Switzerland’s Phenogy AG and Germany’s HD Advanced Technologies (HDAT), a wholly-owned subsidiary of Heidelberger Druckmaschinen AG, are set to collaborate on developing and manufacturing sodium-ion battery cells in Europe.
The plan forms part of a strategic partnership between the two companies which will also see HDAT handle the industrial manufacturing of complete energy storage systems for Phenogy.
HDAT and Phenogy plan to develop sodium-ion battery cells via a joint venture company. A statement published by the partners explains the joint venture will see them combine their core competencies.
“Phenogy will contribute its sodium-ion cell chemistry and cell design, while Heidelberg will provide its specialized printing process,” they explained. “Together, the partners cover the entire spectrum from research and development to the production of sodium-ion battery cells on an industrial scale. This enables the development of innovative cell formats with specific requirements for design and performance parameters.”
The statement adds that work is underway to meet the necessary prerequisites. The joint venture will focus on applications with high requirements, ranging from critical infrastructure and defense to mobility.
Under the manufacturing agreement, HDAT will implement the industrial production of cabinets, containers, and other system products for Phenogy across the entire value chain based on a long-term framework supply agreement. The agreement will initially cover Germany and Europe, with plans to extend to the US in the future. Production will be based on local supply chains and HDAT’s manufacturing and industrialization expertise, the companies added.
“Both agreements represent fundamental steps toward establishing a European technology and industrial platform for sodium-ion battery technology – ranging from cell chemistry, cell and system design, and industrial manufacturing to service and maintenance,” their statement explained.
Phenogy CEO Peter E Braun said the partnership bridges the gap between technology development and the capabilities needed to make these technologies available on an industrial scale.
“Europe needs battery technologies to achieve true energy sovereignty,” Braun added. “We are thus supporting the planned Europe-wide expansion of energy storage with locally manufactured battery storage systems. At the same time, the joint venture opens new potential applications for our sodium-ion technology.”
Phenogy entered the European energy storage scene in September 2025 with the launch of a megawatt-hour-scale sodium ion energy storage system deployed at a commercial site in northern Germany.
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