Company Porsche and its partner Customcells, specialist in special (unusual) lithium-ion batteries, have announced the launch of high-performance battery elements in the Development Center in Weissach. The auto giant owns 83.75% of the shares in the joint venture. The new joint venture, called the Cellforce Group, is headquartered in Tübingen. The same city is being considered as a candidate for the construction of a larger plant of promising cells. Conveniently, Tübingen is not particularly far from Weissach and the Porsche AG headquarters in Stuttgart-Zuffenhausen.
The new cells use silicon as the anode material. It provides an increase in power density and the same energy content in a smaller size than current serial cells. These batteries have lower internal resistance, which allows more energy to be absorbed during recuperation and faster recharge. Such a cell also tolerates high temperatures well. An important partner in the project is the giant BASF, which supplies the high-energy cathode materials HED NCM. So far, the JV employs only 13 people, but by 2025 their number will grow to 80. Cellforce Group is going to produce at least 100 MWh of high-power batteries per year. Porsche CEO Oliver Blum, explaining the importance of the venture, said: “The battery is the combustion chamber of the future.”
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