We use cookies

We use cookies on our website.

Some of them are necessary for the functioning of the site, but you can decide about others.

Efficient Monitoring of Hydrogen Fuel Cell Stacks and Electrolyzers

With our cell voltage monitoring products, you can optimize your fuel cell performance, detect errors and extend your fuel cell lifetime.

Why is Cell Voltage Monitoring important?

Optimal working conditions

Cell voltage monitoring is crucial in many electrochemical and research applications to prevent damage of individual cells of fuel-cell stack, electrolyzers or battery, to monitor lifetime conditions and ensure optimal working conditions.

State of health

Cell voltage monitoring (CVM) is a technique that measures the individual cell voltages in a hydrogen fuel cell stack and provides valuable information about the state of health, performance and degradation of the cells. CVM can help detect and diagnose various faults and anomalies in the fuel cell system, such as gas starvation, flooding, membrane drying, catalyst poisoning, carbon corrosion and pinholes.

Fuel cells and electrolyzers

Discover our electronic technology measurement modules for fuel cell monitoring. Our CVM products can track the voltage of each cell in any fuel cell type, such as polymer electrolyte membrane (PEM), solid oxide (SOFC) and alkaline (AFC). Boost the performance and lifetime of your hydrogen energy devices with our fast and reliable multipoint cell voltage monitoring for electrolyzers or fuel cell stack.

Features for your hydrogen solution

Small and stackable

Whether you need to monitor a small or a large fuel cell stack, our products can adapt to your needs and provide you with the best solution. Our compact credit-card size modules are stackable up to 1280 cells or can be combined with other modules of the KMS system. This makes monitoring and management of fuel cells easy and efficient.




Seamlessly with your control system

You can plug and play our CVM modules on the DIN rail and use communication buses like CAN bus and RS-485/XC2 to your final automation solution or you can integrate it with rapid development modules such as Raspberry Pi to build complex control and monitoring solutions. This gives you affordable control over your cell and positively affects the stability and life of your fuel cell.





Fast and accurate voltage monitoring

Measure the voltage of each cell in a fuel cell stack in real time, with a high sampling rate and a wide voltage range. With our products, you can get the most out of your fuel cell system.





Double the Connectivity, Double the Control

Our solution supports both RS-485/Modbus and CAN interfaces, operating simultaneously for unparalleled flexibility and convenience. This means you can effortlessly connect your main control system via the CAN interface while simultaneously communicating with a computer through RS-485/Modbus. Ideal for R&D and support teams, our dual communication feature ensures you stay informed and in control of your fuel cell system at all times.

Which CVMs do you need?







CVM-32A CVM-24P CVM-64H

CVM-32A CVM-24P CVM-64H
Number of channels 32 24 64
ADC resolution 12 bits 24 bits 24 bits
RMS noise 1 mV 10 ... 100 μV 10 ... 100 μV
Galvanic isolation 500 V bus channels 1 kV bus channels 2.5 kV bus channels
Communication RS-485/Modbus
USB with KMS-PWR module
RS-485/Modbus, CAN
USB with KMS-PWR module
RS-485/Modbus, CAN
USB with KMS-PWR module
Voltage measurement range per channel ± 1.5 V ± 5 V ± 2.5 V
Whole battery/stack voltage measurement  With external KMS module With external KMS module With external KMS module
Automotive option  No Yes Yes
Chaining of multiple modules  Yes - up to 20 modules Yes - up to 20 modules Yes - up to 20 modules
Enclosure Yes, plastic Yes, plastic Yes, plastic





Example of measuring with Kolibrik CVM - Cell Voltage Monitoring



Buy CVM SETS

Contact us

References

Areas of usual application

Whether you need to monitor a car, a power plant, a generator or a spacecraft, we have the right solution for you.

Electrolyzers

Our CVM products are designed to provide fast and reliable cell voltage monitoring for electrolyzers. This ensures the safety of the electrolyzers and the operators. Our products can help you prevent corrosion and degradation of the materials, and optimize the energy efficiency of the electrolyzers.

Fuel Cells

Our CVM products let you monitor and optimize your fuel cells with ease and efficiency. They can measure the voltage of each cell in any fuel cell type, such as PEM, SOFC or AFC. They can also prevent damage, degradation and inefficiency. With our products, you can get the most out of your fuel cell system.

Batteries

Our CVM products are designed to provide fast and reliable cell voltage monitoring for flow batteries and can also be used for different types of batteries, such as lithium-ion, lead-acid, nickel-metal hydride. They can measure the voltage of each cell.They can also detect and diagnose any cell faults or degradation processes that may affect the performance and lifetime of the batteries.

Ground Transportation

Fuel cells are used to power electric vehicles, buses, trains and other modes of transportation that require clean and efficient energy sources. However, fuel cells are subject to degradation and inconsistency due to various factors such as load changes, temperature variations, gas stoichiometry and contamination. Therefore, it is important to monitor the voltage of each cell in a fuel cell stack to detect any abnormal or critical operating conditions that may affect the overall system performance or cause irreversible damage.

Maritime & Shipbuilding

Fuel cell stack voltage monitoring is a vital technology for ensuring the reliability and performance of fuel cell systems in shipbuilding and navy applications. Fuel cells are used to power ships, submarines, boats and other marine vehicles that require clean and efficient energy sources. It is essential to monitor the voltage of each cell in a fuel cell stack to identify any abnormal or critical operating conditions that may harm the overall system performance or cause permanent damage.

Aerospace & Aviation

Fuel cell stack voltage monitoring is a key technology for ensuring the safety and performance of fuel cell systems in airplane and aerospace applications. Fuel cells are used to power aircraft, rockets, satellites and other aerospace vehicles that require clean and efficient energy sources.To prevent irreversible damage to the overall system performance, fuel cell stack voltage monitoring is required to detect any abnormal or critical operating conditions.

Customized solution for your fuel cell or electrolyzer system

Custom cell voltage pickups

Every battery system is unique, which is why we offer customised cell contacts. Our customised cell voltage pickups are designed to fit your specific battery system, ensuring accurate and reliable monitoring of your cells' voltage levels. Our team of experts will work closely with you to create cell contacts that are tailored to your system's specifications, allowing for optimal performance and precision. With our customised cell contacts, you can be confident in the accuracy of your cell voltage measurements and the overall health of your battery system.

Custom design

We also offer custom designed variants for mass production. If you have specific requirements or needs for your fuel cell or electrolyzer system, we can tailor our products to suit your specifications. We can adjust the number of channels, the maximum current, the communication interface or protocols, and other features according to your preferences. We can also provide you with competitive prices and high-quality products for mass production. With our products, you can get the best solution for your application.

Custom harnesses for your system

We understand that every system has different requirements and specifications. That’s why we offer custom harnesses that are tailored to your needs and compatible with our cell voltage monitoring solutions. Whether you need a specific length, connector type, wire gauge, or color coding, we can design and manufacture a harness that meets your expectations and ensures a reliable and safe connection.

Some of our customer references

"We perform Cell Voltage Monitoring with Kolibrik CVMs on every single cell in the entire stack simultaneously. We see this as a necessary part of the system to ensure on going diagnostics of the stack."

"We really appreciate Co. Kolibrik’s technical support that is very flexible to help at any time is needed. They are very proactive to address our needs and willing to update their solution to fit our requirements."

"We use Cell Voltage Monitoring in our electrolyzers in order to diagnose and prevent possible malfunction and consequently extend the lifetime of the cells."

Choose a professional and efficient solution

Join companies that use Kolibrik

References

Contact

Want to learn how to extend your fuel cell lifetime of your hydrogen solution?

If you’re looking for a smart and reliable way to monitor and optimize your cell voltage, look no further than Kolibrik. Kolibrik is more than just a product. Kolibrik can monitor and optimize your cell voltage in any situation and configuration. Whether you need a standard or a customized variant, we can provide you with the best quality and price.

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.