Patent ID: 8389146

Claim:
A terminal unit comprising: an electrode part disposed in a case, for connecting with an electrode body; and a terminal part having a rod shape with a first end and a second end, the first end for fixing to the electrode part, and the second end extending outside of the case, wherein the electrode part comprises an insert hole for inserting the terminal part, and wherein the terminal part comprises a clinch portion comprising: an insert portion having a larger diameter than that of the hole and formed at the first end; and a tip portion having a smaller diameter than that of the hole and formed at a nearer side of the first end than the insert portion, wherein the clinch portion is press fitted into the insert hole, thereby fixing the terminal part to the electrode part, wherein the insert portion has an uneven surface having projections and recesses at a periphery thereof, and wherein the tip portion has a tapered portion being tapered from the first end toward the second end.