Technology

As a leader in energy storage battery systems, Nilar’s focus is ensuring that every product leaving our factory meets the highest standards. Nilar puts significant investment in research & development as well as in our manufacturing facilities. All steps in our production process are performed at our state-of-the-art factory in Gävle, Sweden, powered by 100% renewable energy.

Production process

These are the steps that take raw material into batteries ready for implementation into energy storage systems. Keep reading to find out how each step is performed and learn about how your battery is created with utmost quality in mind.

Electrode manufacturing

The ingredients of our electrodes are combined in exact concentrations to make the active material. This active material is then pressed onto a scrim to create either the positive or negative electrode. The process is very simple and requires no heat treatment or similar.

Automated module assembly

The electrodes are carefully weighed and paired together inside a casing with a separator in between; this is the so called battery cell. The battery cells are then stacked in top of each other with conducting biplates in between and, finally, enclosed in a laser welded casing. The battery module is now assembled.

Laser welding

Each module is laser welded together, making sure that the contents are completely contained from the environment. This process utilizes the different transparencies of the module casing. The laser is able to pass through one side of the module and heat up the other, creating a weld between the two sides.

Battery pack assembly

By stacking multiple battery modules, the pack can be created with different voltages, where more modules means a higher voltage. The packs are compressed and bound together with steel bands.

Learn about the different parts in our battery pack →

Begin reading about our module design →