Zn-based eutectic mixture as anolyte for hybrid redox flow batteries.

ABSTRACT: Developing greener batteries with new chemistries is a formidable challenge, and a major focus for years to come. Redox flow batteries are receiving increasing research interest for grid-scale electrochemical energy storage owing to their unique architecture. However, challenges still remain by their low energy density as well as corrosive and/or toxic electrolytes. An anolyte based on aprotic Zn deep-eutectic-solvent, which uses low cost, abundant and environmentally benign materials, exhibits a utilizable concentration of Zn²⁺ ca. 1.7 M, resulting in a reversible volumetric capacity of ca. 90 A h·L^-1. Combined with high efficiencies and relatively low redox potential of -1.12 V vs. Ag/AgCl, such an anolyte provides an alternative way to explore a family of anolytes

SUBMITTER: Wang Y 

PROVIDER: S-EPMC5893549 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature