Residual stress-dependent electric conductivity of sputtered co-doped CeO2 thin-film electrolyte

2011 ◽  
Vol 109 (8) ◽  
pp. 084321 ◽  
Author(s):  
Wei Liu ◽  
Hongqin Liu ◽  
Gang Ou ◽  
Wei Pan
Keyword(s):  
Thin Film ◽  
Residual Stress ◽  
Electric Conductivity ◽  
Thin Film Electrolyte ◽  
Film Electrolyte ◽  
Doped Ceo2 ◽  
Stress Dependent ◽  
Co Doped

Fabrication of Solid Oxide Fuel Cells via Thin Film Techniques

2010 ◽  
Vol 654-656 ◽  
pp. 2787-2790 ◽  
Author(s):  
Yoon Ho Lee ◽  
Goo Young Cho ◽  
Young Seok Jee ◽  
Ikwhang Chang ◽  
Sang Kyun Kang ◽  
...  
Keyword(s):  
Thin Film ◽  
Film Deposition ◽  
Solid Oxide ◽  
Limiting Current ◽  
Membrane Electrode ◽  
Barium Zirconate ◽  
Oxide Fuel ◽  
Operation Temperature ◽  
Thin Film Electrolyte ◽  
Film Electrolyte

Fabricating electrolyte with thin film is one of various methods of lowering the operation temperature for solid oxide fuel cell (SOFC). Because the major polarization of SOFCs is ohmic loss, many groups have tried to fabricate a thin film electrolyte – some proton conducting material that has the conductivity of a couple of orders higher than oxygen conducting one. We have investigated the synthesis of Membrane Electrode Assembly (MEA) including Yttria-doped Barium Zirconate(BYZ) thin film electrolyte via thin-film processes such as Pulsed Laser Deposition and Sputtering. Another approach to lower the operation temperature of SOFCs is the bi-layer structure electrolyte. The functional layer via thin film deposition could guarantee minimum power density loss and stable operation. After the study of Atomic Layer Deposition (ALD) condition to deposit Yttria Stabilized Zirconia (YSZ) on Gadonilia doped Cerate (GDC) substrate, GDC/YSZ bi-layered electrolyte button cells showed higher OCV and larger limiting current with 100nm YSZ ultra thin film. The performance improvement might be attributed to the function of electron blocking and cutting off the reducible gas.

Fabrication of solid thin film electrolyte and LiCoO2 by aerosol flame pyrolysis deposition

2007 ◽  
Vol 80 (2) ◽  
pp. 502-506 ◽  
Author(s):  
Kihyun Cho ◽  
Jangwon Oh ◽  
Taewon Lee ◽  
Dongwook Shin
Keyword(s):  
Thin Film ◽  
Thin Film Electrolyte ◽  
Film Electrolyte
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