(JP8069793-A)      An appts. comprises at least one Zn negative electrode (3) including a Zn active material (21), Ba or Sr hydroxide and a conductive matrix (22) including an oxide of a metal which is more electropositive than Zn (23).    Also claimed is an appts. as above in which the Zn electrode further incudes a porous hydrophobic element between two electrode assemblies as above, a current collector, and a gas recombination catalytic element contg. the oxide above which abuts the hydrophobic element and the collector.    USE -   Used as a sec. rechargeable, battery.    ADVANTAGE -   Cycle life without degradation is increased (over 200 cycles), shape change is reduced and gas recombination is increased so that venting is hardly needed.    (EP697746-B1)      An appts. comprises at least one Zn negative electrode (3) including a Zn active material (21), Ba or Sr hydroxide and a conductive matrix (22) including an oxide of a metal which is more electropositive than Zn (23).    Also claimed is an appts. as above in which the Zn electrode further incudes a porous hydrophobic element between two electrode assemblies as above, a current collector, and a gas recombination catalytic element contg. the oxide above which abuts the hydrophobic element and the collector.    USE -   Used as a sec. rechargeable, battery.    ADVANTAGE -   Cycle life without degradation is increased (over 200 cycles), shape change is reduced and gas recombination is increased so that venting is hardly needed.    (JP3056054-B2)      An appts. comprises at least one Zn negative electrode (3) including a Zn active material (21), Ba or Sr hydroxide and a conductive matrix (22) including an oxide of a metal which is more electropositive than Zn (23).    Also claimed is an appts. as above in which the Zn electrode further incudes a porous hydrophobic element between two electrode assemblies as above, a current collector, and a gas recombination catalytic element contg. the oxide above which abuts the hydrophobic element and the collector.    USE -   Used as a sec. rechargeable, battery.    ADVANTAGE -   Cycle life without degradation is increased (over 200 cycles), shape change is reduced and gas recombination is increased so that venting is hardly needed.