HIOKI ALDAS-α: High-Speed EIS System for Real-Time Impedance Analysis

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Product number: ALDAS-α

Product information HIOKI ALDAS-α: High-Speed EIS System for Real-Time Impedance Analysis

The ALDAS-α is a high-performance electrochemical impedance spectroscopy (EIS) system designed for analyzing fuel cells and water electrolysis. While conventional current-voltage (I-V) measurements are widely used to evaluate overall cell performance, they are limited in identifying the underlying causes of performance changes or degradation.

Using EIS, the ALDAS-α enables a deeper analysis by quantitatively evaluating and separating complex electrochemical phenomena within the cell. This provides a more detailed understanding of internal processes.

Thanks to its high-precision current sensing technology, the system delivers stable and accurate impedance data from very low frequencies, ensuring reliable and easy-to-interpret results.

A key benefit of the ALDAS-α system is its fast measurement speed, completing scans in less than 8 minutes [OW2.1]- significantly reducing test time compared to conventional systems. With support for simultaneous multi-channel measurements up to 8 cells and up to 20 A DC output, the ALDAS-α system reduces development time considerably.

The ALDAS-α is the ideal choice for high-speed, multi-channel EIS measurements in R&D environments where precision and efficiency matter most. It is one of HIOKI’s EIS measurement solutions, alongside the compact ALDAS-Mini and the high-power ALDAS-E.

Technical Specifications

Electrochemical impedance spectroscopy (EIS) for fuel cells and water electrolysis
Voltage measurement range: 60 mV to 20 V
Frequency range: high to low frequency sweep (e.g. 10 kHz to 100 kHz)
Measurement speed: approx. 7.6 minutes (multi-channel, fast mode)
Multi-channel capability: up to 8 cells simultaneously
DC output: up to 20 A without external DC power supply

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