LEAD MEMBER AND BATTERY USING LEAD MEMBER

摘要

A lead member capable of appropriately bonding a conductor and an insulating resin film without increasing the thickness of the adhesive layer of the insulating resin film more than necessary, and a battery using the lead member. A lead member (3) having a pair of insulating resin films (5) adhered from both sides of a conductor (4) of a metal foil to a part of a lengthwise direction of the conductor (4) And the adhesive layer 5a of the conductor 4 is disposed so as to escape to the outside of the conductor 4 in the width direction of the conductor 4 and exits to the outside. The conductor 4 has a parallel portion 41 whose both sides are parallel to each other in a cross section in the width direction, a dimmer portion 42 whose thickness gradually decreases from the parallel portion 41 toward the end portion, And a pendant portion (43) at a further end side. The dimple portion 42 has a slope of 45 degrees or less with respect to the parallel portion 41 and the edge portion 43 has a slope of 45 degrees or more with respect to the parallel portion 41. [ The thickness of the parallel portion 41 is not less than 4 times and not more than 10 times the thickness of the adhesive layer 5a and the thickness of the boundary portion between the dimple portion 42 and the edge portion 43 is 0.4 times the thickness of the parallel portion 41 Or more and 0.7 times or less. The value obtained by dividing the contact area between the insulating resin film 5 and the conductor 4 by the thickness of the adhesive layer 5a is 2000 or more.