CHAPTER 10. Organic and Organic–Inorganic Composite Solid Electrolytes

The development of high-performance electrolytes, which possess high ionic conductivity, good chemical and electrochemical stabilities, and robust mechanical properties, is essential to realizing the next-generation rechargeable Li-ion batteries with higher energy and power densities and superior safety. Solid electrolytes are considered to be promising replacements for conventional liquid electrolytes, which are flammable and incompatible with Li metal anodes. Organic solids, including organic ionic plastic crystals and polymers, and organic–inorganic composites have attracted attention in recent decades owing to their favourable flexibility and good wettability. Advanced solid-state NMR techniques are powerful tools in the study of the structure and ion dynamics of organic and organic–inorganic composite solid electrolytes, which will be discussed in detail in this chapter.