Effect of zinc gel binder on zinc-air battery and zinc electrode

In order to improve the performance of zinc electrode,effect of sodium carboxymethyl cellulose(CMC)and polyacrylate sodium on electrochemical performance of zinc electrode and discharge performance of zinc-air battery were analyzed by contrast experiments.It showed that using the mixture of CMC and polyacrylate sodium as zinc gel binder,zinc electrode and zinc-air battery had better performances than others.AA size zinc-air battery was made with this zinc gel binder.It discharged for 39 h before voltage reached 0.9 V with 10 Ω constant load.The discharge curve of the cell had a flat plateau at 1.235 V,utilization of zinc powder was 83.1%.Its discharge capacity reached 4 770 mAh.