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Batteries

Advancements in battery chemistry combined with demanding user needs such as fast charging are resulting in battery packs becoming increasingly difficult to thermally manage.

Increased energy density is resulting in higher heat flux.
Faster charging speeds are resulting in more heat dissipation.
Lifetime is reduced if cells are not kept within 3°C of each other.

Which types of batteries can be cooled?

Calyos provides solutions for the three most common types of cells.

Prismatic Cells

Pouch Cells

Cylindrical Cells

What solutions does Calyos offer?

Calyos' primary solution for battery cooling uses our Micro Channel Heat Pipe technology.

Micro Channel Heat Pipes

MCHPs are a hybrid HP-PHP solution that remains a simple and lightweight ultra-efficient cooling solution.

Why this solution?

Placed in between cells, these tiny heat pipes can assist in both warming and cooling cells. The cross sectional shape can be completely customised and these solutions are incredibly cost effective to mass produce. Using a dielectric refrigerant inside removes the risk of short circuits, maintaining Calyos' fit-and-forget reliability.

Low cost, lightweight, unique aluminium heat pipe design provides passive heat dissipation.
Thin extrusion easily surrounds battery cells increasing the surface area of heat exchange.
Dielectric fluid poses no risk of short circuits and is sealed within the heat pipe.

How can you customize this solution?

Bends

Customize angle and location of bends to enable better integration within a battery pack.

Length

Customize the length based on the geometry of the cell.

Width & Thickness

Customize both the thickness and the width of the MCHP.

Cross Section Profile

Design new cross sectional shapes
(such as this triangular concept) to suit your geometry.

Our two-phase cooling systems always bring three clear benefits:

Passive & Pump Free

Ultra Reliable & Zero Maintenance

High HTC & Low Thermal Resistance

Use Cases

There are thousands of use cases for our technology. Here we have selected a few examples to give you an idea of how our solutions can be used. Don't be afraid if you have something different - reach out to us and we can validate the application through an initial feasibility analysis.

request feasibility Analysis
Our solution eliminated the temperature difference between the top and bottom of the cells, while also reducing the Delta T between the cells and the water cold plate.

E-Mobility

:

Research

Pouch Cell

Our solution eliminated the temperature difference between the top and bottom of the cells, while also reducing the Delta T between the cells and the water cold plate.
Providing an upgrade to an existing OEM battery pack, adding 2 'L' shape MCHPs per cell improved the charging speed by 25%, while also lowering intra- and inter-cell temperatures to below 2°C.

E-Mobility

:

Automotive

Prismatic Cell

Providing an upgrade to an existing OEM battery pack, adding 2 'L' shape MCHPs per cell improved the charging speed by 25%, while also lowering intra- and inter-cell temperatures to below 2°C.
Our solution was designed to remove 5.5kW of thermal power from the batteries to enable ultra-fast charging. Our MCHP-BT solution involved 45 heat pipes, each removing 122W of thermal power.

E-Mobility

:

Motorsport

Cylindrical Cell

Our solution was designed to remove 5.5kW of thermal power from the batteries to enable ultra-fast charging. Our MCHP-BT solution involved 45 heat pipes, each removing 122W of thermal power.

Downloads

Our solution sheet includes on general specification, operating information, system materials and typical evaporators and condensers.

Download Solution Sheet

Let's Get Started

Schedule an introductory call with one of Calyos' two-phase experts.

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