Comparative investigation of different types of nickel foam samples for application in supercapacitors and other electrochemical devices

Nickel foam is widely used as a current lead/current collector and the basis of nickel hydroxide electrodes for various electrochemical devices – batteries, hybrid supercapacitors, electrocatalytic oxidation organic substances. The characteristics commercial samples produced by Novomet-Perm (Russian Federation) obtained electroless then plating Linyi Gelon LIB Co Ltd (China) were studied. nature passivity was determined forming model on steel base. For passive sample, activation carried out applying layer from an impact solution. Activated, non-activated foam, well samples, studied methods cyclic voltammetry galvanostatic charge-discharge cycling in supercapacitor mode. Comparative analysis Chinese-made Russian-made showed significant former voltammetry, activity 4.8 times lower, with 2.59 lower. It suggested that high fact sample consisted Ni-P or Ni-B alloy. This assumption proved method natural simulation. 1.25 lower than (according to data) 1.58 data). first time, (electroless nickel) activated electrolyte. efficiency shown follows curve, specific anodic peak increased 8.71 times, cycling, increase capacity 1.73 (at i=120 mA/cm2) 4.84 i=20