Acetate as Electrolyte for High Performance Rechargeable Zn-Mn-Deposited Zn/Ni Foam-Supported Polyaniline Composite Battery

Abstract

Increased electroactivity of polyaniline prior doped with lithium ions is observed during polymerization by cyclic voltammograms (CV) compared with pure polyaniline. The electrochemical performance of a three-dimensional nickel foam-supported polyaniline composite prepared by electrophoresis and a casting process was investigated at different low-vacuum pressures for casting the aforementioned slurry. An appropriate vacuum pressure of 3000 Pa was certified by cyclic voltammetry and scanning electron microscopy. The nickel foam-supported polyaniline composite cathode were prepared and observed with prohibited hydrogen evolution and the enhanced conductivity in a manganese acetate-zinc acetate solution electrolyte system with lithium ions additive. The deposited zinc anode prepared by co-electrodeposition of zinc-manganese exhibited with high discharge voltage and stable discharge platform. The zinc-manganese-deposited zinc//nickel foam-supported polyaniline composite battery exhibited significant improvement in the capacity density and cycle performance. A discharge capacity density of 142.3 mAh.g −1 was attained by the battery, and it was maintained more than 94.7% of the original value after 60 cycles, and there was no distinct change in the coulomb efficiency with an average value of 90% over the experiment, which indicates that the present cell has promising possibility for use as an energy storage or high-performance rechargeable battery.

Fabrication of semi‐flexible carbon quantum dots‐reinforced polypyrrole ( PPy / CQDs ) composite electrodes by hybrid electrospray deposition for high‐performance energy storage device

“…FESEM images of PPy‐CQDs (0.5) (Figure 3C illustrated the slightly higher surface roughness of the electrode, where directly proposed to the CQDs concentration. This clear accords with the previously reported work in the literature 45,46 . Figure 3D shows a compact flaking morphology of PPy/CQDs (0.75).…”

“…This clear accords with the previously reported work in the literature. 45,46 Figure 3D shows a compact flaking morphology of PPy/CQDs (0.75). This morphology contributes to the electrical interaction between PPy and CQDs with enhanced charge transfer.…”

Advancements, challenges, and applications of rechargeable zinc‐ion batteries: A comprehensive review

“…In the study of Cao et. al [65], Zn(CH 3 COO) 2 was determined to improve the redox chemistry and mitigated anode corrosion although it has the drawback that escalates the formation of dead cathode material on which they control using additive. Similarly, incorporation of ZnBr 2 was determined to stabilize redox chemistry but can also affect the kinetics of the battery system [67].…”

“…Recent studies primarily focus on ZnSO 4 's potential to enhance specific capacity and performance relative to concentration [62,63]. Other species reportedly used for ZIBs include ZnCl 2 [64], Zn(CH 3 COO) 2 [65], Zn(NO 3 ) 2 [66], and ZnBr 2 [67]. Tang et al [64] for example, utilized ZnCl 2 used for V 2 -O 5 -Zn battery and the results of their study revealed that it enabled proton insertion, enhanced the reversibility and prolonged life span.…”