| 摘要 |
PURPOSE:To support external pressure in a sealing part to prevent breakage of a positive mix and increase leakage resistant ability by extending a ceiling part of a positive ring, and placing extended parts in contact parts of a positive mix and a separator. CONSTITUTION:A positive ring 3 has a ceiling part 3a and foot parts 3b, 3c, and 3d which hang down from the inside of the ceiling part 3a and are placed between a positive mix 2 and a separator 6. The positive ring 3 is made of iron plate and press-molded, then nickel-plated to give corrosion resistant ability. By using this positive ring, breakage of the positive mix is prevented. |
