| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a positive electrode can for an alkaline battery securely preventing the alkaline battery from leaking. <P>SOLUTION: The positive electrode can 11 for an alkaline battery 10 is a cylindrical pressed component having an opening 16, a trunk 17, and a bottom 18. The trunk 17 is supplied with a positive electrode mixture 12 under pressure, and the opening 16 is equipped with a sealing gasket 23. In the positive electrode can 11, the inner surface of the opening 16 has a surface roughness Ra of 1 to 3 μm, the inner surface of the trunk 17 has a surface roughness Ra of 0.5 to 2 μm, and the surface roughness of the inner surface of the opening 16 is greater than the surface roughness of the inner surface of the trunk 17. <P>COPYRIGHT: (C)2012,JPO&INPIT |
