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BMW Is Now Testing EVs with All-Solid-State Batteries, the 'Holy Grail' of EV Battery Tech
- BMW began testing an i7 electric sedan equipped with all-solid-state batteries supplied by Solid Power in Munich in 2025.
- This testing follows BMW's partnership and licensing agreement with Colorado-based Solid Power, deepened in 2022 to develop solid-state battery technology.
- The test vehicle uses concept prismatic cell batteries combining proven architecture with new design modules to evaluate real-world performance aspects like cell expansion and temperature.
- Solid Power offers energy densities ranging from 390 to 560 Wh/kg and volumetric energy densities up to 930 Wh/L, while BMW emphasizes advantages such as significantly quicker charging times, increased driving distance, and a substantial reduction in carbon emissions during production.
- BMW views these tests as important but does not expect to deploy solid-state batteries in production EVs until mid-2030s unless breakthroughs reduce costs and simplify mass production.
35 Articles
35 Articles
A Breath or Salvation? BMW Begins the Test of Electric Cars with Solid State Batteries
When it seems that everything is said in the automotive industry and with the traditional brands among the ropes by the Chinese firms, BMW appears with the announcement that is testing in Europe its first electric vehicle with solid state battery, thus intensifying the race in the era of electromobility. A small breath and a milestone for the Munich firm, this is seen the official announcement of BMW with its modified i7 and that is testing in r…
All-Solid-State Battery Cells are tested in a BMW i7
The BMW Group is bringing large-format, pure ASSB cells from Solid Power to its test vehicle, a BMW i7, which is being operated in the Munich area. The potential benefits of ASSB technology: higher energy density in a very compact storage system compared to current technologies. The concept battery integrated in the BMW i7 test vehicle combines proven Gen5 construction principles (prismatic cells...
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