Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5145937 | International Journal of Hydrogen Energy | 2017 | 8 Pages |
Abstract
Recent development on electrolyte-free fuel cell (EFFC) holding the same function with the traditional solid oxide fuel cell (SOFC) but with a much simpler structure has drawn increasing attention. Herein, we report a composite of industrial grade rare-earth precursor for agriculture and Li0.3Ni0.9Cu0.07Sr0.03O2-δ (RE-LNCS) for EFFCs. Both structural and electrical properties are investigated on the composite. It reveals that the RE-LNCS possesses a comparable ionic and an electronic conductivities, 0.11 S cmâ1 and 0.20 S cmâ1 at 550 °C, respectively. An excellent power output of 1180 mW cmâ2 has been achieved at 550 °C, which is much better than that of the conventional anode/electrolyte/cathode based SOFCs, only around 360 mW cmâ2 by using ionic conducting rare-earth material as the electrolyte. Engineering large size cells with active area of 25 cm2 prepared by tape-casting and hot-pressing gave a power output up to 12 W. This work develops a new functional single layer composite material for EFFCs and further explores the device functions.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Youquan Mi, Wei Zhang, Hui Deng, Xunying Wang, Liangdong Fan, Bin Zhu,