CUSTOMCELLS®: Cellforce Group GmbH: Joint Venture between Porsche and CUSTOMCELLS
21.6.2021 13:46:49 CEST | news aktuell GmbH | Press release

(Germany - Stuttgart / Tuebingen / Itzehoe): The latest step in the electric offensive: Porsche is investing a high double-digit million amount in the new company Cellforce Group GmbH. Porsche and joint venture partner CUSTOMCELLS today announced the launch of production of high-performance battery cells at the Weissach Development Centre. CUSTOMCELLS is one of the world’s leading companies in the development of special lithium-ion battery cells.
“The battery cell is the combustion chamber of the future. As a new Porsche subsidiary, the Cellforce Group will be instrumental in driving forward the research, development, production and sales of high-performance battery cells,” says Oliver Blume, Chairman of the Executive Board at Porsche. “This joint venture allows us to position ourselves at the forefront of global competition in developing the most powerful battery cell and make it the link between the unmistakable Porsche driving experience and sustainability. This is how we shape the future of the sports car.”
On the political side, Winfried Kretschmann, Minister President of Baden-Württemberg, Thomas Bareiß, Parliamentary State Secretary at the Federal Ministry for Economic Affairs and Energy and Boris Palmer, Mayor of the City of Tübingen, accompanied the official start of the company foundation. On the part of the companies involved, Oliver Blume, CEO of Porsche AG, Michael Steiner, Porsche Board Member for Research and Development, as well as Leopold König and Torge Thönnessen, the managing directors of Customcells Itzehoe GmbH, were on site. The new venture, in which Porsche has a majority stake of 83.75 per cent, has its headquarters in Tübingen. The university town is also on the shortlist for the location of the battery factory, which is to be located in close proximity to the research and development center in Weissach as well as the headquarters of Porsche AG in Stuttgart-Zuffenhausen. The number of employees is expected to grow from the initial workforce of 13 provided jointly by both companies to up to 80 by 2025. The Federal Republic of Germany and the state of Baden-Württemberg are funding the project with around 60 million euros.
“We founded CUSTOMCELLS with the aim of developing customer-specific battery cells for the most demanding of applications, and this is exactly what we can now realise together with Porsche. The goal for the planned production plant is to reach a minimum annual capacity of 100 MWh. This is equivalent to high-performance batteries for 1,000 vehicles,” according to Torge Thönnessen, CEO of CUSTOMCELLS. “We are not only contributing our expertise in cell technology and production into our partnership with Porsche, but also agility, innovative strength and individual problem-solving skills,” says Leopold König, CEO of CUSTOMCELLS.
“Porsche was founded as an engineering and development office in Stuttgart in 1931. To this day, you cannot purchase the technology that is at the heart of our high-performance sports cars. We develop it ourselves,” says Michael Steiner, Member of the Executive Board, Research and Development at Porsche. “That is why it is only logical for us to develop and build the key technology of the future – the battery cell – ourselves. It is just as logical that we first test this new high-tech in the most competitive of environments – motorsport. Our electric sports car Taycan also received key developments and its leading technical features from the race track, from the Le Mans-winning Porsche 919 Hybrid.”
The road to the joint venture and the partners
The idea for a manufacturing plant for high-performance battery cells came from an initiative of the P3 Group. The Stuttgart-based management consultancy developed the concept and submitted in 2019 a funding application with CUSTOMCELLS as part of the European IPCEI project EuBatIn (Important Project of Common European Interest – European Battery Innovation), which aims to build up a competitive European value chain for lithium ion batteries, based on innovative and sustainable technologies. From the automotive industry Porsche got involved as a project partner. This year P3 Group decided to maintain neutrality and independence in the market and not to be directly involved in the joint venture. P3 acts as a technology consultancy with a deep technical understanding in the field of battery cells and has concluded a long-term service contract with the Cellforce Group.
The idea for a manufacturing plant for high-performance battery cells came from the Stuttgart-based management consultancy P3 Group and CUSTOMCELLS, which already operates a small-scale production facility in Tübingen. In 2019, P3 and CUSTOMCELLS as part the autumn IPCEI EuBatIn (Important Project of Common Interest - European Battery Innovation). Porsche joined as a project partner from the automotive industry. For strategic reasons, P3 Group decided this year to act only as an external partner in order to continue working as an independent consultant with an in-depth technical understanding of the field of battery cells. Cellforce Group has signed a long-term service agreement with P3.
The contracts between Porsche and CUSTOMCELLS were signed on 21 May 2021. The Managing Directors of the new Cellforce Group GmbH are Markus Gräf as Chief Operating Officer and Wolfgang Hüsken as Chief Financial Officer from Porsche, and Torge Thönnessen as Chief Technology Officer from CUSTOMCELLS.
Contacts
Mike EisermannHead of Marketing & PRCustom Cells Itzehoe GmbH
Tel:+49 160 4351 596mike.eisermann@customcells.deImages

About news aktuell GmbH
news aktuell, a subsidiary of the Deutsche Presse-Agentur (dpa), provides companies, institutions and associations with effective access to both the media and consumers and supports the organizations in telling their stories easily and successfully. Utilizing the digital tools “ots” and “zimpel” PR content reaches all media formats, including classic print titles, wide-reach online portals or social networks. In addition, news aktuell publishes all of its clients' PR content on www.presseportal.de, one of Germany's widest-reaching PR portals. Thus, all relevant multipliers are reached worldwide, ranging from editors and digital influencers to specialist bloggers and interested consumers. Communications specialists from all over Germany rely on the expertise of the dpa subsidiary. news aktuell has been on the market since 1989 and employs over 135 people. The company is based in Hamburg. Further locations include Berlin, Frankfurt and Munich.
Subscribe to releases from news aktuell GmbH
Subscribe to all the latest releases from news aktuell GmbH by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from news aktuell GmbH
The Virchow Prize 2026 Awarded for Pioneering Work on Ebola, Advancing Global Epidemic Preparedness and Fostering Global Solidarity3.6.2026 12:37:54 CEST | Press release
Jean-Jacques Muyembe and Peter Piot are being honored with the international award of €500,000 for exceptional life-long leadership spanning five decades since the first outbreak of Ebola
Hidden AI agents could become the new gatekeepers of commerce, warns new Fintech 2040 paper3.6.2026 12:25:33 CEST | Press release
A new Fintech 2040 paper from Professor Roland Frank explores how AI agents are moving from passive assistants to autonomous actors capable of searching, selecting and purchasing products on behalf of consumers — fundamentally reshaping the future of ecommerce and payments.
OSD supplies Principality of Andorra with EU Standard Driving Licence and Advanced Personalisation System3.6.2026 09:00:00 CEST | Press release
Andorra/Vienna – The Austrian State Printing Company (OSD) is proud to supply the Principality of Andorra with a new EU‑standardized driving licence card and a fully integrated state‑of‑the‑art personalisation platform by OSD. The solution, delivered to the Andorran Departament de Seguretat Industrial i Vehicles (Ministeri de Presidència, Economia, Treball i Habitatge), went live in the end of 2025 and sets a new benchmark for security, usability and European compliance.
Westfalia-Automotive achieves debt forgiveness and release from all First Brands Group related claims1.6.2026 15:57:14 CEST | Press release
Rheda-Wiedenbrück, Germany – After successfully separating from First Brands Group in March 2026, Westfalia Automotive Group has completed a transaction resulting in debt forgiveness for group entities in the amount of approximately USD 246 million, as well as a release from all First Brands related claims.
Italian experts present Archimedes as a Caravaggio painting later completed by Mario Minniti1.6.2026 15:03:32 CEST | Press release
During a scholarly symposium in Monte Carlo on May 16, a team of Italian art historians led by Dr. Roberta Lapucci, Conservation Professor and Department Head at Istituto Lorenzo de’ Medici in Florence, presented research concerning the painting Archimedes (1608–1610).
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom
