SECONDARY BATTERY PACK

A secondary batter pack disclosed in the present application comprises: a battery cell comprising a sealed surplus part, and having a cathode terminal and an anode terminal on one surface thereof; and a protection circuit module (PCM) connected electrically to the battery cell via the cathode terminal and the anode terminal. The PCM comprises: a substrate having a cathode terminal connecting part connected to the cathode terminal and an anode terminal connecting part connected to the anode terminal; and an electrically insulating case constructed so as to house the substrate by means of an one open side thereof, wherein the substrate, which is connected to the cathode terminal and the anode terminal of the battery cell via the cathode terminal connecting part and the anode terminal connecting part, is housed inside the case in such a manner that the cathode terminal and the anode terminal are exposed through the open side of the case, and is mounted on the sealed surplus part of the battery cell.