Low temperature induced highly stable Zn metal anodes for aqueous zinc-ion batteries

Chem Commun (Camb). 2021 Nov 2;57(87):11477-11480. doi: 10.1039/d1cc04731k.

Abstract

We report a highly stable Zn metal anode by simply controlling the operating temperature at 0 °C. Without any further protection, the Zn anode exhibits an ultra-long cycle life over 2500 h (>100 days) in Zn symmetric cells with 3 M Zn(CF3SO3)2 aqueous electrolyte. This impressive performance is ascribed to the improved Zn metal corrosion resistance and compact and smooth Zn surface morphology during Zn plating/stripping at low temperatures.