成果報告書詳細
管理番号20110000001126
タイトル*平成22年度中間年報 固体高分子形燃料電池実用化推進技術開発 基盤技術開発/ セル評価解析の共通基盤技術
公開日2011/11/9
報告書年度2010 - 2010
委託先名学校法人大同学園 学校法人立命館 国立大学法人東京工業大学 財団法人日本自動車研究所
プロジェクト番号P10001
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:1.研究開発の内容及び成果
平成22 年度においては、セル評価解析の共通基盤技術を構築することを目的として、以下の内容を実施
した。
1)系統的なMEA 評価に用いる標準セル構造の検討(日本自動車研究所、大同大学)
(1-1)標準MEA 作製法の検討
(1-2)セル構造の違いによる発電特性変化の検討
(1-3)新規材料評価に用いるMEA およびセル構造の検討
2)MEA による触媒評価のためのプロトコル検討(大同大学、日本自動車研究所)
(2-1)単セルによる触媒初期性能評価のためのプロトコル検討
(2-2)単セルによる触媒耐久性評価のためのプロトコル検討
3)MEA による電解質膜評価のためのプロトコル検討(大同大学、日本自動車研究所)
(3-1)単セルによる電解質膜初期性能評価のためのプロトコル検討
(3-2)単セルによる電解質膜耐久性評価のためのプロトコル検討
4)MEA 中物質移動の解析評価のためのプロトコル検討(東京工業大学)
(4-1)触媒層断面構造評価のためのプロトコル検討
(4-2)MEA 中物質移動の解析評価のためのプロトコル検討
5)触媒単体の解析評価のためのプロトコル検討(大同大学、立命館大学)
6)電解質膜単体の解析評価のためのプロトコル検討(立命館大学、大同大学)
7)セル評価解析プロトコル全体案の提示
(日本自動車研究所、大同大学、東京工業大学、立命館大学)
8)水素不純物の影響評価(日本自動車研究所)
英文要約 In order to accelerate the commercialization of PEFC by cost reduction and reliability improvement, it is necessary that each research and development institute shares the degradation factor analysis results of cell performance, durability and so on, evaluated with common MEA evaluation methods. In this project, in order to construct common base technology to promote the PEFC commercialization, the four institutes of Daido University (DU), Ritsumeikan University (Rits), Tokyo Institute of Technology (TITECH), and Japan Automobile Research Institute (JARI) formed a consortium and conducted the research and development of following themes
in FY2010.
A) Establishment of MEA fabrication specifications (DU, JARI)
The standard MEA specification for material evaluation, the standard cell structures, and the standard cell evaluation condition were established. DU established MEA fabrication methods and small cell structures which could be applied to the evaluation of a few 50-100 mg catalyst samples, and obtained a prospect that the cell specification evaluation of novel catalysts using a small cell with 1cm2 electrodes was able to be conducted.
B) Establishment of MEA evaluation methods (DU, JARI)
The standard cell evaluation method and evaluation flow for the intercomparison evaluation of novel materials were formulated. The common test conditions, such as test preparation, cell assembly, conditioning, I-V measurement, AC impedance measurement, and so on, were formulated. In addition, a durability evaluation protocol by using the JARI standard cell was proposed.
C) Construction of analysis evaluation methods (DU, TITECH, Rits)
TITECH accelerated twice the conventional speed of catalyst layer cross-section analysis and evaluation with FIB/SEM. In addition, TITECH analyzed the time change behavior of water exhausted from the anode and the cathode gas channels, by using in situ water measuring devices which were placed at the inlet and outlet. Moreover, by using those measurement results, the net water transport coefficient (NWTC) of MEA was obtained by numerical calculations. DU and Rits extracted the current problems on the catalyst ORR activity evaluation by using rotating electrodes, and analyzed the relationship between ORR activity and the microstructure of catalyst particles by using TEM. In addition, Rits established the simplifying and accelerating methods for creep property evaluations of electrolyte membranes by using a dynamic microhardness tester.
D) Impact evaluation of hydrogen impurities (JARI)
Effect of CO in the hydrogen fuel on fuel cell performance was investigated for various anode platinum loading (0.05-0.40 mg/cm2) and cell temperatures (60-80 oC). The voltage drop became larger as the platinum loading was reduced or the cell temperature was lowered.
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