(R)SOFC高溫環境用密封材料之適性研究與電堆模組研製設計

Research and Development of Sealing Material and Stack Module for (R)SOFC Applications

黃柏維(Bo-wei Huang)

指導教授 ： 鐘國濱

元智大學/工程學院/先進能源碩士學位學程/碩士(2013年)

https://doi.org/10.6838/YZU.2013.00326

摘要

本論文針對平板型固態氧化物燃料電池(Solid Oxide Fuel cell)技術，以陽極支撐型電池設計發展單電池與電池堆。首先對於平板型SOFC單電池的設計與其性能改善加以著手，進而發展出電池堆設計。在單電池技術中，主要針對改善接觸阻抗問題與陽極燃料端氣體密封問題。接觸阻抗之改善包含集電板與陽極支撐電池間的密合性且不發生過壓情形。相對於單電池，電池堆內部流道的結構更為複雜；因此，電池堆內部流體的流動現象、溫度分布，以及電化學反應現象都將會更加難以預測及控管。經過多次實驗後得到流道對於燃料氣體通暢性有著非常大的關連，燃料氣體進氣順暢可使電池還原活化的速度提升，更進一步減少電池高溫環境下長時間活化而致提早老化，連帶讓電池能夠保持一定的穩定性能。

關鍵字

固態氧化物燃料電池，電堆模組，密封材料，開路電壓

並列摘要

Purpose of this thesis is to develop single cell and stack with anode supported cell for plannar solid oxide fuel cell (SOFC) application. Results concluded from single cell design are used for stack design. For single cell design, the priority is to reduce contact resistance as well as fuel leakage in anode side. Caution should be addressed that over-pressure is avoided while minimuming fuel leakage between current collector and anode supported cell. Comparing to single cell, internal flow channel structure of a stack is more complex. Therefore, the internal fluid flow, the temperature distribution, and electrochemical reaction will be more difficult to predict and control. After several experiments, the fluency of the fuel flow is largely improved and results in easier cell activation. Easier cell activation would prevent non-necessary cell degradation under high temperature environment.

並列關鍵字

Solid Oxide Fuel Cell (SOFC)，Stack，Sealing

參考文獻

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