illustrates the effect of IL content and UV-crosslinking on the ionic conductivity of the prepared SPEs. Compared to systems without IL (SPE10:1), adding IL significantly increases the ionic conductivity, with more than three orders of magnitude improvement from 1.5 x 10 -7 S cm -1 for IL-free SPE10:1 to 4 x10 -4 S cm -1 for SPE10:1:1 at 30°C as reported in our previous study, suggesting the substantial role of IL in enhancing ionic conductivity. After crosslinking, SPE10:1:1-CL shows a slight decrease in conductivity, consistent with an overall high salt content system. Crosslinking generally increases the formation of amorphous phases that facilitate conductivity in systems with high polymer content. However, it can also restrict polymer chain movement, hindering ion transport. This effect is particularly noticeable in systems with low polymer content that are already highly amorphous and conductive, such as SPE10:1:1. Overall, while crosslinking affects ionic conductivity by restricting chain mobility, its downside impact is mitigated by the reduced SPE crystallinity and increased IL uptake. Furthermore, the impact of crosslinking on ionic conductivity is much less pronounced compared to the influence of IL concentration.