About ALDAS
What is ALDAS-E？
HIOKI offers ALDAS-E, a revolutionary measurement solution for evaluating water electrolyzers.
The ALDAS method enables impedance measurement of cells and stacks and logging of changes in impedance values during active conditions when a water electrolyzer operates at high currents.
About method
What is ALDAS method?
The ALDAS method is a measurement method that applies HIOKI’s specialized impedance measurement technology used in AC-IR measurement of lithium-ion batteries and high-precision current measurement technology required in the evaluation of power electronics such as inverters.
The ALDAS system’s wide voltage and current measurement range and high noise immunity make it helpful in evaluating cells operating with wide current and voltage ranges. Hence, ALDAS is useful to assess cell characteristics, monitor the condition of fuel cells in operation, and diagnose cell degradation under actual load conditions for large-scale hydrogen production, FCVs, HDVs, and other fuel cells.
Who is it for?
What ALDAS-E offers you…
⚫︎ Characterization of materials for bigger-capacity Electrolysis cells
⚫︎ Comparison between platinum Loading and impedance, regarding MEA
⚫︎ Long-term membrane degradation evaluations during water electrolyzer is in operation
CASE
Graphical Insights Powered by ALDAS
Nyqist plot(Cole-cole plot)
Logging plot : Real(Z) 1kHz
Block Diagram
Specifications
Specifiations | Details |
|---|---|
Maximum input Total voltage | 150V / 1000V * |
Maximum input current | 20A / 200A / 500A / 2000A * |
Frequency | 10mHz to 10kHz ** |
Measurement Channels | 8ch / 16ch / 24ch / 32ch * |
*configuration dependent **frequency extension on request | |
Functions | |
Measurement during Operation | available |
Simultaneous multi-channel measurement | available |
Simultaneous stack and cell measurement | available |
Special orders | |
To increase the maximum input value of voltage and current | customizable |
White Paper
The white paper on impedance measurement in water electrolyzer is available
Media
・日本経済新聞社(Nikkei Inc.)：member article
https://www.nikkei.com/article/DGXZQOCC18ACI0Y3A011C2000000/
・信濃毎日新聞社(The Shinano Mainichi Shimbun)：member article
https://www.shinmai.co.jp/news/article/CNTS2023092001191
・電波新聞(Dempa Publications)：member article
https://dempa-digital.com/article/479944
・PR TIMES (HIOKI’s Hydrogen-related news summary)
https://prtimes.jp/main/html/searchrlp/company_id/127829
・Hydrogen Central
https://hydrogen-central.com/hioki-receives-order-national-institute-advanced-industrial-science-technology-aldas-e-water-electrolysis/
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