Patent ID: 8920949
Filing Date: 2014-12-30
Classification: H01M,Y02E,Y02T

Abstract:
1. A battery unit, having a circular cylinder shape, comprising: a flat battery having a circular shape, and having a tubular exterior can with a first flat circular bottom, a first side cylindrical wall and an opening, and a tubular sealing can with a second flat circular bottom and a second side cylindrical wall, the sealing can covering the opening of the exterior can, the exterior can and the sealing can being assembled so that a portion of the first side cylindrical wall of the exterior can that is adjacent to the opening is positioned on an outer circumference of the second cylindrical side wall of the sealing can; and a substrate provided on the first flat circular bottom of said exterior can or the second flat circular bottom of said sealing can, said substrate being mounted with a circuit component, of the flat circular bottoms of the exterior can and the sealing can, the flat circular bottom which is provided with said substrate thereon being provided with a battery terminal electrically connected to the flat battery, said substrate having a substrate terminal electrically connected to said battery terminal at a side surface thereof.