Abstract
Yttria-stabled zirconia (YSZ) electrolyte film was prepared on NiO/YSZ anode substrate by a slurry dip-coating technique for intermediate temperature solid oxide fuel cells (IT-SOFCs). The pre-sintering temperature of the anode substrate is crucial to the densification of the electrolyte films, and an optimal temperature of 1000 °C was determined. SEM tests indicated that homogeneous and dense electrolyte film with a thickness of 24 μm could be obtained by twice dip-coating, with good adhesion to the anode substrate. A cell assembled with the prepared YSZ electrolyte films presents an open circuit voltage (OCV) of 1.14 V and a power density of 0.50 W·cm-2 operated at 800 °C. The slurry dipcoating technique was also applied to fabricate YSZ films for large size IT-SOFCs, and the maximum power density is 146 mW·cm-2. This result indicates that the slurry dip-coating technique for preparation of YSZ electrolyte films has potential application in fabricating SOFC stacks.
| Original language | English |
|---|---|
| Pages (from-to) | 259-268 |
| Number of pages | 10 |
| Journal | ECS Transactions |
| Volume | 59 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | 2014 Electrochemical Conference on Energy and the Environment, ECEE 2014 - Shanghai, China Duration: 13 Mar 2014 → 16 Mar 2014 |