Hydrogen-absorbing alloy electrode and its manufacturing method.

摘要

The disclosure relates to a hydrogen-absorbing alloy electrode comprising an annealed hydrogen-absorbing alloy having a non-stoichiometric composition and a conductive substrate. The annealed hydrogen-absorbing alloy is coated on the conductive substrate. The alloy may be heat-treated at a temperature ranging from about 700 DEG C to about 1150 DEG C, and preferably from about 900 DEG C to about 1100 DEG C. The hydrogen-absorbing alloy has a crystal structure of a CaCu5 with a stoichiometric ratio ranging from about 3.85 to about 4.78 or from about 5.40 to about 6.50.