Patent ID: 7537720
Filing Date: 2009-05-26
Classification: H01M,Y02E,Y02P

Abstract:
1. A method for preparation of a battery comprising: preparing a protection circuit module (PCM) insert injection mold separate from a battery cell, the protection circuit module (PCM) insert injection mold prepared by inserting a PCM, including a plate having a protection circuit formed thereon and connection terminals and optionally leads, with the protection circuit plate, connection terminals and leads being electrically connected, into an inner space of a mold, and injecting a molten resin into the inner space of the mold such that the leads are partially exposed to the outside where the PCM includes the leads, or such that the connection terminals are partially exposed to the outside where the PCM does not include the leads; and directly connecting the exposed parts of the connection terminals to the corresponding electrode terminals of the battery cell, or connecting the connection terminals to the corresponding electrode terminals of the battery cell via the leads of which are partially exposed from the bottom of the PCM insert injection mold, wherein a battery is formed only when the PCM insert injection mold is mounted on the battery cell, and then the connection terminals or leads of the PCM insert injection mold are directly connected to the battery cell.