HIOKI ALDAS EIS Analysis/Electrochemical Impedance Spectroscopy
Description
Files/Downloads
Benefits of the ALDAS EIS Impedance Measurement Systems
- Operate on the principle of electrochemical impedance spectroscopy (EIS).
- Three model series for applications ranging from research and development to industrial use.
- ALDAS-E for EIS measurements for kW to MW-class electrolysis and fuel cell stacks.
HIOKI ALDAS EIS Analysis/Electrochemical Impedance Spectroscopy
Using modern electrochemical impedance spectroscopy (EIS), the HIOKI ALDAS system provides detailed insights. This enables developers to optimize efficiency, reduce energy losses, and, for example, sustainably improve the performance of individual cells and cell stacks. The HIOKI ALDAS product family offers various models ranging from the "α" and "Mini" to the "-E" series. ALDAS-E represents the high-end solution within the ALDAS product family and covers applications that go beyond the scope of the fast ALDAS-α and the compact ALDAS-Mini.
- High-speed EIS measurement: ALDAS cuts the evaluation cycle to approximately 7.6 minutes by accelerating the typically lengthy low-frequency impedance measurements.
- Easy connection to EC/FC evaluation devices: ALDAS seamlessly integrates with existing equipment, eliminating complex wiring and significantly reducing setup time.
- ALDAS-α: High-speed EIS system for real-time impedance analysis, particularly for fuel cells and water electrolysis.
ALDAS-Mini: Compact EIS analyzer for the development of electrolysis cells.
ALDAS-E: EIS measurement system for electrolysis and fuel cell stacks in the kW to MW range.
Model Overview
| Series | HIOKI ALDAS-α | HIOKI ALDAS-Mini | HIOKI ALDAS-E |
| Description | Lab-scale EC/FC cell EIS measurement: ALDAS-α requires no booster power supply and can apply up to 20 ADC directly from the measurement system itself | R&D: Accelerate research by measuring simultaneous EIS on up to 8 channels, perfect for large-area cells and demonstration stacks | Reliable multi-channel EIS for MW-class electrolyzers, delivering high-precision data from up to 48 channels even in noisy industrial settings |
| EIS | 10 mHz...100 kHz | 10 mHz...10 kHz | 10 mHz...100 kHz |
| Max. input voltage/current | 20 V, 50 A | 30 V, 500 A | 1 kV, 10 kA |
| More data | Voltage measurement range 60 mV...20 V; 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 |
Stack voltage range up to 60 V; electrolysis current range up to 2000 A; multi-channel measurement up to 8 cells simultaneously; compatible with PEM, SOEC, AEM, AWE technologies; high noise immunity for stable measurements |
Measurement targets: electrolysis cells, fuel cells stacks, MW-electrolyzers: measurement current up to 10 kA (with combined sensors); multi-channel capability: 1 to 48 channels; measurement voltage: 1.5...1000 V |
