On October 31st local time, BMW Group and Solid Power jointly announced that Samsung SDI will join as a new partner in their all-solid-state battery (ASSB) technology collaboration. The three parties will work together to promote the development and verification of next-generation all-solid-state batteries.
It is understood that since 2022, BMW Group and Solid Power have strengthened their ASSB technology R&D activities through a technology transfer agreement. Recent milestones include integrating large-size pure ASSB cells from Solid Power into a BMW i7 technology test vehicle. Under the new tripartite agreement, Solid Power will supply its sulfide solid electrolyte to Samsung SDI. Samsung SDI will be responsible for integrating this electrolyte into the separator or positive electrode solution and using it to manufacture battery cells. These cells will be evaluated by BMW Group according to the performance parameters and requirements agreed upon by both parties. The ultimate goal of the three parties is to develop and supply ASSB cells for integration into next-generation evaluation vehicles.
Compared to current mainstream liquid electrolyte battery technologies, all-solid-state batteries promise to achieve higher energy density and greater safety by using solid materials instead of liquid electrolytes. Higher energy density means that a longer vehicle range can be achieved without increasing the total weight of the energy storage system.
