Rechargeable battery having insulation case

摘要

A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator located between the first electrode and the second electrode; a case accommodating the electrode assembly; a cap plate sealing an opening of the case; and an insulation case located between the cap plate and the electrode assembly, the insulation case having a base and a side wall protruding from the base, the side wall including avoiding portions formed thereon.

主权项

1. A rechargeable battery comprising:
an electrode assembly including a first electrode, a second electrode, and a separator located between the first electrode and the second electrode; a case accommodating the electrode assembly; a cap plate sealing an opening of the case, the cap plate having an alignment protrusion protruding towards the electrode assembly; an insulation case located between the cap plate and the electrode assembly, the insulation case having a base and a side wall protruding from the base, the side wall including recessed avoiding portions formed thereon, a first tab on the first electrode, the first electrode electrically connected with the cap plate via the first tab; a second tab on the second electrode; and a connection plate electrically connected to the second tab and being rotatable with respect to the cap plate, wherein the connection plate has a pair of short circuit protrusions spaced from each other such that a first protrusion of the pair of short circuit protrusions is configured to contact the case and a second protrusion of the pair of short circuit protrusions is configured to contact the alignment protrusion if the case is bent.