All-solid-state fluoride-ion batteries (ASS-FIBs) are a promising candidate for post-lithium-ion battery technologies. Many possible combinations of conversion-based anode and cathode materials could outperform current lithium-ion batteries in terms of gravimetric capacity and volumetric energy density . However, conversion-based materials suffer from rapid capacity fading and bad rate capability due to high volume change and large overpotentials associated with the reorganization of the crystal structure upon conversion . Therefore, intercalationbased materials as they are also employed in current state-of-the-art lithium-ion batteries appear to be the way forward to achieve high cyclic stability for ASS-FIBs.