Patent ID: 8632910
Filing Date: 2014-01-21
Classification: H01M,H05K,Y02E

Abstract:
1. A protection circuit assembly for a battery assembly that includes a bare cell having at least one electrode, the protection circuit assembly comprising: a protection circuit board adapted to control the charge and discharge of the bare cell; and a positive temperature coefficient (PTC) assembly that includes a PTC main body having a first surface and a second surface, a first lead and a second lead wherein the first lead attaches the first surface of the PTC main body to the protection circuit board wherein the second lead is adapted to allow the second surface of the PTC main body to be subsequently connected to the at least one electrode of the bare cell and wherein the first surface of the PTC main body is positioned adjacent the bare cell so that the first lead is attached to the first surface so as to be interposed between the bare cell and the PTC main body and wherein the second surface of the PTC main body is positioned adjacent the protection circuit board so that the second lead is attached to the second surface of the PTC main body so as to be interposed between the protection circuit board and the PTC main body, wherein the first lead and the second lead comprise a first conductive portion, a second conductive portion and a connection portion for connection of the first conductive portion to the second conductive portion, respectively, wherein the connection portion is vertically formed to provide a height difference between the first conductive portion and the second conductive portion.