| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve problems that it is difficult to secure a route in which generated gas is dissipated when an explosion proof mechanism is actuated, and that it lacks in reliability in a conventional cylindrical alkaline battery. <P>SOLUTION: The cylindrical alkaline battery houses a positive electrode molding body 12, a separator 13, and a gelatinous negative electrode 14 in a positive electrode can 11, a negative electrode current collecting rod 15 is inserted into the gelatinous negative electrode, a positive electrode can opening is sealed with a metal sealing plate 18 and an electric insulation gasket 16 mounted at the end of the negative electrode current collecting rod 15, and a battery circumferential face is covered with a heat-shrinkable sheathing material 20. Furthermore, in the cylindrical alkaline battery, an insulating ring 19 is arranged in a gap between the metal sealing port plate 18 and the electric insulating gasket 16, a flange of the insulating ring 19 is pinched by a curl part of the positive electrode can 11 and the heat-shrinkable sheathing material 20, and a degassing hole is formed at one part of the metal sealing plate 18. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
