  • Place of Presentation: Swiss Tech Convention Center (Lausanne, Switzerland)
  • Year and Date: 2014-09-02
• [Presentation] ナノ多孔カーボンの創製と電気化学特性 (2014)
  • Author(s): 森口 勇
  • Organizer: 黒鉛化合物研究会
  • Place of Presentation: 長崎ＡＮＡホテル(長崎市）
  • Year and Date: 2014-06-16
  • Invited
• [Presentation] Homogeneous Nanocomposites of Li2MnSiO4 and Carbon as a Potential Li-ion Battery Cathode Material
  • Author(s): I. Moriguchi, S. Aono, T. Tsurudo, K. Urita
  • Organizer: 固体イオニクス国際会議SSI-19
  • Place of Presentation: 国立京都国際会館 (京都左京区）
• [Presentation] Nanostructured Electrode Materials for Energy Storage Devices
  • Author(s): I. Moriguchi
  • Organizer: Joint Seminor of KB-CSJ and BB-KCS
  • Place of Presentation: Pukyong National University (Korea, Busan)
  • Invited
• [Presentation] Li2MnSiO4・カーボンナノ複合体の充放電特性の向上
  • Author(s): 尾郷 航，青野慎太郎，鶴戸泰介，瓜田幸幾，森口 勇
  • Organizer: 2013年電気化学会秋季大会
  • Place of Presentation: 東京工業大学 (東京目黒区）
• [Presentation] Li2MnSiO4・カーボン均一ナノ複合体の充放電特性
  • Author(s): 鶴戸泰介，青野慎太郎，瓜田幸幾，森口 勇
  • Organizer: 第54回電池討論会
  • Place of Presentation: 大阪国際会議場 (大阪北区）
• [Remarks] 長崎大学学術研究リポジトリ
  • URL: http://naosite.lb.nagasaki-u.ac.jp
• [Remarks] 長崎大学学術研究リポジトリ
  • URL: http://naosite.lb.nagasaki-u.ac.jp/
• [Remarks] 長崎大学学術研究リポジトリ
  • URL: http://naosite.lb.nagasaki-u.ac.jp/dspace/