| 摘要 |
PROBLEM TO BE SOLVED: To provide zinc alloy powder for an alkaline battery of which the amount of gas generation is suppressed and heavy load pulse discharge performance is improved and its manufacturing method as well as an alkaline battery using it. SOLUTION: A solid solution of the zinc alloy containing one or more kinds selected from a group of Bi 0.001 to 0.1 wt%, In 0.01 to 0.1 wt%, and 0.0001-0.1 wt% of one or more kinds of metals selected from a group of alkaline metal, alkaline earth metals, Al, and Ga, and consisting of the remaining part composed of inevitable impurities and zinc is atomized to form dispersed solid solution particles, onto which liquid is sprayed and quenched, and the dispersed crystal particles are atomized, thereby the zinc alloy powder for the alkaline battery is obtained which is substantially composed of particles of -20 mesh or less by making the crystal particles finer, and the average crystal particle numbers N are respectively 40 or more, 30 or more, 20 or more, and 5 or more in particle size distribution of respectively -200 mesh, +200 to -150 mesh, +150 to -100 mesh, and +100 to -50 mesh in 0.1 mm sq. of cross sectional powder particles. COPYRIGHT: (C)2004,JPO
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