A strategic partnership has been established, ushering in a new era in electric vehicle batteries. Automotive giant BMW, technology giant Samsung SDI, and US-based solid-state battery developer Solid Power have partnered to commercialize all-solid-state batteries (ASBs).

BMW and Samsung Collaborate

This trilateral collaboration accelerates the transition to mass production of safer and more efficient systems compared to the current lithium-ion batteries used in electric vehicles.

Under the new agreement, Samsung SDI will supply all-solid-state battery cells using Solid Power’s sulfur-based solid electrolyte solution. The sulfur-based electrolyte is known for its high ion conductivity and thermal stability.

BMW will use these supplied cells to develop battery modules and packs. Solid Power states that this partnership is a critical step in the widespread adoption of solid-state batteries.

Samsung SDI has long been investing in next-generation battery technologies. The company opened a pilot production line in South Korea in March 2023 and completed the first prototype production by the end of the year. Samsung sent these prototypes to numerous automotive manufacturers as samples. BMW has begun field testing the technology.

The German manufacturer conducted its first road tests with a modified i7 prototype equipped with Solid Power’s solid-state battery cells in May 2025. BMW plans to launch production vehicles using this new technology around 2030.

Solid-state batteries have the potential to fundamentally change electric mobility by offering higher energy density, shorter charging times, and improved safety compared to current lithium-ion systems. This potential is intensifying competition between global automotive and technology giants.