Lithium-, Sodium-, and Potassium-Ion Conductors

Quite a large variety of interesting fast lithium-ion solid conductors is now known, as compiled in Fig. 9 and Table 1. In the case of sodium- and potassium-ion conductors only the -alumina fam- 

For lithium, counterparts structurally related to the sodium- and potassium--aluminas and NASICON with similar high ionic conductivities were not found, possibly because of the small ionic 

For hthium, counterparts structurally related to the sodium and potassium and NASICON with similar high ionic conductivities were not found, possibly because of the small ionic radius of lithium. Therefore, much intensive work has been done on developing lithium-ion sohd conductors during recent years, in view of the interest in high-energy-density batteries. 

Generally, the interpretation and reliability of published experimental data for solid electrolytes should be regarded with care. The most important experimental methods are presented in Section 19.6. 

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