ALDAS-E – EIS Measurement System for kW to MW-Class Electrolysis and Fuel Cell Stacks
Product information ALDAS-E – EIS Measurement System for kW to MW-Class Electrolysis and Fuel Cell Stacks
The ALDAS-E is a high-performance electrochemical impedance spectroscopy (EIS) system designed for in-operation analysis of large-scale electrolysis and fuel cell stacks. It enables precise impedance measurement under real operating conditions, enabling engineers to evaluate performance, identify losses, and monitor degradation in kW to MW-class-fuel cell and electrolysis systems.
A key strength of the system is its ability to handle very high currents. By combining multiple current sensors, ALDAS-E supports measurements up to 10 kA, while still detecting small AC signals within noisy DC environments, which is critical for realistic stack evaluation.
The ALDAS-E system offers scalable multi-channel measurement up to 48 channels, enabling simultaneous observation of both total stack behavior and individual cell performance. This makes it ideal for detailed stack diagnostics, comparative analysis, and electrolysis and fuel cell stack optimization.
Despite the complexity of large-scale systems, ALDAS-E is designed for easy integration, connecting to existing setups without requiring dedicated power supplies or system modifications. The fast EIS measurement below 8 minutes and its high stability down to low frequencies, ALDAS-E significantly reduces evaluation time while maintaining high accuracy.
ALDAS-E represents the high-end solution for applications that go beyond the scope of the high-speed ALDAS-α and the compact ALDAS-Mini.
Technical Specifications
- Measurement targets: electrolysis cells, fuel cells, and full stacks
- Frequency range: 10 mHz to 100 kHz
- Measurement current: up to 10 kA (with combined sensors)
- Multi-channel capability: 1 to 48 channels
- Measurement voltage: 1.5 V to 1000 V