Present Studies on Activation Method of AB_2 Hydrogen Storage Alloys

There are some methods to activate the AB 2 hydrogen storage alloys:method of adding trace thulium,method of F_treatment,hot alkali charging treatment,hot alkali dipping treatment and ball milling.Because of improving the surface state of alloy particles the high reaction property and quick activation of electrode can be realized.By comparison,surface treatment is considered as the perferable method,meanwhile,the new method only using KOH solution is proposed.