A carrageenan-induced highly stable Zn anode by regulating interface chemistry.

Zinc-ion batteries (ZIBs) are promising on account of the inherent safety, minimal toxicity, cost-effectiveness, and high theoretical capacity. However, the critical issues including the Zn dendrites and side reactions impede their commercial application. Here, we propose green, non-toxic and biological carrageenan (Carr) serving as an electrolyte additive to address the aforementioned issues.