Development of a cycle-stable high capacity Li2S-Si Battery - ACHiLiS

Project summary

State-of-the-art Li-S battery has safety concerns since it uses elemental lithium as anode that leads to the formation of lithium dendrites during cycling. A solution to this safety problem is to use a high capacity anode material other than elemental lithium, while replacing sulfur in the cathode with its lithiated counterpart, Li2S. Electrolytes are also significant concerns in Li-S battery because of the shuttling effect arising from the dissolution of polysulfides in the liquid electrolyte. In the presented project, all parts of the battery: cathode, anode, and electrolyte are in focus of research to develop a new and improved battery system. The research will be supported by computational simulation, and an industrial partner will integrate and construct all components for actual applications. Finally the new battery will be also recycled to show a good life cycle.