Hand holding tab cooled battery pack

EV batteries – groundbreaking concept for energy storage

Efficient battery packs are a necessity for the transition to electrified mobility. They must be light, strong, thermally regulated, recyclable and cheap. The innovative, tab cooled battery pack concept developed with the z.trusion® technology solves all that. Plus, it is scalable and easily integrated in vehicle structures.

z.truded® EV battery pack with blue batteries
Hand placing battery in battery pack

The concept development is supported and empowered by Fraunhofer IWU, Micropower Group, Semcon and Jönköping University.

Modularity enables multiple savings

Realising a rational and cost-efficient way to solve the holy grail of battery cooling means long term substantial savings both for the battery cell itself and the eco-system around it.

Potential improvements


Reduced number of parts


Weight reduction


Increase in cell lifetime


  • Tab cooled
  • Light weight and strong
  • Fully integrable in vehicle structures
  • 47% less temperature rise compared to Tesla solution in simulations at 6C charging
  • 57% lower delta T in cell compared to Tesla solution in simulations at 6C charging
  • Physically validated at RISE (Research Institutes of Sweden) battery test center in Sweden


  • 50% less material
  • 80% less parts
  • Battery lifetime increased 2–3 times


  • Lowering the environmental impact of energy storage systems all the way from manufacturing to recycling
  • Making EV:s, electro mobility and energy storage systems more accessible by reducing costs
Official battery project partners