The X-Stack is a modular, multi-cell electrochemical assembly engineered for comprehensive stack-level diagnostics and component optimization in alkaline, AEM, and PEM electrolysis systems. This robust platform supports systematic electrode/GDL thickness variation studies (≥ 1 mm) and enables researchers to investigate bipolar plate performance, membrane behavior, and multi-cell interactions in a controlled laboratory environment, with a design focused on balancing shunt currents and hydraulic pressure loss and allowing for individual cell voltage monitoring.

• Scalable Multi-Cell Architecture: Supports configurations from single-cell to nine-cell operation, enabling systematic investigation of stack behavior and shunt current effects.
• Thick Electrode/GDL Compatibility: Optimized for electrodes ≥ 1 mm thickness, with flat current collectors designed for uniform current distribution and stable electrode compression.
• Direct Cell Voltage Measurement: Integrated ports enable individual cell potential monitoring directly on bipolar plate materials for accurate stack diagnostics.
• Material Flexibility: Available with multiple bipolar plate materials (Nickel, Titanium, Stainless Steel) and current collector options for broad application compatibility.
• Chemical Resistance: PEEK flow bodies and corrosion-resistant gaskets (PTFE, EPDM, VITON) ensure long-term durability across pH 0-14 and elevated temperatures.