B. Luan et al., ON THE ELEMENTAL SUBSTITUTIONS OF TITANIUM-BASED HYDROGEN-STORAGE ALLOY ELECTRODES FOR RECHARGEABLE NI-MH BATTERIES, Journal of Materials Science, 32(10), 1997, pp. 2629-2635
Partial substitutions of nickel in Ti2Ni intermetallic compound with c
obalt, potassium, boron and aluminium have been studied in the present
paper. It is found that cobalt and boron additions are beneficial but
aluminium addition is detrimental to the specific capacity of the ele
ctrode. Potassium does not have any significant effect on the specific
capacity of the electrode from our work. Cobalt, potassium and alumin
ium additions are all found effective in increasing the cycle life of
Ti2Ni electrode, although by different mechanisms.