Scott Swartz, Nexceris’ Founder and CTO, presented an update on the Low-Cost Manufacturing of High Temperature Electrolysis Stacks at the DOE Hydrogen Program: 2022 Annual Merit Review and Peer Evaluation Meeting held on June 6-8, 2022.
What follows is a summary of the presentation.
The project goal is to develop cell and stack manufacturing technologies to enable an elevated temperature electrolysis stack manufacturing cost of less than $100 per kW.
- A two-layer membrane mesh layer that mechanically supports a thin electrolyte membrane
- A thin membrane for improved performance
- The Dense cell periphery facilitates sealing
- Electrode material for process flexibility
Cell Cost Reduction
- Scale-up production of advanced barrier layers and oxygen electrode materials
- Reduce thicknesses of FlexCellTM support and membrane layers to increase active cell area
- Stack components designed for low-cost manufacture
- External air manifolding scheme simplifies egress of oxygen effluent into ambient
- Large active cell area enables appropriate stack module size for megawatt-scale HTE systems
Stack Cost Reduction
- Validate low-cost interconnect alloy material
- Long term stack durability testing
- Reduce number of components in stack repeat unit
- Automation of stack component manufacturing
Successful execution of this project will enable elevated temperature electrolysis stacks to be manufactured at a cost of $100 per kW, which is required to achieve DOE’s Earth Shot goal of producing hydrogen at $1/kg.
Please click here to review the full presentation.