(JP4179052-A)   NOVELTY - The secondary battery comprises non-sintering type nickel anode and hydrogen-occlusion alloy cathode which is formed by applying paste containing hydrogen occlusion alloy powder, polyacrylate, carboxymethyl cellulose, electroconductive material powder and fluorine resin, on a punched metal with pore diameter of 1-5 mm and porosity of 45-70%.    USE - For electronic device.    ADVANTAGE - High volume nickel hydrogen secondary battery with high reliability, is obtained by incorporating alkali electrolyte in the container. The utilization factor of hydrogen-occlusion alloy cathode, is improved by applying the paste containing hydrogen occlusion alloy powder on punched metal with high porosity. The secondary battery with excellent charging and discharging cyclic characteristics is provided.    DETAILED DESCRIPTION - The nickel hydrogen secondary battery comprises non-sintering type nickel anode, separator and hydrogen-occlusion alloy cathode, which are spirally wound and provided inside a container containing electrolyte. The anode is formed by applying a paste containing nickel hydroxide, cobalt monoxide and binder, on an electroconductive core. The cathode is formed by applying a paste containing 100 weight parts (wt.pts) of hydrogen occlusion alloy powder, 0.005-1 wt.pts of polyacrylate, 0.01-1 wt.pts of carboxymethyl cellulose, 0.12-4 wt.pts of electroconductive material powder and 0.5-7 wt.pts of fluorine resin, on punched metal. The thickness of punched metal occupied in the entire thickness of cathode is 10-35%. The punched metal comprises several holes, where every 3 holes adjoin mutually to form an equilateral triangle. The electrodes are wound along a direction parallel to one edge of the equilateral triangle of the punched metal. The rotation viscosity ratio (R) of the nickel hydrogen secondary battery, is 100-400 P, where R is V1/V2, V1, V2 are the viscosities (at 25degreesC) measured at revolution number of 6 rpm and 60 rpm, respectively using Brookfield type viscosity meter (single cylindrical viscosity meter) calibrated by the viscosity standard liquid described in ASTM.