Easy sintering of silver doped lanthanum strontium manganite current collector for solid oxide fuel cells |
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| Authors: | Chuan WangXianshuang Xin Yanjie XuJianyin Chen Le ShaoJuan Zhou Shaorong Wang Tinglian Wen |
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| Affiliation: | CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS), 1295 Dingxi Road, Shanghai 200050, PR China |
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| Abstract: | A new system, (La0.8Sr0.2)1−xAgxMnO3+δ (LSAM, x ≤ 0.2), is developed as current collector for solid oxide fuel cell (SOFC). LSAM is prepared by a modified sol-gel method and presents a single phase. The shrinkage temperature reduces from 1150 °C to 800 °C with an addition of 15 mol% Ag to La0.8Sr0.2MnO3+δ (LSM20). The contact resistance between the current collector and the cathode is measured, and the influence of Ag content on the contact resistance is investigated. The result shows that the contact resistance using (La0.8Sr0.2)0.85Ag0.15MnO3+δ (LSAM15) as current collector is about 12 mΩ cm2 at 750 °C, which is close to the value using expensive Pt paste as current collector. This new system is a promising current collecting material for the practical application of SOFC. |
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| Keywords: | Solid oxide fuel cell Current collector Contact resistance Silver doped lanthanum strontium manganite |
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