Solid electrolyte technology: from precusors and raw materials to securing full value chain

All-Solid-State batteries (ASSB) are the next step in automotive battery technology with regard to increased energy density and safety. The higher energy density allows for more capacity in the same installation space and therefore for longer driving ranges; in addition, the solid electrolyte technology opens space for higher charging rates.

In ASSBs, solid electrolytes are key performance components to reach energy density and safety targets; sulfidic solid electrolytes (SSE) are considered the most promising class of materials.Here, solid electrolytes and precursor materials, especially lithium sulfide, are critical compounds regarding properties of ASSBs.

The availability and, in parallel, high quality of base material are key for performance and stability; AMG is positioned as backward integrated supplier of lithium containing compounds with secured raw material sources allowing for complete control over quality and availability.

Starting from the AMG-owned mine in Brazil, AMG Lithium produces Lithium Hydroxide Battery Grade which serves as both lithium source for cathode active materials and, more importantly, as controlled source for the production of lithium sulfide for SSEs. In order to serve the market demand, the production capacities for lithium sulfide are constantly adjusted to market needs. In parallel, material properties are adjusted based on close exchange with customers and a deep understanding and performance evaluation on the solid electrolyte level.