Battery pack

摘要

A battery pack includes a pouch-type bare cell, a protecting circuit module, a top case and a protecting circuit module support part. The pouch-type bare cell has a sealing region positioned in an extraction direction of an electrode lead. The protecting circuit module is positioned in the sealing region and connected to the electrode lead. The top case surrounds the protecting circuit module. The protecting circuit module support part is provided between the top case and the protecting circuit module. Accordingly, the protecting circuit module support part is formed between the top case and the protecting circuit module, so that it is possible to prevent a component mounted on the protecting circuit module from being damaged by an external impact and to prevent the inflow of a foreign matter from the outside of the battery pack, thereby improving the reliability and safety of the battery pack.

主权项

1. A battery pack comprising:
a pouch-type bare cell having a sealing region positioned in an extraction direction of an electrode lead, wherein the pouch-type bare cell has a top surface wherein the top surface of the pouch-type bare cell is perpendicular to the extraction direction of the electrode lead; a protecting circuit module positioned adjacent the sealing region and connected to the electrode lead; a top case surrounding the protecting circuit module wherein the top case defines a C-shape havin a first and a second leg with an inner and an outer surface having an opening and wherein the outer surface of the first leg of the top case is mounted on the top surface of the pouch-type bare cell with an adhesive interposed between the outer surface of the first leg and the top surface of the pouch-type bare cell so that the opening extends in a direction that is perpendicular to the direction of the top surface of the pouch-type bare-cell; and a protecting circuit module support part provided between the top case and the protecting circuit module wherein the opening in the top case is greater in width than the thickness of the protecting circuit module support part and the protecting circuit module when stacked together and wherein the electrode lead extends into the top case and is connected to the protecting circuit module via the opening in the top case.