000130909 001__ 130909
000130909 005__ 20190812205248.0
000130909 037__ $$aCONF
000130909 245__ $$aDesign of 500 W Class SOFC Stack with Homogeneous Cell Performance
000130909 269__ $$a2007
000130909 260__ $$bThe Electrochemical Society$$c2007
000130909 336__ $$aConference Papers
000130909 490__ $$aECS Transactions$$v7
000130909 520__ $$aOur planar SOFC stacking technology uses unprofiled metallic interconnects (MIC) and thin cells of tape cast anode supported YSZ. The key element is the gas diffusion layer (GDL) between cell and MIC, which consists of so-called SOFConnex™. Using square cells with internal manifolds, 0.5 W/cm2 stack power density (800°C) can be obtained on short stacks. However, this open design configuration limits the assembly of large stacks and the durability of operation, owing to postcombustion and redox cycling occurring at unprotected cell edges. A new design, inspired from modeling work and the adaptability of the SOFConnex™ GDL, led to oblong-shaped cells, assembled in a closed stack casing with external air manifolding and fuel recovery manifolding, avoiding postcombustion. While stack power density in both designs remains similar, the operation at increased fuel utilization has become more stable in the 2nd design. Furthermore, a correlation of performance homogeneity during stack testing was drawn to assembly quality control. A 36-cell stack in dilute H2 at 800°C achieved 625 Wel (28% LHV efficiency, 0.35 W/cm2) under continuous polarisation, with all 6 clusters of 6 cells showing coincident i-V-output.
000130909 6531_ $$aSOFC stack
000130909 700__ $$aBucheli, Olivier
000130909 700__ $$aMolinelli, Michele
000130909 700__ $$aZähringer, Thomas
000130909 700__ $$aThorn, Emily
000130909 700__ $$0241617$$g101146$$aDiethelm, Stefan
000130909 700__ $$0240290$$g114073$$aWuillemin, Zacharie
000130909 700__ $$0240153$$g128223$$aNakajo, Arata
000130909 700__ $$0240154$$g151101$$aAutissier, Nordahl
000130909 700__ $$0240166$$g107971$$aVan herle, Jan
000130909 7112_ $$dJune 3-7, 2007$$cNara, Japan$$a10th International symposium on Solid Oxide Fuel cells
000130909 720_1 $$aMizusaki, Junichiro$$eed.
000130909 720_1 $$aSinghal, Subash$$eed.
000130909 720_1 $$aYokokawa, Harumi$$eed.
000130909 720_1 $$aEguchi, Koichi$$eed.
000130909 773__ $$j7$$tElectrochemical Society Transactions$$k1$$q123-132
000130909 8564_ $$zn/a$$uhttps://infoscience.epfl.ch/record/130909/files/SOFCX_JVH_ECT000123.pdf$$s664069
000130909 909C0 $$xU10315$$pLENI$$0252044
000130909 909CO $$ooai:infoscience.tind.io:130909$$qGLOBAL_SET$$pconf$$pSTI
000130909 937__ $$aLENI-CONF-2009-003
000130909 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000130909 980__ $$aCONF