Fraunhofer Research Institution for Battery Cell Production FFB Be it solid-state batteries, sodium-ion batteries, lithium-sulfur batteries, or incremental innovations to existing lithium-ion battery cells, one thing is clear: the development of new generations of cells is advancing and new cell types are coming onto the market all the time. At the same time, there is still a lot of untapped potential in cell design to increase performance and energy density. During the development process, the questions and challenges are constantly changing. Fraunhofer FFB supports you in the conception, development, prototyping, validation, and evaluation of new battery technologies from the idea generation to the market launch.