Flexible Hybrid Zn–Ag/Air Battery with Long Cycle Life

Abstract

A battery with high energy density, large capacity, long cyclability, safety, and flexibility is desired to not only power small electronic devices but also provide solutions to large-scale energy storage management. In this work, a hybrid battery of Zn–Ag and Zn–air (Zn–Ag/air) has been successfully fabricated in which Ag acted as an active material at the charging state and as an oxygen reduction reaction catalyst at the discharging state. In traditional zinc air batteries, Ag was used as a catalytic material only. In this work, sufficient amounts of Ag nanoparticles were covered onto stainless steel wire screen via a facile electrodeposition procedure as not only catalytic materials but also active redox materials. The rigid hybrid battery delivered two discharging plateaus at 1.5 and 1.1 V in which the higher one was attributed to reduction of Ag2O to Ag and the lower one resulted from Ag-assisted oxygen reduction reaction. The cyclability test showed that the Coulombic efficiency retained higher than 85% after 1700 cycles. Furthermore, the Zn–Ag/air hybrid battery was also able to be packed in a pouch cell and demonstrated high flexibility and rechargeable capability. Overall results indicate that the hybrid battery possesses both advantages of Zn–Ag and Zn–air batteries with improved discharging potential and enhanced storage capacity.

Electrochemical and Physical Properties of Imidazolium Chloride Ionic Liquids with Pyrrolidinium or Piperidinium Cation Addition and Their Application in Dual‐Ion Batteries

“…[ 4 ] However, the shortage of lithium resources, uneven geographical distribution, and safety issues due to combustion and explosions limit the sustainable development of LIBs. [ 5 ]…”

An Overview and Future Perspectives of Rechargeable Zinc Batteries

“…At the same time, its capacity and stability are also higher than the reported same type of hybrid battery (Figure 8f). Moreover, Wang and co‐workers [ 101 ] deposited the Ag nanoparticles on a stainless steel mesh using an electrodeposition method and assembled them into a pouch battery, further improving the electrochemical performance of the hybrid Zn–Air/Ag. These researches are of great significance, contributing to other types of energy storage technologies for aqueous metal ion batteries and metal/air battery combinations.…”

Recent development of aqueous zinc‐ion battery cathodes and future challenges: Review

“…From a resource standpoint, other non‐aqueous batteries, such as sodium‐ion batteries (NIB) 9‐13 and potassium‐ion batteries (KIBs), 14‐18 are viable for large‐scale applications, but their safety and technological maturity are major issues to address before mass applications. Multivalent cations batteries, such as, magnesium‐ion batteries (MIBs), 19‐23 ZIBs, 24‐28 and aluminum‐ion batteries (AIBs), 29‐33 have been investigated in the current time due to their good volumetric energy density, and environmental positivity 34 . Among the aqueous electrolyte‐based energy storage devices, ZIB was observed to be the most ideal one, due to that fact that, Zn has better characteristic properties as an anode than other metallic materials (eg.…”