Above and beyond the Lab ScaleCreating a kW-Sized AEM Electrolyzer Validated by In-Situ Distribution of Relaxation Times.

ABSTRACT: Most reported anion exchange membrane water electrolyzers (AEMWEs) are currently limited to the usual 1-10 cm² electrodes in single-cell AEMWEs; however, accelerating its technology readiness level necessitates an explosive increment in unit sizes. We report the design, characterization, and validation of a 1 kW, 500 cm² (5 × 100 cm²) non-PGM AEMWE stack. Complete with corrosion protection, internal heating, and a control system, the patented stack design operated stably at 1.0 A cm^-2 with an energy efficiency of 53.2 kWh kg_H2 ^-1. Moreover, to confirm cell-to-cell uniformity, a comprehensive statistical analysis was carried out to reveal five uniformly performing cells. Impedance analysis complemented by distribut

SUBMITTER: Nuggehalli Sampathkumar S 

PROVIDER: S-EPMC12519592 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature