Secondary battery

摘要

A secondary battery including an electrode assembly including a first electrode, a second electrode, and a separator between the first and second electrodes; a first collecting part electrically connected to the first electrode; a second collecting part electrically connected to the second electrode; a case configured to receive the electrode assembly; a cap assembly including a cap plate configured to seal an opening of the case; and an auxiliary connection part electrically connected between the second collecting part and the cap plate, and the second collecting part includes at least two fuse parts, a first extension part, and a second extension part connected to the second electrode.

主权项

1. A secondary battery comprising:
an electrode assembly comprising a first electrode, a second electrode, and a separator between the first and second electrodes; a first collecting part electrically connected to the first electrode; a second collecting part electrically connected to the second electrode; a case configured to receive the electrode assembly; a cap assembly comprising a cap plate configured to seal an opening of the case; and an auxiliary connection part electrically connected between the second collecting part and the cap plate, wherein the second collecting part comprises:
at least two fuse parts;a first extension part; anda second extension part connected to the second electrode, and wherein a first end of the auxiliary connection part is connected to a fixing part of the second collecting part between first and second fuse parts of the at least two fuse parts, and a second end of the auxiliary connection part is connected to a bottom surface of the cap plate or an inner side of the case.