What are the cathode materials for Ni-MH batteries?

Ni-MH battery cathode material: nickel-based current collector: foamed nickel or nickel foil; active material: nickel hydroxide Ni(OH)2; conductive agent: nickel powder; additives: cobalt, cobalt oxide, Y2O3, Yb2O3, etc.; Adhesive: CMC, PTFE, etc. Powder preparation (including positive electrode active material and negative electrode active material) → pole piece production [including positive electrode and negative electrode pieces, the process includes coating, drying (not required for dry production), rolling, cutting, weighing, and positive electrode pieces. Welding lugs and covering the lugs with insulating tape]→winding into the shell (prepared the appropriate size diaphragm before)→rolling groove→filling electrolyte→adding sealing ring→spot welding battery cover→sealing→battery activation→capacity The sorting Ni-MH battery has the characteristics of fast charging, safety and reliability, environmental pollution and long life. Ni-MH batteries have no memory effect. The positive active material of the nickel-hydrogen battery is nickel hydroxide (called nickel oxide electrode), the negative active material is metal oxide, also called hydrogen storage alloy (the electrode is called hydrogen storage electrode), and the electrolyte is 6N potassium hydroxide. The active material of the positive electrode of the nickel-hydrogen battery is NiOOH (when discharging) and Ni(OH)2 (when charging), the active material of the negative plate is H2 (when discharging) and H2O (when charging), and the electrolyte uses 30% oxyhydroxide Potassium solution. When charging, the negative electrode releases hydrogen gas and is stored in a container. The positive electrode changes from nickel hydroxide to nickel hydroxide (NiOOH) and H2O; during discharge, hydrogen is consumed on the negative electrode, and the positive electrode changes from nickel hydroxide to nickel hydroxide. . Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to use lithium batteries?