Abstract
Reversible solid oxide cell (rSOC) and solid oxide
electrolysis (SOE) are gaining growing interest because
they can convert both electricity into a chemical fuel
and fuel back to electricity with high efficiency. This
work summarizes the electrochemical performance
characterization of Elcogen E350 stack both in fuel cell
and electrolysis modes. Elcogen E350 stack is composed of
15 unit layers all having a 121 cm2 active electrode
area. The electrochemical characterization is conducted
in temperature region 650-700 °C and with varying current
densities, multiple hydrogen-to-steam ratios, reactant
utilizations and air flow rates. Results indicate that
the stack can be used not only as a fuel cell but also in
electrolysis mode. It is capable to be operated up to 1.0
A cm-2 current below 700 °C and can be operated also with
high reactant utilization in electrolysis mode.
| Original language | English |
|---|---|
| Pages (from-to) | 3103-3111 |
| Journal | ECS Transactions |
| Volume | 78 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 30 May 2017 |
| MoE publication type | A1 Journal article-refereed |
| Event | 15th International Symposium on Solid Oxide Fuel Cells, SOFC XV - Hollywood, United States Duration: 23 Jul 2017 → 28 Jul 2017 |
Funding
Keywords
- solid oxide electrolysis cell
- stack
- co-electrolysis
- steam electrolysis
- energy storage
- energy conversion
