Robust Anode‐Free Sodium Metal Batteries Enabled by Artificial Sodium Formate Interface (Adv. Energy Mater. 22/2023)

Sodium Metal Batteries In article number 2204125, Xiaoliang Fang and co-workers develop an artificial formate sodium interface with rapid ion conduction and high mechanical strength for constructing high-performance sodium metal batteries. This strategy promotes uniform sodium deposition and inhibits electrolyte side reactions, enabling an anode-free sodium metal battery to deliver excellent cycling stability with 88.2% capacity retention over 400 cycles.