Another pivotal factor to consider is the jump distance, denoted as a. A larger value of a is conducive to achieving fast ion conduction; nevertheless, it can potentially lead to structural instability. Similarly, a high cationic concentration is directly proportional to enhanced ionic conductivity, but an excessive number of cations can result in cation-cation repulsion, obstructing the diffusional pathways for cations. Intriguingly, increasing the number of vacancies is also conducive to facilitating rapid cationic conduction. However, this must be balanced against the potential drawbacks of reducing carrier concentration and introducing structural instability. In this context, maintaining a vacancy concentration of around 50% is deemed optimal for achieving the highest ion conduction rates.