| 摘要 |
PURPOSE: To enable to manufacture a secondary battery at a lower cost. CONSTITUTION: A terminal member 2 is made to be used in combination with a rivet 5 for junction, and by using an insulation member 3 as a sealing member 4 in combination, the terminal member 2 and the insulation member 3 are disused, and a cap 10 is constituted by three items of the lap body 1, the rivet 5 and the sealing member 4. As for the sealing member 4, a cylindrical part 4b and a flange part 4a are formed as separated bodies, and the cylindrical part 4b is formed by cutting out a fluororesin tube, and a punched plate of a polypropylene resin sheet is used as the flange part 4a. Number of parts can be managed only by four items, and both parts cost and preparation cost can be managed more inexpensive than before. |
