Patent ID: 8865343

Claim:
A prismatic type secondary battery, comprising: a battery cell including: a can accommodating a battery unit in which a first electrode plate, a separator, and a second electrode plate are wound, a cap plate sealing an opening of the can, and a first electrode lead and a second electrode lead electrically connected to and protruding from the first electrode plate and the second electrode plate, respectively; and a protection circuit module (PCM) assembly coupled to a cap plate of the battery cell and electrically connected to the first electrode lead and the second electrode lead, the PCM assembly including: a base circuit board; a plurality of electronic elements including a positive temperature coefficient (PTC) element mounted on the base circuit board and a first electrode output terminal on the base circuit board, wherein: a first output stage is formed by: a first end of the first electrode lead electrically connected to a first electrode terminal installed on the cap plate while being insulated from the cap plate, the first electrode lead electrically connected to the first electrode output terminal on the PCM assembly via the first electrode terminal, and the first electrode terminal to be electrically connected to a first terminal of an external device, and a second output stage is formed by: a first end of the second electrode lead electrically connected to the can or the cap plate, which is to serve as a second electrode output terminal, and the second electrode output terminal to be electrically connected to a second terminal of the external device, wherein a first connection lead electrically connects the PTC element and the first electrode output terminal, and a second connection lead electrically connected to the cap plate is installed in the PCM assembly.