High-Temperature Electrolysis Capabilities

Short stacks, also referred to as repeat-cells, are used to test cells and short stacks under realistic configurations and operating conditions for AST, parametric, and durability testing. Some test stands are designed to inject impurities into the gas feed streams. (Short stacks are composed of one or more cells ranging in size from <25 cm² to >100 cm².) PNNL and INL are currently able to provide this capability. PNNL stack testing: Three test fixtures (each up to 5 kW); I-V, EIS, thermal cycling. Each cell can be monitored. Cells up to 300 cm² can be accommodated. The test fixtures are for AST, parametric, thermal cycling, steam utilization, and durability testing. Impurities can be injected as needed. INL short stack testing: Test fixtures (up to 50 kW) for parametric, AST, and durability testing.