Cover Picture: Tailored Organic Electrode Material Compatible with Sulfide Electrolyte for Stable All‐Solid‐State Sodium Batteries (Angew. Chem. Int. Ed. 10/2018)

All-solid-state sodium batteries require chemical and electrochemical compatibility between cathode materials and solid-state sodium-ion electrolytes for a stable cycling performance. In their Communication on page 2630 ff., Y. Yao et al. report a solid-state sodium battery with record-high cycling stability and one of the highest specific energies based on an organic quinone (Na4C6O6) as the cathode material that is compatible with sulfide electrolytes.