氣膠沉積法製備中溫型固態氧化物燃料電池電解質層之研究

A Study of Electrolyte Layer Deposited by Aerosol Deposition Method for Intermediate Temperature Solid Oxide Fuel Cell

王志豪(Chih-hao Wang)

指導教授 ： 王錫福

國立臺北科技大學/工程學院/材料科學與工程研究所/碩士(2011年)

摘要

本研究利用氣膠沉積法(Aerosol deposition method, ADM)成功製備固態氧化物燃料電池(Solid oxide fuel cell, SOFC)之Sm0.2Ce0.8O1.9(SDC)電解質層在NiO-SDC陽極上。此方法之特色在於製程簡單、沉積速率快、低溫製程及精確化學計量比控制。研究中經由不同鍍膜製程參數的控制，探討其對SDC膜層的相組成及微結構之影響，利用ADM沉積SDC電解質層於NiO-SDC陽極上，其膜層之厚度約為1.5 μm，再以網印法製備La0.6Sr0.4Co0.2Fe0.8O3-δ(LSCF)陰極於SDC電解質層上，完成單元電池之製備。單元電池在500oC及700oC之工作溫度下，開路電壓(OCV)分別為0.81 V及0.59 V，電功率密度分別為0.01 W/cm2及0.34 W/cm2，結果印證氣膠沉積法在沉積緻密SDC電解質層的潛力。

關鍵字

氣膠沉積法 ； 固態氧化物燃料電池 ； SDC ； 電解質

並列摘要

In this study, The Sm0.2Ce0.8O1.9 (SDC) thick Films have been successfully deposited on the NiO-SDC substrates by a novel aerosol deposition method (ADM), as an electrolyte layer of an intermediate temperature solid oxide fuel cells (IT-SOFC). This method has the characteristics as simple operation, fast deposition rate, low temperature process and precise stoichiometric control. This study investigated the control of different process parameters effects SDC electrolyte layer of the phase composition and microstructure. The SDC electrolyte layer which was about 1.5 μm deposited on the NiO-SDC anode and then prepared by screen printing La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) cathode on the SDC electrolyte layer to complete the preparation of the unit cell. The results indicated that the unit cell showed relatively high maximum power density of 0.01 W/cm2 at 500oC and 0.34 W/cm2 at 700oC, and the open circuit voltage (OCV) were 0.81 V and 0.59 V, respectively. In view of this, the aerosol deposition method can be applied for depositing high performance film electrolytes in intermediate temperature solid oxide fuel cells.

並列關鍵字

SOFC ； ADM ； SDC ； Electrolyte

參考文獻

[2] H. K. Woodward, A performance based, multi-process cost model for solid oxide fuel cells, Master thesis, Worcester polytechnic institute, America, 2003.

[4] R. J. kee and Huayang Zhu, "Solid oxide fuel cells operating principles, current challenges, and the role of syngas," Combustion science and technology, vol. 180, no. 6, 2008, pp. 1207-1244.

[5] J.P.P. Huijsmans, "Intermediate temperature SOFC-a promise for the 21st century," Journal of power sources, vol. 71, 1998, pp. 107-110.

[7] A. B. Stambouli, "Solid oxide fuel cells (SOFCs): a review of an environmentally clean and efficient source of energy," Renewable and sustainable energy reviews, vol. 6, 2002, pp. 433-455.

[9] N. Laosiripojana, "Reviews on solid oxide fuel cell technology," Engineering journal, vol. 13, 2009, pp. 65-83.