Advances in liquid metal composites: properties, applications, and future prospects

The field of liquid metals (LMs), metals and alloys of low melting point made of post-transition metals, offers exciting prospects for the creation of remarkable composite materials. By providing a liquid state at low temperatures, LMs can act as primary components in conductive and flexible composites involving organic and inorganic materials. In this review, we present a succinct examination of LM-based composites and highlight their notable characteristics. We discuss the contributing factors of low melting points and exceptional thermal and electrical conductivities. Last, we showcase various types of composites utilizing LMs, elucidating their synthesis methods and applications in advanced technologies.