A Performance and Cost Overview of Selected Solid-State Electrolytes: Race between Polymer Electrolytes and Inorganic Sulfide Electrolytes

Electrolytes are key components in electrochemical storage systems, which provide an ion-transport mechanism between the cathode and anode of a cell. As battery technologies continuous development, there has been growing demand for more efficient, reliable environmentally friendly materials. Solid-state lithium ion batteries (SSLIBs) considered as next-generation energy systems solid electrolytes (SEs) these systems. Compared to liquid electrolytes, SEs thermally stable (safer), less toxic compact (lighter) design. However, main issue is ionic conductivity, especially at low temperatures. So far, two popular types SEs: (1) inorganic (InSEs) (2) polymer (PEs). Among InSEs, sulfide-based providing very high conductivities (up 10?2 S/cm) they can easily compete with (LEs). On other hand, much expensive than LEs. PEs be produced cost InSEs but their still not sufficient higher performances. This paper reviews most efficient compares them terms performances costs. The challenges associated current state-of-the-art cost-reduction potentials described.