All Title Author
Keywords Abstract

热力发电  2015 

阻抗谱法与等效电路法相结合的熔融碳酸盐燃料电池极化特性研究

, PP. 95-98

Keywords: 熔融碳酸盐燃料电池,电化学交流阻抗谱,等效电路,阻抗分析,极化特性

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了提高清洁高效发电技术―熔融碳酸盐燃料电池的性能,实验测试了电解质隔膜形式、电极种类以及电池有效面积的单电池电化学阻抗谱特性,并采用zsimpwin软件对测试结果进行了拟合和分析。结果表明:以水为溶剂的隔膜性能与以正丁醇为溶剂的隔膜性能相当;纯ni电极较采用钢带为支撑的ni电极性能提升,主要是由于阴阳极电荷转移电阻的显著降低以及阳极与电解质间有效接触面积(电池面积)的增大;当单电池面积增大时,电池的瓦伯格阻抗增大了36%。可见,在电池面积放大过程中,改善燃料和氧化剂的输运特性是大面积电池开发中的重点。

References

[1]  jansend,mozaffarianm.advancedfuelcellenergyconversionsystem[j].energyconversionandmanagement,1997,38(13):957-967.
[2]  程健,许世森,徐越.高温燃料电池发电技术分析[j].热力发电,2009,38(11):7-11.chengjian,xushisen,xuyue.analysisofpowergenerationtechnologywithhigh-temperaturefuelcells[j].thermalpowergeneration,2009,38(11):7-11.
[3]  衣保廉.燃料电池--原理技术应用[m].北京:化学工业出版社,2004:399.yibaolian.fuelcells-theory,technology,application[m].beijing:chemicalindustrypress,2004:399(inchinese).
[4]  furukawak,okajimak,sudohm.structurecontrolandimpedanceanalysisofcathodefordirectmethanolfuelcell[j].journalofpowersources,2005,139:9-14.
[5]  bosioab,digiulioan,nambsw,etal.aneffectivesemiempiricmodelformcfckineticstheoreticaldevelopmentandexperimentalparametersidentification[j].internationaljournalofhydrogenenergy,2014,39(23):12273-12284.
[6]  hul,rexedi,lindberghg,etal.electrochemicalperformanceofreversiblemoltencarbonatefuelcells[j].internationaljournalofhydrogenenergy,2014,39(23):12323-12329.
[7]  perezfj,dudayd,hierromp,etal.analysisbyelectrochemicalimpedancespectroscopyofnewmcfccathodematerials[j].journalofpowersources,2000,86(1):309-315.
[8]  o'hayrerp,chas,colellawg,etal.fuelcellfundamentals[m].2nded.johnwiley&sons,2009.
[9]  bischoffm.moltencarbonatefuelcells:ahightemperaturefuelcellontheedgetocommercialization[j].journalofpowersources,2006,160(2):842-845.
[10]  moritah,nakanoh,mugikuray,etal.eisasatooltodeterminefuelflowdistributioninmoltencarbonatefuelcells[j].journaloftheelectrochemicalsociety,2003,150(12):a1693-a1698.
[11]  zhoul,linh,yib,etal.astudyonthestart-upandperformanceofakw-classmoltencarbonatefuelcell(mcfc)stack[j].electrochimicaacta,2006,51(26):5698-5702.

Full-Text

comments powered by Disqus