(JP8213007-A)      Active material for an H2 storage electrode comprises (I) about 28-36 (33) at.% Ti; 40-56 (53) at.% V; 10-22 (14) at.% Ni; and opt. Al and/or Zr as less than 10 at.%. (II) about 15-20 at.% Ti; 15-40 at.% V; 10-20 at.% Zr, 30-55 at.% Ni; (III) about 5-25 at.% Ti; 40-55 at.% V; 5-25 at.% Cr; 10-25 at.% Ni. These materials are represented by (I) (TiV2-xNix)1-yMy; where M=Al or Zr, x=0.2-1.0, y=0-0.2; pref. y=0, x=0.40-0.45; (e.g. V53Ti33Ni14). (II) Ti2-xZrxV4-yNiy; where x is greater than 0 and up to 1.5, pref. =0.95-1.05; y=0.6-3.5, pref. 2 or 3; (e.g. Ti17 V17Zr16Ni50). (III) Ti1-xCrxV2-yNiy; where x is greater than 0 and up to 0.75; pref. =0.45-0.55; y=0.2-1.0, pref. 0.4-0.6 (e.g. V53Ti17Cr17Ni13).    An electrochemical cell comprises a casing contg. at least one electrode as above, for storing energy; and at least one counterelectrode spaced from the electrode, for releasing stored energy.    USE/ADVANTAGE -   The electrodes are generally used with Ni hydroxide counterelectrode and alkaline electrolyte. The active material compsn. and structure allows high charge and discharge rates, efficient reversibility, high electrical efficiency, bult H2 storage without structural change or poisoning, good mechanical integrity over a long cycle life, and deep discharge capability. The graph shows a representative discharge for exemplary material (III). A similar material maintained its iritial capacity of 1.7 Ah after 170 cycles.    (JP2951331-B2)      Active material for an H2 storage electrode comprises (I) about 28-36 (33) at.% Ti; 40-56 (53) at.% V; 10-22 (14) at.% Ni; and opt. Al and/or Zr as less than 10 at.%. (II) about 15-20 at.% Ti; 15-40 at.% V; 10-20 at.% Zr, 30-55 at.% Ni; (III) about 5-25 at.% Ti; 40-55 at.% V; 5-25 at.% Cr; 10-25 at.% Ni. These materials are represented by (I) (TiV2-xNix)1-yMy; where M=Al or Zr, x=0.2-1.0, y=0-0.2; pref. y=0, x=0.40-0.45; (e.g. V53Ti33Ni14). (II) Ti2-xZrxV4-yNiy; where x is greater than 0 and up to 1.5, pref. =0.95-1.05; y=0.6-3.5, pref. 2 or 3; (e.g. Ti17 V17Zr16Ni50). (III) Ti1-xCrxV2-yNiy; where x is greater than 0 and up to 0.75; pref. =0.45-0.55; y=0.2-1.0, pref. 0.4-0.6 (e.g. V53Ti17Cr17Ni13).    An electrochemical cell comprises a casing contg. at least one electrode as above, for storing energy; and at least one counterelectrode spaced from the electrode, for releasing stored energy.    USE/ADVANTAGE -   The electrodes are generally used with Ni hydroxide counterelectrode and alkaline electrolyte. The active material compsn. and structure allows high charge and discharge rates, efficient reversibility, high electrical efficiency, bult H2 storage without structural change or poisoning, good mechanical integrity over a long cycle life, and deep discharge capability. The graph shows a representative discharge for exemplary material (III). A similar material maintained its iritial capacity of 1.7 Ah after 170 cycles.