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Measure your electrolyzer and fuel cell

Keep overview of state of health, ensuer optimal working conditions with our potentiostats.

Potentiostats are designed for EIS analysis of single fuel cells, electrolyzers, or batteries.

With our unique source / load booster, you can extend current up to 2000 A.

Why Potentiostat / Galvanostat?

The heart of every electrochemical laboratory

Potentiostat / Galvanostat is an invaluable tool of electrochemical research and development, quality control, fuel cell and battery testing, corrosion research etc. This multipurpose device offers various electrochemical measurement techniques like cyclic voltammetry/amperometry, linear sweep voltammetry / amperometry, chronoamperometry, electrochemical impedance spectroscopy etc. It enables deep and precise insight into electrochemical processes of your desire.

Discover secrets of your electrochemical system

The electrochemical impedance spectroscopy (EIS) analysis is the ultimate technique to unlock the secrets of your electrochemical system during its standard operating conditions. The EIS method measures the impedance of a system over a wide range of frequencies. It provides valuable information about the system's response at different timescales, which is of particular interest in studying the reaction kinetics at the electrode surfaces, the diffusion of reactants and products, the ohmic resistance of the electrolyte, etc.

Wide range with excellent accuracy

Our potentiostat/galvanostat provides wide measurement range up to ±10 V and ±100 A with high accuracy and precision in both potentiostatic and galvanostatic measurement mode. With its capability to measure high-current densities our potentiostat/galvanostat is best suited for analysis of electrolyzers, fuel-cells and stacks, and batteries.

Features for your hydrogen solution

Precious EIS Acquisition with high accuracy

Our Potentiostats / Galvanostat exhibit a high level of measurement accuracy.

Get deeper insight to precision of measured data

In experimental design, where small fluctuations of measured data are of interest, the ultimate precision reveals its importance.

What testing range do you need?

Potentiostats / Galvanostats with EIS for various use

  • Potentiostats are designed for EIS analysis of single fuel cells, electrolyzers, or batteries.
  • With our unique source / load booster, you can extend current up to 2000 A

Typical applications include hydrogen fuel cells, water electrolyzers, solid-oxide cells, redox-flow batteries, and lithium batteries with high-current and high-power requirements. Additionally, EIS is utilized in applied research, manufacturing testing, and quality control.

Key parameters

  • Potentiostat / Galvanostat up to ±100 A (4-quadrant)
  • Current ranges up to ±100 A (4 ranges)
  • Impedance spectroscopy 1 mHz ... 100 kHz
  • Cyclic Voltametry, Chronoamperometry and other standard electrochemical methods
  • Software with external control via TCP/IP, LabView drivers on request 

Example of measuring with Kolibrik Potentiostat / Galvanostat

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  • Potentiostat for measuring EIS and improving performance and efficiency.
  • TEVOMET for temperature and voltage monitoring.
  • Cell Voltage Monitoring for testing of large batteries even including monitoring of voltage each individual battery cell in battery stack.


Areas of usual application

Whether you need to analyse electrolysers, fuel cells, batteries we have the right solution for you.


Electrolyzers use electricity to split water into hydrogen and oxygen, which can be used as clean and renewable fuels. For detailed EIS characterization, you can use our potentiostats for single cell research or for short stack evaluation. Our EIS source models can be used for characterization of full electrolyzer stacks.

Fuel Cells and Stacks

Fuel cells and fuel cell stacks convert hydrogen and oxygen into electricity and water, providing clean and efficient energy for various applications. We provide potentiostats for single cell research, zero-voltage loads for high-power fuel cell EIS characterization under high current conditions over 1000 Amperes, or EIS analysis solution for powerful stacks with multichannel EIS acquisition capability.


Lithium batteries, redox-flow batteries, etc. are essential for storing and delivering energy from renewable sources. They offer advantages such as long lifetime, good scalability, and seamless integration in the electrical grid. For batteries, you can use our high-current potentiostats or high-power EIS analyzers combining load and source modes in one device.

Custom designs

Didn't choose from our standard models? You need a higher current, more channels, a different configuration?
We will customize your testing setup according to your needs and preferences.

MegaEIS system

Choose a professional and efficient solution

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Want to learn how to improve the performance of your hydrogen solution?

If you’re looking for a smart and reliable way to measure and improve the performance of your fuel cells and electrolyzers, look no further than Kolibrik. Kolibrik is more than just a product. Kolibrik can help you measure and optimize the impedance of your high-power devices. Whether you need a standard or a customized variant, we can provide you with the best quality and price. It’s a solution that can transform your fuel cell or electrolyzer system and take it to the next level.

Contact us today and let us show you how Kolibrik can make a difference for you.

Use this form or on email info@kolibrik.net.