Research Projects

All-solid-state Li-ion batteries (ASSLiB) gained high attention over the past few years and considered as the next generation battery technology due to overwhelming advantages including high energy density and safety. So far, the ASSLiB research field is dominated by the development of solid electrolytes (SEs) as well as cathodes while the development of anode materials has been hardly explored and the research efforts are still at an early stage. Therefore, this research project (CAASS) intends to develop a new hybrid anode material based on Sn with ‘carbon’ compounds. For that, a range of Sn containing carbon (i.e. bulk Sn/graphite, Sn/graphene, Sn/hard carbon) composites are planned to be developed as an alternative for Li metal anode and will be studied for their Li+ storage characteristics in solid-state configuration. In addition to the material development and optimization of ASSLiB cell fabrication, the present CAASS project will aim to understand fundamental challenges associated with ASSB studies including volume changes of the electrode (Sn), the mechanism for Li+ storage under solid-state configuration, and the stability of electrode-electrolyte interphase. This will be done by in situ electrochemical dilatometry (ECD), in situ pressure monitoring measurements, and ex-situ X-ray diffraction studies.