| 摘要 |
<p>A battery is provided with a pedestal section provided on the base end side of a columnar rivet section. A terminal rivet is formed on that surface of the pedestal section on which the rivet section is located, and the terminal rivet is provided with a sloped seat surface having a height which increases as one moves closer to the rivet section and provided at the entire circumference around the rivet section. The battery is also provided with an annular elastic member and a hard member having higher hardness than the elastic member and provided with a first hole having a diameter greater than the outer diameter of the elastic member and smaller than the outer diameter of the sloped seat surface. The terminal rivet is mounted such that the pedestal section and a current collecting section are located inside a battery case and such that the rivet section penetrates through a hole in the battery case to project outward. The hard member is mounted such that the elastic member is located in the first hole and is sandwiched between the pedestal section and the battery case. When the rivet section is staked, the elastic member is compressed in the thickness direction between the pedestal section and the battery case, and as a result, reliable sealing ability is maintained for a long period.</p> |
