Cellforce to assemble 1 GWh of high-performance battery cells

Cellforce, the joint venture between sports car manufacturer Porsche and battery maker Customcells, is planning to produce ten times more battery cells than originally planned. At a ceremony, laying the foundation stone for its first plant near Tübingen in the south of Germany, the company said it aims to make 1 GWh of high-performance cells instead of 100 MWh.

Boosting its production capacity means that the plant will annually be able to provide roughly 10 000 vehicles with battery packs. In addition, Cellforce claims that it is developing a new standard for high-performance batteries, though details remain scarce.

Silicon instead of graphite

As we reported before, Porsche wants to pursue its own path for battery cell applications and is likely swapping the usual graphite with a silicon-based anode. This should enhance thermal stability at the cell level and make them cope better with fast charging. These battery packs would, according to Porsche, play a role in motorsports.

It is also known that Cellforce works together with Dürr, a machinery specialist that developed a method to coat both sides of the electrodes simultaneously, significantly accelerating the precision, quality, and speed of the manufacturing process. Unfortunately, Cellforce doesn’t communicate when the plant will be ready.

Steep ambitions

At the inaugural ceremony for the construction works of the facility, Porsche deputy CEO Lutz Meschke confirmed Porsche’s steep ambitions with Cellforce: “As a manufacturer of luxury electric vehicles and high-performance sports cars, we want to be among the leaders in the global competition for the best-performing battery cell,” he vowed. Though unconfirmed, the sports carmaker is thought to have invested 100 million euros in the joint venture.

As the construction of the cell manufacturing plant is part of Germany’s – and Europe’s – catch-up plan on large-scale battery production, Cellforce also receives state funding. The state of Baden-Württemberg, aiming to become an epicenter of battery production in Europe, is investing 43 million euros. The State of Germany injects 17 million euros.

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