| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2022
|
| Presentation Title |
Development of Solid Oxide Cell and Stack Technologies at Nexceris: From Fuel Cells to Electrolyzers and Reversible Operation |
| Author(s) |
Emir Dogdibegovic, Gene Arkenberg, David Kopechek, Anila Wallace, Scott Swartz |
| On-Site Speaker (Planned) |
Emir Dogdibegovic |
| Abstract Scope |
Over the past several years Nexceris has advanced its solid oxide cell and stack technologies through innovations in materials, design, and operation. In this talk, development of cells, stack components and stacks will be discussed. Lightweight SOFC stacks operate at high current density (0.5 -0.7 A/cm2) and high fuel utilization (70 – 80 %) leveraging patented FlexCell planar cell design, internal reforming capability, and tolerance to sulfur impurities in military logistic fuels. SOEC cells with downselected electrode sets provide current density over -1.5 A/cm2 at 1.3 V and 800 °C with 75% steam/25% hydrogen fuel and air as oxidant. The promising electrodes were implemented into short stacks and operated continuously in SOEC mode at ~1.3 V for ≥ 500 hours with <0.5%/kh degradation and improving. RSOC tests were recently initiated with dynamic operation between the two operating regimes. Nexceris’ ChromLok coatings for bipolar plates were integrated to enhance stack durability. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, High-Temperature Materials, Ceramics |