| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery having excellent sealing properties of a fixed portion between an outer jacket and an external terminal. <P>SOLUTION: A battery 10 comprises an outer jacket 30, an external terminal 40, an insulating member 50, and a burring portion 34 disposed on the periphery of a through hole 33 of a lid portion 32 of the outer jacket 30 and projecting outward from the outer jacket 30. The inner surface of the through hole 33 is plastically deformed inward by pressing the outer edge of the projection end face of the burring portion 34 inward with a punch 60 having a pressing blade 61 which has a pressing width larger than the radial width of the burring portion 34 and a tip tilting from the outer edge to the inner edge toward the projecting direction of the burring portion 34 to fix the external terminal 40 to the lid portion 32. <P>COPYRIGHT: (C)2013,JPO&INPIT |
