The preparation methods of hydrogen absorbing electrode include powder sintering method and polymer bonding method. The powder sintering method is to press and form the hydrogen-absorbing alloy powder or its hydride, sinter in a vacuum, cool and introduce hydrogen to make it; or mix the hydride and carbonyl nickel powder and fill it into the foam nickel In the micropores, after pressing and then sintering in vacuum, a porous hydrogen absorbing electrode is obtained. The polymer bonding method is usually used for the production of rare earth alloy electrodes. Nickel powder or graphite powder is mixed into the alloy powder, and the polymer is bonded to form a film, and then pressed on the conductive nickel net. Other manufacturing processes for metal hydride nickel batteries are the same as those for cadmium nickel batteries (07401).