The cover feature highlights the innovative Na quasi-intercalation process between black phosphorus (P) and NaP, which significantly enhances the performance of Na-ion battery anodes. This process in black P nanocomposites results in superior electrochemical properties, including highly reversible capacity, excellent cycling stability, and rapid rate capability. These advancements make the material highly promising for high-performance Na-ion batteries. Detailed information is available in the article by T.-H. Kim and C.-M. Park.-Science Journal cover design by scapiens

https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/batt.202000303