The pilot line at Fraunhofer IKTS, situated in Hermsdorf,
Innovative tools and machinery have been developed and implemented specifically for producing the battery cells required for the 60 kWh prototypes. The battery pack is composed of (R)240 CERENERGY cells, each rated at 2.5 V. These cells are organised in 4 rows, each comprising 12 cells, and stacked 5 modules high. The dimensional specifications of the battery packs are 2.6 meters in height, 0.4 meters in length, and 1.0 meter in width. Ensuring adherence to the Ingress Protection (IP) 65 standard, the packs are designed to be dust and weatherproof, reflecting high levels of sealing effectiveness for electrical enclosures.
All prototype materials have now been procured from specific suppliers. The crucial stages in cell production involve blending ceramic components, high-pressure pressing, tube formation, and ultimately sintering at 1,600 degrees celsius over a span of several days. Fraunhofer IKTS' Hermsdorf pilot plant facility successfully navigated the entire ceramic tube production, with half of the required tubes now manufactured. The battery cathode electrolyte, comprising sodium chloride and nickel powder granules, was produced using the mixing and pelletising equipment at the Hermsdorf pilot plant. The process of cell assembly, encompassing vacuum filling, heating, and welding, is ongoing, resulting in the completion of approximately half of the cells. To facilitate the infiltration of cathode material into multiple battery cells simultaneously, a vacuum chamber was developed. Promising pass results were obtained from laser welding tests
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The joint venture is commercialising its CERENERGY(R) battery, with plans to construct a 100MWh production facility on Altech's land in
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