Supported by Innovation Norway.

In 2018, NCCE was engaged by AS Batteriretur to follow the development of a project focusing on the discharge, charging and distribution of residual energy. The project has been supported by Innovation Norway's Environmental Technology Scheme.


All lithium-ion batteries have a residual energy which, for safety reasons, must be discharged under special conditions. Battery return ensures that used batteries are treated in accordance with regulations and recycled so that the energy that is still in the batteries can be taken care of and used in another way.

Discharging lithium-ion batteries is necessary for safety reasons. Even with a low voltage in the battery, heat generation can occur with the dangers it can entail. The batteries that are removed from a car are taken apart into different parts and sorted for recycling. The actual modules that make up the battery are also stripped and discharged. Once that is done, the modules are exported for further destruction as well as recycling of the various metals that the modules are made of.

Reduced time for discharge

The amount of energy is also of great importance. Through the preliminary project, AS Batteriretur has managed to significantly reduce the time for discharging. At the same time, they have developed equipment that transfers the discharged energy to direct use for light and heat or for storage on fresh and often used batteries. In this context, "battery racks" have been delivered to the solar cell plant that Borg Havn has developed on Øra

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