Effect of Adding Carbon Black to a Porous Zinc Anode in a Zinc-Air Battery

Abstract

Zinc-air batteries were fabricated using porous zinc anodes with various concentrations of Super P carbon black additive. The introduction of Super P significantly improved the electrochemical performance of the batteries. The specific discharge capacity and power density of the Zn anode with 2 wt% Super P anode was 776 mA h g−1 and 20 mW cm−2, respectively. The batteries also exhibited good durability and stability at an open circuit voltage maintained at approximately 1.4 V. The bridging between Zn powders by Super P may explain the improved electrochemical performance of the batteries. Morphological images and structural properties were also analyzed to support these observations.

Discharge performance of zinc coating prepared by pulse electroplating with different frequencies for application in zinc-air battery

“…There was about a 60% improvement of peak power density over BZn. The highest specific power density at room temperature achieved by Masri and coworkers [25] was 20 mW cm − 2 by using zinc powder mixed with 2 wt% Super P as the anode and MnOx-based air electrode as the cathode. This results indicated that the anode prepared by pulse plating with frequency of 500 Hz revealed a 15% improvement in power density without temperature effect.…”

Challenges, mitigation strategies and perspectives in development of zinc-electrode materials and fabrication for rechargeable zinc–air batteries

“…Electrode structural additives, such as acetylene black, graphite, activated carbon, carbon black and graphene oxide, are widely used in zinc-electrodes to inhibit the formation of dendrites. For example, Mohamad et al 96 added Super-P to a porous zinc-electrode and investigated the performance of the assembled RZABs in a 6 M KOH electrolyte. The obtained results indicated that the zinc-electrode with 2 wt% Super-P could give a specific discharge capacity of 776 mA h g À1 and a power density of 20 mW cm À2 , induced by the arrangement of zinc particles and Super-P powder on the porous zinc-electrode ( Fig.…”

Suppression of zinc anode corrosion for printed flexible zinc‐air battery

“…Recently, zinc‐air batteries have attracted tremendous attention because of their strong potential for future energy applications,, ,, ;, . Zinc‐air batteries use raw materials which are relatively low cost, have low toxicity, and are environmentally friendly but exhibit high specific energy density.…”