Elucidation of mass transport and material degradation mechanisms in PEFC by advanced diagnostics using magnetic resonance imaging and laser techniques

• Project/Area Number: 18206023
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: HIRAI Shuichiro Tokyo Institute of Technology, 炭素循環エネルギー研究センター, 教授 (10173204)
• Co-Investigator(Kenkyū-buntansha): TSUSHIMA Syoji 東京工業大学, 炭素循環エネルギー研究センター, 准教授 (30323794) ; SUEKANE Tetsuya 徳島大学, 大学院・ソシオテクノサイエンス研究部, 教授 (30262314) ; UEMURA Suguru 東京工業大学, 大学院・理工学研究科, 助教 (70515163)
• Project Period (FY): 2006 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥48,880,000 (Direct Cost: ¥37,600,000、Indirect Cost: ¥11,280,000); Fiscal Year 2009: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2008: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000); Fiscal Year 2007: ¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000); Fiscal Year 2006: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
• Keywords: 燃料電池 / 水分輸送 / 磁気共鳴イメージング / レーザ計測 / 物質輸送 / 磁気共鳴診断(MRI)

Research Abstract

In this project, elucidation of mass transport and material degradation mechanisms in polymer electrolyte fuel cells (PEFCs) by advanced diagnostics using magnetic resonance imaging (MRI) and laser techniques were performed. We developed an nuclear-labeing MRI technique to investigate water transport with and without micro porous layer in PEFCs. We also developed a visualization system of gas flow behavior in PEFC by optical absorption of Ozone. The system applied ultra violet light absorption that is characteristic of Ozone to unseeded velocity measurement and captured the shift of light absorption point. A penetration flow through porous gas diffusion layer was experimentally identified in an operating PEFC.

Research Products

• [Journal Article] Effect of Micro Porous Layer on Membrane Hydration Path under Low Humidity Operation of PEMFC (2009)
  • Author(s): Y. Fujii, S. Tsushima, S. Hirai
  • Journal Title: ECS Transactions 25(1) Pages: 1783-1789
  • Peer Reviewed
• [Journal Article] Effect of Micro Porous Layer on Membrane Hydration Path under Low Humidity Operation of PEMFC (2009)
  • Author(s): Y.Fujii, S.Tsushima, S.Hirai
  • Journal Title: ECS Transactions 25(1) Pages: 1783-1789
  • Peer Reviewed
• [Journal Article] Water Transport and Degradation Analysis in PEMFC by in-situ MRI Visualization (2008)
  • Author(s): S. Hirai, S. Tsushima
  • Journal Title: ECS Transactions 16(2) Pages: 1337-1343
  • Peer Reviewed
• [Journal Article] Visualization of Membrane Hydration Path in an Operating PEMFC by Nuclei-Labeling MRI (2007)
  • Author(s): T. Kotaka, S. Tsushima, S. Hirai
  • Journal Title: ECS Transactions 11 Pages: 445-450
  • Peer Reviewed
• [Journal Article] PEFC水分輸送解析のためのMRI計測技術の高度化
  • Author(s): 津島将司, 南條崇徳, 小高敏和, 吉田瑞穂, 平井秀一郎
  • Journal Title: 第14回燃料電池シンポジウム(2007年5月発表決定)
• [Journal Article] 水分子核ラベリングMRIによりPEFC電解質膜内水分輸送に及ぼす生成・加湿の影響の分離
  • Author(s): 小高敏和, 津島将司, 平井秀一郎
  • Journal Title: 第44回伝熱シンポジウム(2007年5月発表決定)
• [Presentation] オゾン光吸収による燃料電池流路内非シード型速度計測 (2010)
  • Author(s): 野田豊人, 津島将司, 平井秀一郎
  • Organizer: 第47回伝熱シンポジウム
  • Place of Presentation: 札幌
• [Presentation] Effect of Micro Porous Layer on Membrane Hydration Path under Low Humidity Operation of PEMFC (2009)
  • Author(s): Y.Fujii, S.Tsushima, S.Hirai
  • Organizer: 216th meeting of Electrochemical Society
  • Place of Presentation: ウィーン,オーストリア
  • Year and Date: 2009-10-08
• [Presentation] Mass Transport Phenomenon on Fuel Cell and CO2 Underground Sequestration (2009)
  • Author(s): S.HIRAI, S.TSUSHIMA
  • Organizer: 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics
  • Place of Presentation: 京都
  • Year and Date: 2009-07-01
• [Presentation] 核ラベリング計測を用いたPEFC電解質膜内水分輸送解析 (2009)
  • Author(s): 藤井義喜, 津島将司, 平井秀一郎
  • Organizer: 第46回伝熱シンポジウム
  • Place of Presentation: 京都
  • Year and Date: 2009-06-02
• [Presentation] 核ラベリング計測をいたPEFC電解質膜内水分輸送解析 (2009)
  • Author(s): 藤井義喜, 津島将司, 平井秀一郎
  • Organizer: 第46回伝熱シンポジウム
  • Place of Presentation: 京都
  • Year and Date: 2009-06-02
• [Presentation] MRIと軟X線による解析 (2009)
  • Author(s): 平井秀一郎
  • Organizer: 電気化学会燃料電池研究会 第103回セミナー
  • Place of Presentation: 東京
  • Year and Date: 2009-04-15
• [Presentation] Water Transport and Degradation Analysis in PEMFC by in-situ MRI Visualization (2008)
  • Author(s): S. Hirai, S. Tsushima
  • Organizer: 214th meeting of Electrochemical Society
  • Place of Presentation: ハワイ, 米国
  • Year and Date: 2008-10-15
• [Presentation] PEFC発電特性と水分輸送に及ぼすミクロ多孔質層の効果 (2008)
  • Author(s): 津島将司, 小高敏和, 平井秀一郎
  • Organizer: 第45回伝熱シンポジウム
  • Place of Presentation: つくば
  • Year and Date: 2008-05-21
• [Presentation] MRI計測技術の高度化によるPEFC水分輸送・劣化解析 (2008)
  • Author(s): 津島将司, 小高敏和, 吉田瑞穂, 宮岡陽介, 平井秀一郎
  • Organizer: 第15回燃料電池シンポジウム
  • Place of Presentation: 東京
  • Year and Date: 2008-05-15
• [Presentation] 核ラベリングMRIを用いた発電時におけるPEFC電解質膜内水分パスの可視化 (2007)
  • Author(s): 小高敏和, 津島将司, 平井秀一郎
  • Organizer: 第48回電池討論会
  • Place of Presentation: 福岡
  • Year and Date: 2007-11-15
• [Remarks] Tokyo Tech International vol.8, 2008のResearchReviewに掲載された