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Press Release

Calyos joins the CoolBatt project: A New Passive Thermal Architecture for Safer e‑Bike Battery Packs

Location:

Charleroi, Belgium

DATE:

March 2, 2026
Calyos joins the CoolBatt project: A New Passive Thermal Architecture for Safer e‑Bike Battery Packs

All e‑mobility battery packs share the same essential requirement: safety. For this reason, we joined the Development of Smart Nanomaterials & Cooling System for Safer E‑Bike Batteries project under the EUREKA Eurostars program. Led by the company Birikim Pilleri, the CoolBatt project aims to create a hybrid thermal system that helps prevent thermal runaway and improves safety, durability and performance of lithium‑ion batteries.

The approach relies on two key innovations:

Heat storage with Encapsulated Phase Change Materials (PCM)

Encapsulated PCM absorb excess heat and stabilize the temperature of the battery pack. The encapsulation prevents leaks and supports better thermal conduction, which leads to more uniform heat distribution.

Passive Two-Phase cooling with Calyos Micro‑Channel Heat Pipe (MCHP)

The system also integrates the ultra‑compact, pump‑free MCHP technology from Calyos. This technology transfers heat efficiently without any additional energy consumption.

Intended Benefits for e‑Bike Battery Packs

The combination of these two technologies aims to:

  • Stabilize battery temperature under extreme conditions such as intensive use or high ambient temperatures.
  • Lower the risk of thermal runaway, an issue that has become increasingly common.
  • Extend battery lifetime, which contributes to durability and a reduction in electronic waste.

A Clear Direction for e‑Mobility

Moving to 100% passive, waterless cooling helps the e-Mobility sector to achieve higher performance, reduce failure points and simplify maintenance and integration.

We are proud to support this evolution and to contribute directly to its progress.

Do you face constraints related to thermal performance, safety, cost or available pack volume when you design or integrate a battery pack?

Let's discuss.

info@calyos-tm.com

Further reading:

Eurostars programme

About Calyos

Who We Are
Calyos is a leader in the design and manufacture of two-phase thermal management systems. Building on our heritage from Euro Heat Pipes (EHP) and their space technology expertise, we specialize in innovative cooling solutions that tackle the thermal challenges of tomorrow.
What We Do
We engineer advanced cooling technologies, including loop heat pipes, micro-channel heat pipes, and pulsating heat pipes, to optimize thermal performance across a variety of applications. Typically these include: power electronics, processors, and batteries, but we don't stop there we are continuing to develop and produce fully customizable solutions for other specific needs, for example e-motors and fuel cells.
Where We Operate
Calyos is headquartered in Charleroi, Belgium, where our engineering and production teams work side by side in a state-of-the-art facility. From this base, we serve a global clientele, providing our cutting-edge solutions across North America, Asia, Europe, and South America.
When We Started
Calyos was incorporated in 2014 as a spin-off from Euro Heat Pipes (EHP), which was established in 2001 and has become a major player in the European satellite market. Since then, Calyos has been adapting and evolving EHP's space-grade cooling technologies for terrestrial applications.
Why We Matter
Our mission is to lead the industry towards adopting the most effective and sustainable thermal management solutions. We aim to address the most pressing thermal challenges in the data-driven and electrified environments of today, leveraging passive cooling technologies to achieve superior efficiency and environmental stewardship.
How We Succeed
Our success is driven by our commitment to four core values:
1. Applied Knowledge - Transforming deep technical expertise into market-ready solutions.
2. Better Together - Emphasizing collaboration with all stakeholders to enhance our collective success.
3. Inherent Flexibility - Adapting our solutions and practices to keep pace with evolving market demands.
4. Continuous Research - Persistently innovating to maintain our leadership in thermal technology.

Media contact

info@calyos-tm.com

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