Patent ID: 7659013
Filing Date: 2010-02-09
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A method of forming a secondary battery comprising: mounting a bare cell and a protective circuit board in a mold having an axial opening; placing a plurality of supporting pins in the mold so that a lateral part of at least one of the plurality of supporting pins is in contact with a surface of the protective circuit board proximal to the bare cell such that the protective circuit board is in a correct position, wherein at least one of the plurality of supporting pins has a tapered insertable end inserted in the mold in a trans-axial direction toward the protective circuit board and wherein at least one of the plurality of supporting pins has a flat body portion contacting the protective circuit board proximal to the bare cell and a step configuration forming an elastically deformable insertable end thinner than a remaining portion of the pin, wherein the step configuration faces away from the protective circuit board; inserting an insertable core such that a front-end of the insertable core moves through the axial opening in the mold and contacts a surface of an external input/output terminal on the protective circuit board distal to the bare cell while sealing the axial opening in the mold; and pouring a plastic resin into the mold.