Secondary battery pack

摘要

Disclosed is a secondary battery pack including a battery cell having a cathode and anode terminal formed at one face having a sealed surplus portion and a protection circuit module (PCM) electrically connected to the cell via the cathode and anode terminal, wherein the PCM includes a board having a cathode terminal connection part connected to the cathode terminal and an anode terminal connection part connected to the anode terminal and an electrically insulative case configured to receive the board through an open face thereof. The board, connected to the cathode terminal and anode terminal of the battery cell via the cathode terminal connection part and the anode terminal connection part, is mounted to the sealed surplus portion of the cell in a state in which the board is disposed in the case so that the cathode and anode terminal are exposed through the open face of the case.

主权项

1. A secondary battery pack comprising:
a battery cell having a cathode terminal and an anode terminal formed at one face having a sealed surplus portion; and a protection circuit module (PCM) electrically connected to the battery cell via the cathode terminal and the anode terminal, wherein the PCM comprises:
a board having a cathode terminal connection part connected to the cathode terminal and an anode terminal connection part connected to the anode terminal; andan electrically insulative case configured to receive the board through an open face thereof, and the board, connected to the cathode terminal and the anode terminal of the battery cell via the cathode terminal connection part and the anode terminal connection part, is mounted to the sealed surplus portion of the battery cell in a state in which the board is disposed in the case so that the cathode terminal and the anode terminal are exposed through the open face of the case, the electrically insulative case is provided with a mounting groove, in which the board and a safety element are mounted through the open face, and the battery cell is configured to have a structure in which an electrode assembly, comprising cathodes, anodes, and separators respectively disposed between the cathodes and the anodes, is disposed in a battery case made of a laminate sheet comprising a metal layer and a resin layer in a sealed state.