The more than 20 members of the Fraunhofer Battery Alliance direct their focus primarily on the development of suitable technical and conceptual solutions in the field of electrochemical energy storage devices, thereby taking particular account of the social, economic and ecological consequences, and transferring them into practical application. Both primary and secondary (rechargeable) systems thereby play a role: from the smallest applications, such as button cells, through to large stationary systems, such as redox flow batteries. The aim of the Alliance is to develop and further expand research in the field of electrochemical energy storage devices into a central business area. The competencies of the Fraunhofer Battery Alliance include the topics of materials, cell production, systems, simulation, and testing.

Together with the Fraunhofer IKTS and the Fraunhofer IFAM, the Fraunhofer IST operates the Fraunhofer Project Center for Energy Storage and Management Systems ZESS in Braunschweig, which addresses the production of innovative mobile and stationary energy storage systems and develops these to industrial maturity. One focus thereby is placed upon the manufacture of novel solid-state batteries, the so-called all-solid-state batteries (ASSB). The activities encompass the entire life cycle of battery systems - from raw materials through to battery recycling.