Li17Sn4

Li17Sn4 is an intermetallic compound in the lithium-tin system, representing a ceramic/intermetallic phase that forms at specific lithium and tin ratios. This material is primarily of research interest for energy storage and advanced battery applications, where lithium-rich intermetallics are explored as potential anode materials or structural components in next-generation lithium-ion and solid-state battery systems. Its relevance stems from the high specific capacity of lithium combined with tin's electrochemical activity, making it a candidate phase for improving energy density, though practical deployment remains limited compared to established graphite or silicon-based anodes.