Preparation and Performance Evaluation of Zn Electrode in Zn-Ag Battery

With the development of space science and the military, the use of high-current power supply devices has attracted much attention.Zinc-silver primary batteries have the advantages of high specific energy density, stable working voltage, high charging efficiency, safety, and environmental friendliness, zinc-silver primary batteries have proven to be a source of high power.The Zn electrode in battery still faces some serious challenges, such as nonporous, uneven surface, and unendurable.In recent years, some attempts have been to increase the performance of Zn-Ag batteries by increasing the porosity and durability of the electrode by using flexible conductivity adhesives.In this work, we used nanofiber polymer glue as the material adhesive in the electrode.Here aramid nanofibers (ANFs) are used to bond zinc particles on the collector.The mixture of ANFs and Zn powders was coated on the copper mesh and compressed under 1 MPa pressure after drying at 150 C for 4 hrs.SEM images investigated the morphology of the Zn electrode with the distribution of Zn particles and ANFs on the surface electrode.The electrochemical performance such as the current and potential of the Zn -Ag battery was evaluated and obtained the maximum value 3.7A with 2%wt.ANFs in the mixture.