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BMW Group And Solid Power Collaborate On All-Solid-State Battery Testing In BMW I7 Vehicle
The BMW Group has taken a significant step in battery technology by equipping a BMW i7 test vehicle with large-format, pure all-solid-state battery (ASSB) cells from Solid Power. This vehicle is currently being tested in the Munich area. ASSB technology offers higher energy density in a compact form, potentially extending vehicle range without increasing weight.
Since 2022, BMW and Solid Power have intensified their collaboration on ASSB technology through a technology transfer agreement. Their partnership aims to harness the potential of ASSBs, which promise longer ranges compared to current batteries without adding extra weight. John Van Scoter, CEO of Solid Power, stated, "Solid Power is extremely proud that our partnership with BMW has resulted in the first demonstration of truly all-solid-state battery cells in a vehicle."
Martin Schuster from BMW highlighted the company's commitment to innovation: "Our BMW i7 ASSB test vehicle on the road is a perfect example of the BMW Group's technology-open mindset." The integration of these innovative cells combines proven Gen5 construction principles with new module concepts for incorporating ASSB cells.
The collaboration between BMW and Solid Power began in 2016 under a Joint Development Agreement. This partnership was further strengthened by BMW's investment in Solid Power during a financing round in May 2021. By the end of 2022, both companies agreed to deepen their cooperation further.
Solid Power's unique business model involves selling its electrolyte to cell manufacturers and licensing its designs and processes. This approach sets it apart from competitors aiming to become commercial battery manufacturers. The company aspires to be a leading producer and distributor of sulfide-based solid electrolyte material for electric vehicles (EVs) and other applications.
BMW will operate a solid cell prototype line at its Cell Manufacturing Competence Center (CMCC) in Parsdorf using Solid Power's expertise. This initiative aligns with BMW's strategy to quickly implement innovations in battery cell technology through partnerships with over 300 entities, including established companies, start-ups, and universities.
BMW Group's Global Reach
The BMW Group encompasses four brands: BMW, MINI, Rolls-Royce, and BMW Motorrad. It leads globally as a premium manufacturer of automobiles and motorcycles while offering premium financial services. The company operates over 30 production sites worldwide and maintains a sales network spanning more than 140 countries.
In 2024, the group sold over 2.45 million passenger vehicles and more than 210,000 motorcycles globally. Its profit before tax reached €11 billion on revenues amounting to €142.4 billion. As of December 31, 2024, the workforce numbered 159,104 employees.
Sustainability remains central to BMW's corporate strategy, covering all products from supply chain management to end-of-life considerations. This long-term focus ensures responsible action across all operations.
The innovative cells developed by Solid Power were created alongside experts from the BMW Group. Further development steps are necessary for implementing ASSB technology into competitive storage systems.
The use of solid power cells with sulfide-based electrolytes will provide valuable insights during testing over the coming months. These findings will help refine operating pressure control and temperature adjustments within battery packs.
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