Ultralow and biodegradable electrolyte additives for dendrite-free Zn anodes

Side reactions and dendrite issues restrict the development of aqueous zinc-ion batteries. Herein, capryhydroxamic acid (CHA) as an electrolyte additive is developed to address these issues. It effectively regulates zinc/electrolyte interfaces and prevents Zn anodes from side reactions, promoting uniform Zn deposition. Therefore, the electrochemical performance is enhanced.