成果報告書詳細
管理番号20110000001679
タイトル*平成20年度中間年報 固体高分子型燃料電池用ポリマー電解質に関する調査研究
公開日2011/11/9
報告書年度2008 - 2008
委託先名社団法人高分子学会
プロジェクト番号Q05016
部署名燃料電池・水素技術開発部
和文要約和文要約等以下本編抜粋:1.調査研究の事業内容
燃料電池自動車 (FCV) の商用化には、ポリマー電解質膜のさらなる性能向上、長寿命化、低コスト化が必要である。FCV の一般供用 (目標2015 年) までに、~30℃で起動し、100℃以上での作動、低加湿運転(RH30%) が可能で、寿命5000時間 (起動停止60000 回) に耐えるスタックを、数千円/kW 以下で製造することが目標と言われている。実現にはコスト以外の課題の克服が必要であり、最重要課題と認識されている。そのキーマテリアルとなるポリマー電解質膜を、世界の高分子科学を先導するわが国高分子科学者を結集して学術的アプローチも含め、開発に挑戦し、わが国独自の材料技術として確立することは最速、最重要な課題である。
ポリマー電解質に関する反応・劣化機構解析などの基礎・基盤的研究の推進により、フッ素系電解質膜の劣化機構解析は着実に進展している。MEA・スタック技術にその知見が反映され、性能・寿命が着実に向上した結果、高温低加湿運転など一部の要求仕様を除き、ほぼ実用化のレベルに達している。しかし、高温低加湿下での運転、劣化機構の解明には電解質膜の画期的な改良または新規な膜への置き換えが必要である。このような現状認識のもと、プロトン伝導特性・材料劣化機構解析の知見などを、高温低加湿での性能・寿命実現を図る視点に立って、新しいポリマー電解質の材料開発にフィードバックすることが課題となっている。
英文要約Summary of Interim Report for
Investigation on the New Polymer Electrolytes for
Polymer Electrolyte Fuel Cells
The Society of Polymer Science, Japan
1. Purpose of the Investigation
Commercialization of fuel cells for electric vehicles requires the further improvement in the performance
of polymer electrolyte membranes (PEM), extending the life-span and reducing the cost. The principal target
in this research field is to fabricate a stack that is capable of electricity generation which is started
at reduced temperatures as low as -30 oC and is maintained at elevated temperatures higher than 100 oC and
at low humidity (RH 30%), characterized by a long life of more than 5000 h (i.e. 60000 startup halts), and
manufactured with a small cost which should be lower than several thousands JPY per kW power. Subjects other
than cost need to be conquered for realization of this target, and it is currently recognized as the problem
of the utmost importance. Concentrating the Japanese polymer scientists, who are leading the many aspects of
polymer science in the world, to the field of polymer electrolytes in order to foster scientific approach
especially from a basic viewpoint is indeed a pertinent action to develop the key material as the made-in-Japan
technology that contribute to the world-wide energy concern in this 21st century.
The present investigation aims at clarifying the proton transfer mechanism of PEMs and their membrane
properties in relation to the polymer structure at a molecule level, to present the guiding principles and
action plan in the near future. The research also include the detailed discussion and analysis on the
competitive power of precision synthesis in Japan, particularly in the research area of PEM. The expected
outcome is to provide a map of technology seeds and ideas of PEMs which satisfy the basic properties including
reliability, robustness, low-cost capability, especially for the vehicle application. Additional effect is
also anticipated by strongly appealing the importance of the PEM research to many researchers, allowing the
information sharing for further development in the future.
2. Organized Research Meetings and Committees
In the following meetings/committees, the knowledge and information accumulated in the Society of Polymer
Science, Japan were systematically analyzed. As an academic society, guiding principles from the scientific
viewpoint were investigated, to present the possible regime to develop original Japan-made PEM technologies,
including the creation of unprecedented research area of a PEM science.
(1) General Meeting (February 4, 2009)
Topics: (i) Objective of the investigation, (ii) Proposal of needs from the user side, (iii) Discussion on
the outline of action plan.
(2) Research Meeting
1) The 1st Research Meeting (February 5, 2009). Topics: Possibility of New Cathode Catalysts for Fuel Cells.
(3) Working Committee
1) The 1st committee (February 5, 2009). Topics: (i) Current technology state, (ii) Problems, (iii) Possible
targets and approaches, (iv) Process of idea proposal, (v) Priority, (vi) Networking of researchers.
2) The 2nd committee: (March 10, 2009). Topics: (i) Presentation from Dr. Takahashi (Toyota Motor Co.),
(ii) Presentation from Dr. Kato (Interlink Co.), (iii) Presentation from Dr. Shimohira
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る