Performance Enhancement of Thin Film LSCF Cathodes by Gold Current Collecting Layer
- Authors
- 박태현; 유원종; 이예근; 이윤호; 조구영; WAQAS HASSAN TANVEER; 김유성; 차석원
- Issue Date
- Apr-2016
- Publisher
- KOREAN SOC PRECISION ENG
- Citation
- INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY, v.3, no.2, pp.185 - 188
- Journal Title
- INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
- Volume
- 3
- Number
- 2
- Start Page
- 185
- End Page
- 188
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/5803
- DOI
- 10.1007/s40684-016-0024-4
- ISSN
- 2288-6206
- Abstract
- Performance improvement of a thin film lanthanum strontium cobalt iron oxide (La0.6Sr0.4Co0.8Fe0.2O1-delta, LSCF) cathode deposited by pulsed laser deposition (PLD) was achieved by utilizing a sputtered gold (Au) film as a current collecting layer. To improve low in-plane electric conductivity of the porous LSCF film due to its columnar structure, fabrication of the well-connected and porous current collector is applied by sputtering. The effects of the Au current collecting layer for solid oxide fuel cells (SOFCs) with the LSCF cathode are electrochemically characterized. The cell without the current collecting layer shows 14 Omega.cm(2) of ohmic resistance, while the cell with the current collecting layer exhibits 5.5 Omega.cm(2) of ohmic resistance at 550 degrees C. In addition, the cell with the Au layer shows almost four times higher peak power density than the cell without the Au layer. Therefore, the results suggest that the sputtered Au current collecting layer enables fabrication of porous LSCF cathode with enhanced electric conductivity and improves the performance of the fuel cell.
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