2008-08-012024-05-15https://scholars.lib.ntu.edu.tw/handle/123456789/663811摘要：本計畫將以兩年時間進行活化氧化鈰固態電解質(active electrolyte)薄膜材料之合成及單電池5000小時長時間功能測試。其工作內容包括採用電漿強化化學沉積(PECVD)法，或是採用水熱(hydrothermal)薄膜成長法，合成具有高表面積釤-氧化鈰(Sm-doped CeO2, SDC)薄膜，長在緻密氧化鋯基板上。單電池之長時間測試將進行下列工作，一是測試場址的選定，將以新近公告之燃料電池測試安全規範為標準；二將選取以氧化鋯/氧化鈰材料作為平板狀(planar)固態電解質材料，搭配熱膨脹係數合適之陰極(cathode)、陽極(anode)及封裝(sealing)玻璃陶瓷材料，進行單電池之整合組裝，將使用線性網路規劃法，以簡捷圖法(simplex method)進行分析；三為自行組裝中溫測試設備，進行測試。研究的第一年將進行定溫、5000小時功能測試，並與PEMFC測試結果相比較；第二年並將引入溫度循環(cyclic)之測試，並嘗試將積層(multi-layer)玻璃陶瓷做成燃料及空氣流道，將多個電池結合。新的SDC之活化薄層之界面分析，相關之薄膜材料測試，微結構分析，電能及電性測試等均會進行。<br> Abstract: In this project, two main subjects will be carried out in two years. One is to synthesize active oxide electrolyte films and the other is to test the functions of a single cell up to 5000 h. In order to achieve the purposes, plasma enhanced chemical vapor deposition (PECVD) and/or hydrothermal synthesis methods will be used to grow Sm-doped CeO2 (SDC) thin film, which should have columnar grain structure and high surface area on a highly dense ZrO2 substrate. There are several works will be done for long-term test of single cell. First, a testing location will be selected and the progress of the test will follow the standard of safety operation for SOFC. Second, planar ZrO2/CeO2 electrolyte will be adopted, and the materials used for a cathode, anode and sealing glass-ceramics with appropriate coefficient of temperature expansion (CTE) will be used to assemble a single cell. The assembly of the cell will be planned, analyzed, and controlled by simplex method. Third, we will assemble the equipments for the long-term test at intermediate-temperature (500-750oC). For the first year of this project, 5000 hr long-term test at constant temperature will be accomplished, and compared with the testing results of PEMFC. The next year, the cyclic (1000 cycles) test will be introduced and will be adapted as glass-ceramic channels for fuel and air by multi-layer design, of which is used for the assembly of several cells together. Interface analysis for active SDC thin films, microstructure analysis, electric and power density examinations will be carried out and reported.固態氧化物燃料電池封裝玻璃結構電極電解質長時測試solid oxide fuel cell (SOFC)sealing glassstructureelectrodeelectrolytelong-term test