fig3
![Critical advances in re-engineering the cathode-electrolyte interface in alkali metal-oxygen batteries](https://image.oaes.cc/dacd4805-0577-4aab-a6a7-e6d872c1b093/4375.fig.3.jpg)
Figure 3. (A) Ex situ GPE vs. in situ GPE, with in situ GPE having higher ionic conductivity[44]. Reproduced from Ref.[44] with permission from John Wiley and Sons. (B) Schematic diagram of bottom-up infilling method[45]. Reproduced from Ref.[45] with permission from Springer Nature. GPE: Gel polymer electrolyte.