Boosting Zn||I₂ Battery's Performance by Coating a Zeolite-Based Cation-Exchange Protecting Layer.

ABSTRACT:

Highlights

High-performance Zn||I₂ batteries were established by coating zeolite protecting layers. The Zn²⁺-conductive layer suppresses I₃^- shuttling, Zn corrosion/dendrite growth. The Zeolite-Zn||I₂ batteries achieve long lifespan (91.92% capacity retention after 5600 cycles), high coulombic efficiencies (99.76% in average) and large capacity (203-196 mAh g^-1 at 0.2 A g^-1) simultaneously. The intrinsically safe Zn||I₂ battery, one of the leading candidates aiming to replace traditional Pb-acid batteries, is still seriously suffering from short shelf and cycling lifespan, due to the uncontrolled I₃^--shuttling and dynamic parasitic reactions on Zn anodes. Considering the fa

SUBMITTER: Shang W 

PROVIDER: S-EPMC8956761 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature