Imagine if you could cool a battery from the inside out rather than just blowing air over the surface. This technology uses a special 3D extrusion process to create aluminum parts that act like a high-tech radiator for battery tabs. It's like upgrading from a basic fan to a precision liquid-cooling system, making batteries charge faster and last much longer.
Current EV battery cooling is mostly surface-based, which limits charging speed and shortens battery life. Existing high-performance cooling solutions are too expensive or complex for mass production.
A 3D extrusion manufacturing process (z.trusion®) and a 2000m2 test center to produce aluminum profiles with integrated cooling channels for battery tabs.
If you are an EV OEM dealing with slow charging speeds and battery degradation — this project developed a tab-cooled battery pack solution that can triple cell lifetime. It uses z.trusion® technology to lower production costs by 95% compared to traditional methods.
If you are a battery pack assembler dealing with high manufacturing costs for thermal management — this project developed a 3D extrusion process that works with cylindrical, prismatic, and pouch cells. It enables mass production at low cost with minimal environmental impact.
If you are a sustainable transport developer dealing with the environmental footprint of battery production — this project developed a manufacturing process that reduces environmental impact while improving safety. The solution ensures batteries are more recyclable and efficient.
The technology can achieve production costs that are 95+% lower than traditional manufacturing alternatives.
The project is establishing a 2000m2 test center in Mölndal and has selected Prizma Engineering to deliver the aluminum extrusion line for mass production.
Based on available project data, the z.trusion® technology is proprietary to Reliefed AB, though specific licensing terms are not disclosed.
The technology is compatible with various cell formats, including cylindrical, prismatic, and pouch cells, and is currently being adapted for Polestar's battery architecture.
The project period runs from 2023-01-01 to 2026-09-30, with current activities focusing on commissioning the test lab and ordering physical mockups.
The project is led by a single Swedish SME, Reliefed AB, indicating a lean, high-control ownership of the technology. While the consortium is small (1 partner), the business risk is mitigated by a strategic industrial cooperation with Polestar, ensuring the technology is developed against real-world automotive requirements.
Contact Reliefed AB in Sweden regarding z.trusion® licensing
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